A fast, powerful and stable filter based on combined wavelet and Fourier analysis for the elimination of horizontal or vertical stripes in images is presented and compared with other types of destriping filters. Strict separation between artifacts and original features allowing both, suppression of the unwanted structures and high degree of preservation of the original image information is endeavoured. The results are validated by visual assessments, as well as by quantitative estimation of the image energy loss. The capabilities and the performance of the filter are tested on a number of case studies related to applications in tomographic imaging. The case studies include (i) suppression of waterfall artifacts in electron microscopy images based on focussed ion beam nanotomography, (ii) removal of different types of ring artifacts in synchrotron based X-ray microtomography and (iii) suppression of horizontal stripe artifacts from phase projections in grating interferometry. ...
The purpose of this study was to develop, implement and evaluate a dedicated metal artefact reduction (MAR) method for flat-detector CT (FDCT). The algorithm uses the multidimensional raw data space to calculate surrogate attenuation values for the original metal traces in the raw data domain. The metal traces are detected automatically by a three-dimensional, threshold-based segmentation algorithm in an initial reconstructed image volume, based on twofold histogram information for calculating appropriate metal thresholds. These thresholds are combined with constrained morphological operations in the projection domain. A subsequent reconstruction of the modified raw data yields an artefact-reduced image volume that is further processed by a combining procedure that reinserts the missing metal information. For image quality assessment, measurements on semi- anthropomorphic phantoms containing metallic inserts were evaluated in terms of CT value accuracy, image noise and spatial resolution before ...
A circuit and method for compensating for an electrode motion artifact in which the electrode motion artifact is generated because impedance between a subject and a measuring electrode changes during measurement of the subjects biosignal, and the electrode motion artifact can be differentially measured and an electrocardiogram signal can be compensated by introducing a predetermined voltage or an electric current to the subject. A circuit and method for compensating electrode motion artifact, which can differentially measure the difference information between impedance components by introducing a predetermined voltage or electric current to a subject, in association with the electrode motion artifact. In this instance, the impedance component is a component of electrode motion artifact and the electrode motion artifact is generated when measuring a biosignal.
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PURPOSE: To evaluate two commercial CT metal artifact reduction (MAR) algorithms for use in proton treatment planning in the head and neck (H&N) area.. METHODS: An anthropomorphic head phantom with removable metallic implants (dental fillings or neck implant) was CT-scanned to evaluate the O-MAR (Philips) and the iMAR (Siemens) algorithms. Reference images were acquired without any metallic implants in place. Water equivalent thickness (WET) was calculated for different path directions and compared between image sets. Images were also evaluated for use in proton treatment planning for parotid, tonsil, tongue base, and neck node targets. The beams were arranged so as to not traverse any metal prior to the target, enabling evaluation of the impact on dose calculation accuracy from artifacts surrounding the metal volume. Plans were compared based on γ analysis (1 mm distance-to-agreement/1% difference in local dose) and dose volume histogram metrics for targets and organs at risk (OARs). Visual ...
PURPOSE: To evaluate two commercial CT metal artifact reduction (MAR) algorithms for use in proton treatment planning in the head and neck (H&N) area.. METHODS: An anthropomorphic head phantom with removable metallic implants (dental fillings or neck implant) was CT-scanned to evaluate the O-MAR (Philips) and the iMAR (Siemens) algorithms. Reference images were acquired without any metallic implants in place. Water equivalent thickness (WET) was calculated for different path directions and compared between image sets. Images were also evaluated for use in proton treatment planning for parotid, tonsil, tongue base, and neck node targets. The beams were arranged so as to not traverse any metal prior to the target, enabling evaluation of the impact on dose calculation accuracy from artifacts surrounding the metal volume. Plans were compared based on γ analysis (1 mm distance-to-agreement/1% difference in local dose) and dose volume histogram metrics for targets and organs at risk (OARs). Visual ...
Right: Illustration of the "twinkling artifact." Shown in A and B are ultrasound images of a 2-mm stone inserted into an in vivo kidney. (A) scan in B-mode only; (B) color Doppler engaged. Note that the twinkling artifact shows a well defined stone (circled) while the B-mode image shows no obvious indication of a stone. (C) a stone is placed near a blood vessel and imaged in vivo; note that it is easy to distinguish between the stone exhibiting the twinkling artifact and regular blood flow. (D) photograph of the stone placed in the kidney ...
acquisition data storage and communication provide for the collection of reliable and useful inhome physiological data Artifacts arising from environmental experimental and physiological factors degrade signal quality and render the affected part of the signal useless The magnitude and frequency of these artifacts significantly increases when data collection is moved from the clinic into the home Signal processing advances have brought about significant improvement in artifact removal over the last number of years This paper reviews the physiological signals most likely to be recorded in the home documenting the artifacts which occur most frequently and which have the largest degrading effect A detailed analysis of current artifact removal techniques will then be presented An evaluation of the advantages and disadvantages of each of the proposed artifact detection and removal techniques with particular application to the personal healthcare domain is provided More Info Published in IEEE ...
ObjectiveThe objective of this study was to assess the accuracy of the quantitative measurements obtained using dual-energy computed tomography with metal artifact reduction software (MARS).MethodsDual-energy computed tomography scans (fast kV-switching) are performed on a phantom, by varying the nu
TY - CHAP. T1 - Reduction of movement artefacts in comparative 3D magnetic resonance (MR) breast imaging. AU - Undrill, Peter Edward. AU - Redpath, Thomas William. AU - Gilbert, Fiona Jane. PY - 1996. Y1 - 1996. KW - image registration. KW - magnetic resonance imaging. KW - breast imaging. KW - principal axes. KW - orthogonal polynomials. KW - pricipal axes. M3 - Chapter. SN - 0-8194-2085-9 VL - 2710. T3 - Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE). SP - 922. EP - 930. BT - Medical Imaging 1996. A2 - Loew, M H. A2 - Hanson, K M ER - ...
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TY - JOUR. T1 - Comparing the Performance of Popular MEG/EEG Artifact Correction Methods in an Evoked-Response Study. AU - Haumann, Niels Trusbak. AU - Parkkonen, Lauri. AU - Kliuchko, Marina. AU - Vuust, Peter. AU - Brattico, Elvira. PY - 2016. Y1 - 2016. N2 - We here compared results achieved by applying popular methods for reducing artifacts in magnetoencephalography (MEG) and electroencephalography (EEG) recordings of the auditory evoked Mismatch Negativity (MMN) responses in healthy adult subjects. We compared the Signal Space Separation (SSS) and temporal SSS (tSSS) methods for reducing noise from external and nearby sources. Our results showed that tSSS reduces the interference level more reliably than plain SSS, particularly for MEG gradiometers, also for healthy subjects not wearing strongly interfering magnetic material. Therefore, tSSS is recommended over SSS. Furthermore, we found that better artifact correction is achieved by applying Independent Component Analysis (ICA) in ...
A new method to reduce artifacts (MAR), produced by high-density objects, especially metal implants (MI), in X-ray CBCT is presented. MIs located in the field of view (FOV) result in artifacts influencing clinical diagnostics and treatments. The novel method reduces metal artifacts by virtually replacing MIs by tissue objects of the same shape. This corrected data can be reconstructed with significantly reduced artifacts. After reconstruction, the segmented 3D MIs were re-inserted into the corrected 3D volume. The method was developed for mobile C-arm CBCTs, where misalignments between original 2D data and forward projections must be adjusted before correction ...
Color interpolation is still the most used method for image upsampling, since it offers the simplest and therefore fastest algorithms. However, in recent years research concentrated on other techniques to counter the shortcomings of interpolation techniques (like color artifacts or the fact that interpolation does not take statistics into account), while interpolation itself has ceased to be an active research topic. Still, current interpolation techniques can be improved. Especially it should be possible to avoid color artifacts by carefully choosing the correct interpolation schemes. In this paper we derive mathematical constraints which need to be fulfilled to reach an artifact-free interpolation, and use these to develop an interpolation method which is basically a self-configuring cubic spline.. ...
Background: The aim of this study was to determine the impact of respiratory motion correction on SPECT MPI and on defect detection using a phantom assembly. Methods: SPECT/CT data were acquired using an anthropomorphic phantom with inflatable lungs and with an ECG beating and moving cardiac compartment. The heart motion followed the respiratory pattern in the cranio-caudal direction to simulate normal or deep breathing. Small or large transmural defects were inserted into the myocardial wall of the left ventricle. SPECT/CT images were acquired for each of the four respiratory phases, from exhale to inhale. A respiratory motion correction was applied using an image-based method with transformation parameters derived from the SPECT data by a non-rigid registration algorithm. A report on defect detection from two physicians and a quantitative analysis on MPI data were performed before and after applying motion correction. Results: Respiratory motion correction eliminated artifacts present in the ...
3-D optical coherence tomography (OCT) has been extensively investigated as a potential screening and/or surveillance tool for Barretts esophagus (BE). Understanding and correcting motion artifact may improve image interpretation. In this work, the motion trace was analyzed to show the physiological origin (respiration and heart beat) of the artifacts. Results showed that increasing balloon pressure did not sufficiently suppress the physiological motion artifact. An automated registration algorithm was designed to correct such artifacts. The performance of the algorithm was evaluated in images of normal porcine esophagus and demonstrated in images of BE in human patients.. ©2011 Optical Society of America. Full Article , PDF Article ...
The spinal cord is the main pathway for information between the central and the peripheral nervous systems. Non-invasive functional MRI offers the possibility of studying spinal cord function and central sensitisation processes. However, imaging neural activity in the spinal cord is more difficult than in the brain. A significant challenge when dealing with such data is the influence of physiological noise (primarily cardiac and respiratory), and currently there is no standard approach to account for these effects. We have previously studied the various sources of physiological noise for spinal cord fMRI at 1.5T and proposed a physiological noise model (PNM) (Brooks et al., 2008). An alternative de-noising strategy, selective averaging filter (SAF), was proposed by Deckers et al. (2006). In this study we reviewed and implemented published physiological noise correction methods at higher field (3T) and aimed to find the optimal models for gradient-echo-based BOLD acquisitions. Two general techniques were
To develop a no-reference video quality model, it is important to know how the perceived strengths of artifacts are related to their physical strengths and to the perceived annoyance. When more than one artifact is present, it is important to know whether and how its corresponding perceived strength depends on the presence of other artifacts and how perceived strengths combine to determine the overall annoyance. We study the characteristics of different types of artifacts commonly found in compressed videos. We create artifact signals predominantly perceived as blocky, blurry, ringing, and noisy and combine them in various proportions. Then, we perform two psychophysical experiments to independently measure the strength and overall annoyance of these artifact signals when presented alone or in combination. We analyze the data from these experiments and propose models for the overall annoyance based on combinations of the perceptual strengths of the individual artifact signals. We also test the ...
studies of the past are enhanced when an artifact is clearly associated with an intact archaeological context. Artifacts which lack a defined archaeological findspot or provenience have a greater potential to undermine the integrity of archaeological heritage in view of the possibility of admitting suspect artifacts into archaeological heritage. Looting is an illegal act that breaks the association between artifact and context. A looted artifact may be considered stolen property. Therefore, archaeological heritage that is looted is more likely to travel through illicit channels of distribution and/or exportation, which involve processes that may mask or confuse the identification of the artifact or its true findspot ...
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The aim of this study was to assess the potential of monoenergetic computed tomography (CT) images to reduce beam hardening artifacts in comparison to standard CT images of dental restoration on dental post-mortem CT (PMCT). Thirty human decedents (15 male, 58 ± 22 years) with dental restorations were examined using standard single-energy CT (SECT) and dual-energy CT (DECT). DECT data were used to generate monoenergetic CT images, reflecting the X-ray attenuation at energy levels of 64, 69, 88 keV, and at an individually adjusted optimal energy level called OPTkeV. Artifact reduction and image quality of SECT and monoenergetic CT were assessed objectively and subjectively by two blinded readers. Subjectively, beam artifacts decreased visibly in 28/30 cases after monoenergetic CT reconstruction. Inter- and intra-reader agreement was good (k = 0.72, and k = 0.73 respectively). Beam hardening artifacts decreased significantly with increasing monoenergies (repeated-measures ANOVA p , 0.001). ...
title,Fossil File Formats,/title, ,h1 align=center, Fossil File Formats ,/h1, The global state of a fossil repository is kept simple so that it can endure in useful form for decades or centuries. A fossil repository is intended to be readable, searchable, and extensible by people not yet born. The global state of a fossil repository is an unordered set of ,i,artifacts,/i,. An artifact might be a source code file, the text of a wiki page, part of a trouble ticket, or one of several special control artifacts used to show the relationships between other artifacts within the project. Each artifact is normally represented on disk as a separate file. Artifacts can be text or binary. In addition to the global state, each fossil repository also contains local state. The local state consists of web-page formatting preferences, authorized users, ticket display and reporting formats, and so forth. The global state is shared in common among all repositories for the same project, whereas the local state is ...
ePortfolio is a repository for digital artifacts that represent your learning. You may upload or create artifacts on any number of topics and at any stage of completion. An artifact may be a document, graphic, audio file, video file, presentation, or other form of digital media. You may upload files from a personal computer or storage device; import items from a course; link to a website; create an HTML file; fill out a form created by your institution; or record an audio file directly within ePortfolio.. Instead of viewing your artifacts as complete examples, consider them as ongoing projects and continuously revise them as you develop new skills and understandings. This way your portfolio is a true reflection of your skills and achievements.. ...
BACKGROUND: Magnetic resonance angiogram (MRA) of the brain is a widely employed non-invasive test to diagnose aneurysms. However, its overall accuracy is less than digital subtraction angiography and is prone to give false-positive or false-negative results. False-negative results can be seen with hemorrhage, lipoma, dermoid, posterior lobe of the pituitary gland, and the flow artifacts. PURPOSE: To describe the findings associated with false aneurysms in the anterior communicating artery on the time of flight MRA and review the physical principles behind this artifact. MATERIAL AND METHODS: This short series comprises of four patients whose MRA showed suspicious aneurysms in the region of the anterior communicating artery (ACOM) on time of flight MRA. RESULTS: Two patients underwent catheter angiogram and the other two patients had computed tomography angiogram. None of these cases proved to have aneurysms and normal anterior communicating arteries were seen in all the patients. The findings on the MR
In fMRI, activation is detected because of the blood oxygen level-dependent (BOLD) effect as deoxyhemoglobin concentration changes in regions of increased neuronal activity. T2*-weighted images are used to detect the BOLD effects in functional MR imaging (fMRI) mapping. However, the same T2* weighting, which forms the basis for signal intensity on fMRI, is also the source of potential susceptibility artifacts. The BOLD effect may not be detected in regions of the brain with large susceptibility artifacts, caused by internal static local field gradients that distort the image or attenuate the signal intensity (1-4). Susceptibility artifacts sufficient to reduce the BOLD effect occur at tissue interfaces such as that between air and brain, and affect the sensitivity of fMRI in the inferior lateral temporal lobes (including part of fusiform gyrus) and the inferior medial frontal lobes (medial orbital gyri and gyrus rectus) (2, 4, 5). In addition, susceptibility artifacts may occur secondary to ...
This quilt was for a trunk show for my work. It is one of my favorites I have done so far just because I am so in love with the fabric. The fabric line I used was "Garden Grove by Kim Diehl". The pattern is in a book called "Simply Fat Quarters" by Its so Emma. The pattern was called "Retreat". In case you are interested in checking out this quilt it is at Elaines Quilt Block in Cottonwood Heights, UT. There are a bunch of other quilts on display not only for this quilt show we did but also just a lot of lovely quilts around the shop. There are usually kits available for all of the quilts on display. I love how rich the colors are. This is a very fun pattern. The quilting that was done on this quilt is absolutely exquisite. I am so happy with how this quilt turned out. I brought 2 more quilts for this specific trunk show but unfortunately didnt take a picture before they were hung in the store. I look forward to bringing this quilt home ...
Examples of shared artifacts include Watson & Cricks Tinker-Toy DNA model. Each scientist would work on the model separately, then use grad students to carry the model around to his partner to express certain ideas. Both Compaq Computer and Southwest Airlines were reportedly established after their founders wrote their ideas down together on a table napkin, another shared artifact.. Both of these examples show an important factor in shared artifacts - if the shared artifact is not constrained then it will be too large or complex for the group to reach some measure of completion. Finishing the shared artifact really helps establish trust and the connections between the participants.. A shared artifact is also useful because flooding someone with information and terms gives no assurance that the recipient has gained knowledge of the subject. Instead, the act of creation confirms to both parties that the knowledge was successfully assimilated.. Another advantage to creating a shared artifact is ...
Autor: Kim, Kwang In et al.; Genre: Bericht; Online veröffentlicht: 2011; Open Access; Titel: Efficient Learning-based Image Enhancement : Application to|br/|Compression Artifact Removal and Super-resolution
MIME-version: 1.0 X-Mailer: Unknown (No Version) Content-type: multipart/alternative; boundary=Boundary_(ID_5HQm6aniGbkbsRDFTPmCng) --Boundary_(ID_5HQm6aniGbkbsRDFTPmCng) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Hello all. I could really use some help. Today, the pathologist called to say that she is seeing an artifact on the tissue. It looks like clusters of fine PCP organisms, only that they are not. Like someone took a very fine tip black marker and made circles around the cells. She said it is not on every slide. The slides she had me check were prostate needle bxs and an antrum bx. The only change in our routine has been that we are demonstrating a recycling system for alcohol and Xylene. I have not used the recycled product on the tissue processor or the H&E autostainer, but I have placed the recycled Xylene in our glass Coverslipper. I appreciate any and all comments. Thank you. Ryan Allan Memorial --Boundary_(ID_5HQm6aniGbkbsRDFTPmCng) Content-type: ...
Meaning what? -----Original Message----- From: David Orchard [mailto:[email protected]] Sent: Thursday, October 10, 2002 10:32 PM To: Cutler, Roger (RogerCutler); [email protected] Subject: RE: Artifacts Roger, The term artifact has been used in software for quite some time. Cheers, Dave -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of Cutler, Roger (RogerCutler) Sent: Thursday, October 10, 2002 6:35 PM To: [email protected] Subject: Artifacts I would like to propose the following glossary entry: Artifact - 1) A remnant of something that is dead and gone, as in The shard of pottery found in the Yucatan was an artifact of the high Mayan civilization; 2) A defect or error in something otherwise regular and useful, as in Sixty cycle interference is a common artifact in monitors sited too close to power sources. Perhaps you can add other meanings for the word? I think you should if you are going to insist on using it. Listening to ...
Spinal cord functional imaging allows assessment of activity in primary synaptic connections made by sensory neurons relaying information about the state of the body. However, reported human data based on gradient-echo techniques have been largely inconsistent, with no clear patterns of activation emerging. One reason for this variability is the influence of physiological noise, which is typically not corrected for. By acquiring single-slice resting data from the spinal cord with a conventional gradient-echo EPI pulse sequence at TR=200 ms (critically sampled) and TR=3 s (under-sampled), we have characterised various sources of physiological noise. In 8 healthy subjects, the presence of physiologically dependent signal was explored using probabilistic independent component analysis (PICA). Based on the insights provided by PICA, we defined a new physiological noise model (PNM) based on retrospective image correction (RETROICOR), which uses independent physiological measurements taken from the subject to
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): We propose a new measure, the method noise, to evaluate and compare the performance of digital image denoising methods. We first compute and analyze this method noise for a wide class of denoising algorithms, namely the local smoothing filters. Second, we propose a new algorithm, the non local means (NL-means), based on a non local averaging of all pixels in the image. Finally, we present some experiments comparing the NL-means algorithm and the local smoothing filters.
The purpose of this study was to quantify the effect of soft tissue artifact during three-dimensional motion capture and assess the effectiveness of an optimization method to reduce this effect. Four subjects were captured performing upper-arm internal-external rotation with retro-reflective marker sets attached to their upper extremities. A mechanical arm, with the same marker set attached, replicated the tasks human subjects performed. Artificial sinusoidal noise was then added to the recorded mechanical arm data to simulate soft tissue artifact. All data were processed by an optimization model. The result from both human and mechanical arm kinematic data demonstrates that soft tissue artifact can be reduced by an optimization model, although this error cannot be successfully eliminated. The soft tissue artifact from human subjects and the simulated soft tissue artifact from artificial sinusoidal noise were demonstrated to be considerably different. It was therefore concluded that the ...
Magnetic resonance imaging (MRI) is an imaging modality which provides good conditions for studies of flow and motion in the cardiovascular system. When using the phase contrast imaging technique, it is possible to perform velocity measurements in moving tissues and in blood. The acquired velocity data can be used for subsequent calculation of different parameters used for the assessment of cardiovascular function. These parameters rely on the accuracy and reproducibility of the velocity measurements.. This thesis includes an introduction to phase contrast imaging and how displacement artifacts may hamper the accuracy of velocity measurements using phase contrast imaging. A method for correction of this artifact was developed using the knowledge of the times at which velocity and spatial encoding are carried out in the pulse sequence. The elaboration of this correction method included modifications of a 3D phase contrast pulse sequence and development of post processing algorithms involving ...
CiteSeerX - Scientific articles matching the query: Image Denoising Methods for Tumor Discrimination in High-Resolution Computed Tomography
Corneal image (Fig. 1.c) with the smoothed pilot epithelial layer boundary overlaid. The second derivative plot of the pilot epithelial layer boundary is used to detect the regions of low-SNR for the epithelium excluding the center half of the image (Region B). A second derivative below 0 indicates that there is a positive inflection in the second derivative, which should not occur for normal cornea and thus indicates that the SNR may be low at this location. A second derivative below 0 in Region B often occurs near the central artifact due to the central artifact removal step which results in a linear interpolation between both sides of the central artifact ...
Mechanical Engineering and Green Manufacturing: The Comparison of Isotropic and Anisotropic Diffusion Techniques for Image Denoising
A few additional notes concerning adverse effects of eddy currents. . . .. Multiple eddy currents with different time constants always coexist. The most rapid eddy currents (with time constants on the order of a few hundred micro(μ)-seconds) are present in the RF coil and shield. These are responsible for the Nyquist N/2 artifact described above. Intermediate term eddy currents (on the order 1-100 milliseconds) typically originate in the walls of the cryostat or outer radiation shields and produce shading artifacts on fast (turbo) spin echo or gradient echo images. Eddy currents with long time constants (hundreds of milliseconds) often derive from the inner cryogen shields and produce frequency drifts in the main field. This may be manifest on images as insufficient fat or water suppression.. Eddy currents are particularly problematic in localized spectroscopy, where they cause broadened resonances and distorted line shapes, especially in short TE experiments. At times they may completely ...
Due to low radiation dose, cone-beam computed tomography is growing in importance. In image reconstruction, a stack of cross-sectional images can be recons
If you know what to look for, youll know what path to choose and how far down it to go.. Identifying and developing a sensitivity for the artifacts digital sharpening produces will help you choose a sharpening method and what settings to use during any stage of your sharpening workflow.. You can easily see the artifacts digital sharpening produces by overdoing it.. Here are the seven most common digital sharpening artifacts.. 1 Noise. 2 Exaggerated Texture. 3 Visible Light Halos. 4 Visible Dark Lines. 5 Loss of Highlight Detail. 6 Loss of Shadow Detail. 7 Increased Saturation. Each of these artifacts can be reduced in one or more ways.. Heres a list of options.. 1 Noise. Mask areas; consider an edge mask.. Raise Unsharp Masks Threshold.. Use High Pass sharpening.. 2 Exaggerated Texture. Mask areas; consider an edge mask.. Reduce Unsharp Masks Amount.. Use High Pass sharpening.. Filter the High Pass layer with blur or noise reduction.. 3 Visible Light Halos. Reduce Unsharp Masks Radius to ...
Definition of artifact in the Financial Dictionary - by Free online English dictionary and encyclopedia. What is artifact? Meaning of artifact as a finance term. What does artifact mean in finance?
Statewide program will celebrate and save the states inspiring historic items through a new micro-fundraising platformPHILADELPHIA - The Conservation Center for Art & Historic Artifacts (CCAHA) has opened a statewide call to libraries, museums, historic sites and archives to participate in a new program called Pennsylvanias Top 10 Endangered Artifacts. This initiative to save the states most significant artifacts seeks nominations of inspiring historic items
Bill Waters is a lucky man after stumbling across an old ledger book containing the original recipe for Dr. Pepper.. The Tulsa, Okla., man eventually discovered the book came from the Waco drugstore where Dr Pepper was invented and includes a recipe titled "D Peppers Pepsin Bitters.". When the 8 1/2-by-15 1/2 inch book of more than 360 pages goes up for auction at Dallas-based Heritage Auction Galleries on May 13, its expected to sell for between $50,000 to $75,000.. Waters discovered the book beneath a wooden medicine bottle crate in a Shamrock antiques store last summer. A couple months after buying it, he took a closer look as he prepared to sell it on eBay.. ...
News From Indian Country providing powwow and cultural information about Native American dance, music, Indigenous events and activities for Canada First Nations and United States tribes and Indian reservations.
The 3D representation of CT scans is widely used in medical application such as virtual endoscopy, plastic reconstructive surgery, dental implant planning systems and more. Metallic objects present in
Because of the recognized reduced accuracy of the stress ECG compared with stress imaging, many clinicians go directly to a stress imaging modality in the evaluation of patients with chest pain. From Bayesian analysis the value of the imaging modality over the stress ECG alone is highest in patients with medium probability for CAD. One of the drawbacks of performing stress perfusion imaging in this patient population is that scan artifacts may lead to further costly and unnecessary testing. A major source of artifact is soft tissue attenuation. Attenuation correction is a method that corrects for these artifacts on the stress images. It has the potential to increase the number of stress scans that can be interpreted as normal, thereby reducing procedure length, improving patient satisfaction and improving laboratory efficiency. Because few of these patients undergo coronary angiography, an alternative method to assess the safety and accuracy of stress-only imaging in this population is to ...
where width and height are the size of the texture. I am trying to do that on Windows with Amd graphic card.If I move the textured quad, scale the textured scale .. I see at the some changing location an artifact (horizontal or vertical lines).it seems my shader is very classical .. I dont know what I can do to avoid theses artifacts ...
p2 assumes that two artifacts with the same identifier and same version number are the same artifact. An artifact is made available to p2 by publishing the artifact to a repository, a process that also adds any metadata about the artifact. p2 comes with several publishers that know how to extract metadata for bundles, features, and products. Most Eclipse build systems (e.g., Tycho, Buckminister, PDE/Build) can automatically publish the artifacts during a build. Other publishers could be created using p2s APIs to handle other types of artifacts (e.g., Windows DLLs). The p2 Director is responsible for installing a set of artifacts. The Director uses the metadata about an artifact, called an installable unit or IU, to determine how the artifact should be installed and to include any dependencies of those artifacts. Thus installing a product requires installing its associated features, which requires installing the specified bundles; installing the product also requires installing the ...
I recently took a mystery quilt class. It was a lot of fun. I had no idea how the quilt was going to turn out and actually look until I was almost done with it. It was an all day class and we had a great teacher. I learned a lot of things in this class and a few new tricks I hadnt thought of before. Thanks to Deb for making our class great and being a great teacher. This quilt is gorgeous. She came up with the pattern for the quilt herself. All I did was pick the fabrics and sew them how she instructed and it turned out amazing. I love the colors that I chose for this quilt. I havent finished it yet. This is just the front because I have to save up some money to get this one machine quilted and I am waiting for the back to be ordered. It is a gorgeous quilt and I cant wait to put this one to use. I have 3 other quilts I am also in the process of finishing. I have been very busy quilting lately. It has been a lot of fun and something that my husband and I also enjoy doing together. I look ...
Create an ultra-modern styled bedroom with these chic quilt cover sets. Crafted from nothing but 100% pure cotton, these quilt covers will make a stylish new home for your favourite quilt or doona. Designed with a reactive printing technique on both sides, these quilt covers offer an alternative look when flipped over.. These quilt covers are not only stylish; they are hypo-allergenic, and dust and mite resistant. They are also free from any harsh chemicals, great for those with sensitive skin. Dont spend another night under another boring quilt cover - spice things up! Were sure you will love our stylish printed quilt covers.. Care instructions:. ...
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In Matlab (Mathworks, MA, USA), we set EEG sample values to zero in an interval disrupted by the TMS pulses (−2 to 65 msec in relation to TMS onset). Next, we interpolated (using a spline interpolation) the EEG samples set to zero (using data 250 msec before and after the interval set to zero), without affecting EEG samples outside this 67-msec interval (the interpolated segment was of the same order as the rest. of the data), so we were able to further filter the data (Sadeh et al. 2011). After initial low-pass filtering (100 Hz) Inhibitors,research,lifescience,medical during recording, additional filters were applied after removal of the TMS artifact and data interpolation. High-pass filtering (0.5 Hz), additional low-pass filtering (30 Hz), and a notch filter (50 Hz) were used (doing the filtering before artifact removal would propagate the substantially stronger TMS artifact through. the data). To limit the spreading of the interpolated data, we used an infinite impulse response (IIR) ...
When a repository knows that an artifact exists and knows the ID of that artifact, but it does not know the artifact content, then it stores that artifact as a "phantom". A repository will typically create a phantom when it receives an igot card for an artifact that it does not hold or when it receives a file card that references a delta source that it does not hold. When a server is generating its reply or when a client is generating a new request, it will usually send gimme cards for every phantom that it holds.. A cluster is a special artifact that tells of the existence of other artifacts. Any artifact in the repository that follows the syntactic rules of a cluster is considered a cluster.. A cluster is line oriented. Each line of a cluster is a card. The cards are separated by the newline ("\n") character. Each card consists of a single character card type, a space, and a single argument. No extra whitespace and no trailing or leading whitespace is allowed. All cards in the cluster must ...
This new correction method of stimulation artifact will enable investigators to better analyze early CCEP components and infer direct effective connectivity in future CCEP studies.
The term "artifact" currently does not have a formal definition within the domain of cyber/digital forensics, resulting in a lack of standardized reporting, linguistic understanding between professionals, and efficiency. In this paper we propose a new definition based on a survey we conducted, literature usage, prior definitions of the word itself, and similarities with archival science. This definition includes required fields that all artifacts must have and encompasses the notion of curation. Thus, we propose using a new term - curated forensic artifact (CuFA) - to address items which have been cleared for entry into a CuFA database (one implementation, the Artifact Genome Project, abbreviated as AGP, is under development and briefly outlined). An ontological model encapsulates these required fields while utilizing a lower-level taxonomic schema. We use the Cyber Observable eXpression (CybOX) project due to its rising popularity and rigorous classifications of forensic objects. Additionally, ...
What happens to a technology artifact after it is adopted? It has to evolve within its particular context to be effective; otherwise, it will become part of the detritus of change, like the many genes without a discernible function in a living organism. In this paper, we report on a study of post-adoptive behavior that examined how users modified and innovated with technology artifacts. We uncovered three types of modifications made to technology artifacts: personalization, customization, and inventions. Personalization attempts are modifications involving changes to technology parameters to meet the specificities of the user; customization attempts adapt the technology parameters to meet the specificities of the users environment; and inventions are exaptations conducted to the technology artifact. This paper presents a grounded theoretic analysis of the post-adoptive behavior based on in-depth interviews with 20 software engineers in one multi-national organization. We identify a life-cycle ...
Buckminster allow artifacts to be variable. Variability is achieved through artifact attributes and by actions that can produce artifacts attributed in different ways. A trivial example of this is a compiler that can compile the same source, either stripped and optimized (distribution), or with symbols and not optimized (for debug purpose). Rather than having two artifacts and two actions (and two of every required artifact, etc.) attributes can be set in the outmost action, and these are propagated all the way. A attribute can be set in the artifact declaration or stem from the action that produces the artifact. The initial artifact of a cspec is never variable since it does not stem from an action. The more derived an artifact is, the less variable it becomes. A pre-built binary is typically not variable at all. If an artifact defines that an attribute stems from the producing action, then that action must somehow provide the attribute. It can do this either by declaring that it is the ...
ARTifacts, an Arts & Antiques Emporium located in historic downtown Clarksville, TN, opened in December, 2008. ARTifacts features more than 40 local artists, artisans, and antique dealers. The artists at ARTifacts demonstrate "expertise" in all of the fine arts--from oils and pastels to acrylics and pottery. ARTifacts Artisans work with wood and glass, as well as fabric and yarn. And our antique vendors carry everything from nick-nacks & collectibles to fine furnishings & primitive pieces ...
ARTifacts, an Arts & Antiques Emporium located in historic downtown Clarksville, TN, opened in December, 2008. ARTifacts features more than 40 local artists, artisans, and antique dealers. The artists at ARTifacts demonstrate "expertise" in all of the fine arts--from oils and pastels to acrylics and pottery. ARTifacts Artisans work with wood and glass, as well as fabric and yarn. And our antique vendors carry everything from nick-nacks & collectibles to fine furnishings & primitive pieces ...
Motion during diffusion-weighted imaging (DWI) introduces phase errors that can cause significant artifacts in brain images. One method of correcting these errors uses additional navigator data to measure the phase corruptions. Standard navigator methods correct for rigid-body motion but cannot correct for nonrigid deformations of the brain related to the cardiac cycle. This work derives a generalized reconstruction that corrects for nonrigid motion based on a least-squares formulation. Since this reconstruction has the disadvantage of being computationally expensive, an approximation is presented, called a refocusing reconstruction. The refocusing reconstruction is both efficient and straightforward. Each readout is multiplied in image space by the phase conjugate of the navigator image, and these rephased readouts are then summed. The conditions under which the refocusing reconstruction is sufficient are considered and methods to improve the quality of refocused images are discussed. In particular,
The system and method reduces the quantization artifacts in the addition and removal of a digital watermark to and from a selected resolution image of a hierarchical image storage system where the watermark removal record is placed in a higher resolution image component. For those applications where preserving the image quality of a higher resolution image component is more critical than preserving the image quality of a lower resolution image component, the low-resolution image is modified according to the teachings of the present invention to minimize and in many cases eliminate the quantization artifacts at the higher resolution component.
We provide a mathematical understanding for artifacts in QSM, particularly streaking artifacts. 1) The local field data can be decomposed into a dipole-compatible part and a dipole-incompatible part. 2) In spatially continuous space, the streaking-free susceptibility solution is obtained from the dipole-compatible field data only, and the dipole-incompatible data leads to artifacts defined by a wave propagator with z as time, specifically, streaking artifacts from granular noise and shadow artifacts from white matter noise error. Although it is not known how to filter out such dipole-incompatible data, its artifacts can be suppressed in regularization-based Bayesian methods such as MEDI, which can efficiently penalize streaking artifacts. k-space-truncation-based methods that generate additional dipole-incompatible data near the zero cone amplify streaking artifacts ...
This ECG is being offered as a teaching aid, to show how artifact can affect our ability to interpret an ECG, and to encourage our students to be meticulous in obtaining a good-quality tracing whenever possible. If there are insurmountable obstacles preventing a technically good tracing, the circumstances should be written on the ECG. Such obstacles could be: seizures, tremors, vigorous resuscitation efforts underway, or patient not cooperating. When an ECG has obvious signs of artifact, the causes of the artifact should be corrected and the ECG repeated. Teach your students to strive for perfection. Even though we cannot obtain "perfection", if we settle for sloppiness, it will breed more sloppiness. This ECG has some intriguing abnormal signs, but we should wait for a better tracing before attempting a firm interpretation. We do see abnormal ST segments and T waves in the high lateral leads I and aVL. These, along with the high voltage in aVL, suggest left ventricular hypertrophy with strain. ...
LASIK is one of the most popular corrective eye surgeries. Contact your optometrist to find out if you are a candidate and to learn more about the surgery.
Hotel Sedgewick Artifacts - Ghostbusters: Hotel Sedgewick Artifacts are found in the locations described below.     The serving tray is the first artifact you find and it is also t...
I dont know how to describe this, so Ill just show a few screenshots. Im getting strange green artifacts all over my footage from my Kodak Playsport
Thats what I was thinking too. Ive only seen those strange little artifacts when using less than 64x64 tiles with alpha in them. Like you said, for small stuff, you gotta clear the CGContext first before loading the image from disk into memory. Dont know how theyd show up for larger stuff, but Id put my money on un-initialized memory ...
https://issues.apache.org/jira/browse/HBASE-18838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16291318#comment-16291318 ] Appy commented on HBASE-18838: ------------------------------ bq. v3: Moving hadoop-minicluster to test scope fixes most everything else (*) Guessing hadoop got rid of htrace-core from their deps too and that testing against hadoop3 passes locally (?) Few minor things: - patch is adding lines with 0 indent. (i) - Since you introduced shaded.prefix ((y)), lets replace old redundancies with it too. {quote} - ,artifactId,servlet-api,/artifactId, + ,artifactId,javax.servlet-api,/artifactId, {quote} Add a separate exclusion, jic. Or verify that this doesnt add servlet-api jar to tars. Although not an issue right now since we build against 2.7 for release (right(?)), might surface when 2.x goes away. (festive time, enjoy the colors :) ) , shaded artifacts are incorrect when built against hadoop 3 , ...
In this work we present a method based on singular spectrum analysis to remove ocular artifacts (EOG) from an Electroencephalogram (EEG). After embedding the EEG signals in a feature space of time-delayed coordinates, the data are clustered and the principal components (PCs) of each cluster are computed. We assume that the EOG artifact is associated with the PCs belonging to largest eigenvalues. We incorporate a Minimum Description Length (MDL) criterion to estimate the number of eigenvalues which correspond to the EOG artifact. The extracted EOG signal is subtracted from the original EEG signal to obtain the corrected EEG signal we are interested in. ...
The above steps are designed to deal with systemic issues. For local problems, such as brief movement artifacts, another set of techniques may be applied. If there is a segment of data during which it is not possible to see any peaks clearly assignable to cardiac R-waves, it may be best to remove the affected region from analysis. To do this without affecting the relative timing of all other segments of the data, use the I-beam tool to select the period from the beginning to the end of the artifact. Preferably have the two edges be close to the ECG baseline (which should be zero). Then choose "Transform > Math Functions > Connect Endpoints." This will replace the data in the selected area with a line that literally connects the endpoints of the selected area. If instead there is an R wave but it is obscured because motion artifact brought it down or made adjacent sections of the signal large, selecting an area containing the R-wave (or adjacent areas) and using "Transform > Waveform Math" may ...
Not long ago I reviewed the Kindle Fire version of Mahjongg Artifacts. Now we get a look at the sequel, which had found tremendous success as one of the most
1This feature is 510(k) pending. Not available for sale in the U.S.. 2iMAR is designed to yield images with a reduced level of metal artifacts compared to conventional reconstruction if the underlying CT data is distorted by metal being present in the scanned object. The exact amount of metal artifact reduction and the corresponding improvement in image quality achievable depends on a number of factors, including composition and size of the metal part within the object, the patient size, anatomical location and clinical practice. It is recommended, to perform iMAR reconstruction in addition to conventional reconstruction.. 3In clinical practice, the use of ADMIRE may reduce CT patient dose depending on the clinical task, patient size, anatomical location, and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic image quality for the particular clinical task. 4In clinical practice, the use of SAFIRE may reduce ...
Fundamentals of MRI including signal-to-noise ratio, resolution, and contrast as dictated by physics, pulse sequences, and instrumentation. Image reconstruction via 2D FFT methods. Fast imaging reconstruction via convolution-back projection and gridding methods and FFTs. Hardware for modern MRI scanners including main field, gradient fields, RF coils, and shim supplies. Software for MRI including imaging methods such as 2D FT, RARE, SSFP, spiral and echo planar imaging methods. Fundamental tradeoffs of tailoring hardware and pulse sequences to specific applications. The modern MRI toolbox will be introduced, including selecting a slice or volume, fast imaging methods to avoid image artifacts due to physiologic motion, and methods for functional imaging. The fundamentals of MRI image artifacts (motion, magnetic susceptibility variations, RF field variations) will also be covered. The last part of the class will present emerging research opportunities and concomitant engineering research ...
Egypt has requested the return of a bust of Nefertiti and other artifacts from European museums, a move motivated as much by politics as by culture.
A method and apparatus for processing images received on an image sensor of rectangular configuration bounded by four outer edges and including a plurality of pixel elements arranged in a rectangular matrix includes the following operations: A. locating an initial rectangular-matrix region consisting of pixel elements determined to be free of an artifact; B. sequentially testing each pixel element along two contiguous outer edges of the image sensor, starting from the initial rectangular-matrix region, to determine whether the pixel value of the tested pixel element is sufficiently large to indicate the probability of an artifact, and for each such pixel element found to have such a pixel value, replacing its pixel value with another having a relation to the pixel value of its closest neighbours found to be free of an artifact, thereby cleaning the respective pixel element; and C. cleaning in a similar manner each of the remaining pixel elements.
In accordance with the distortion correction method for an X-ray radiograph diagnosis device, the distortion center of the X-ray image is determined by use of a plate-shaped object having a circular marker M and a marker center M0. On the basis of the positions of the sample points M1 through M4 upon the circular marker M, the distortion center is inferred. Further, a grid marker pattern is used to determine the magnitudes of pincushion distortion at respective distances from the distortion center. The correction coefficients for correcting the spool distortion at respective distances from the distortion center are determined on the basis of the relationship between the physical and displayed distances from the marker center M0 to the sample points.
Most gross physiologic motions (respiration, swallowing, cardiac pulsation) occur over time frames of a hundred milliseconds to several seconds. Because these motions are slow in relation to the frequency-encode sampling interval, they typically produce only a small amount of spatial blurring locally in the frequency-encode direction. Conversely, since the phase sampling interval is generally equal or longer than the period of most physiologic motions, artifacts will be more prominent in this direction. Furthermore, these artifacts will be propagated in the phase-encode direction regardless of whether the physiologic motion has occurred in the frequency-encode, phase-encode, or slice-select directions ...
Our 2010 Artifacts from the Future are new, thought-provoking visual representations of possible responses to the challenge of transforming bodies and lifestyles. These artifacts offer plausible depictions of health interventions at the scale of bodies, networks, and environments that will enhance our capacity for well-being. You will be able to use these artifacts to jump-start strategic thinking in your organization and ideate other possibilities. If you have any questions please contact Dawn Alva or Neela Nuristani. ...
Diffusion-weighted imaging (DWI) is known to be prone to artifacts related to motion originating from subject movement, cardiac pulsation and breathing, but also to mechanical issues such as table vibrations. Given the necessity for rigorous quality control and motion correction, users are often left to use simple heuristics to select correction schemes, which involves simple qualitative viewing of the set of DWI data, or the selection of transformation parameter thresholds for detection of motion outliers. The scientific community offers strong theoretical and experimental work on noise reduction and orientation distribution function (ODF) reconstruction techniques for HARDI data, where postacquisition motion correction is widely performed, e.g., using the open-source DTIprep software (Oguz et al., 2014), FSL (the FMRIB Software Library) (Jenkinson et al., 2012) or TORTOISE ( Pierpaoli et al. , 2010). Nonetheless, effects and consequences of the selection of motion correction schemes on the ...
I suppose this is a good follow-up to the post on Grays Anatomy. (The study of genetics is the new study of anatomy, right?) The image above is a quilt that is designed to show a YAP genomic sequence: "the Y alu polymorphism sequence of an Italian male is encoded in this quilt. The quilt is made of shot silk, which reflects light differently depending on the orientation of the weave and the viewer." The quilt is by Beverly St. Clair, a psychiatrist who is also a quilter, and more explanation of her method and how to read the quilt can be found on her website ...
The Event FIVE Years in the Making! Thirteen mystical Artifacts, including the Witchblade, the Darkness and others, guide the fate of the Top Cow Universe. For centuries, its been whispered that bringing together all 13 Artifacts would herald mankinds destruction. But a mysterious figure has been manipulating events, laying plans to put Armageddon into motion. The final phase begins here, with the abduction of Hope, the daughter of Sara Pezzini and Jackie Estacado. What ensues will remake the entirety of the Top Cow Universe, from the Witchblade and the Darkness, to the Angelus, Magdalena, and even Cyberforce. Artifacts #1 is the perfect place for faithful readers to see their loyalty pay off, and for new readers to experience the Top Cow universe.. ...
This blog contains posts about quilting that includes pictures of finished projects. It also includes information about the quilt guilds, clubs and groups that I am involved with and the activities, projects and events that are put on by these groups. I also give my thoughts and commentary on quilt books, quilt collecting and other related quilt topics from personal experience, knowledge and research. I also include stories and musings about my family, my faith and various parts of my life.
https://issues.apache.org/jira/browse/IVY-736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Xavier Hanin updated IVY-736: ----------------------------- Fix Version/s: (was: 2.0) , makepom ignores artifact type in ivy.xml and hardcodes jar in the output pom , ------------------------------------------------------------------------------ , , Key: IVY-736 , URL: https://issues.apache.org/jira/browse/IVY-736 , Project: Ivy , Issue Type: Bug , Components: Ant , Affects Versions: 2.0.0-beta-1 , Environment: Windows XP, Java 5 , Reporter: Carlton Brown , Priority: Minor , , Im using ,ivy:makepom, to generate pom files for a tarfile. Even though ivy.xml declares the package type as tar, the makepom task sets the packaging type to jar: , Input ivy.xml file fragment: , ,info organisation="myorg" module="hello-package" revision="1.0"/, , ,publications, , ,artifact name="hello-package" type="tar" ext="tar"/, , ,artifact name="hello-package" type="pom" ext="pom"/, , ...
Our Gaylord Archival® E-flute Deep Lid Artifact Box provides a cost-effective storage solution to open-shelf artifact preservation. The strong, buffered corrugated box is ideal for housing metal, wood, ceramics and plastics.
Removes negative effects from artifacts and balances them accordingly. IMO this balances artifacts for use with degradation. 100% compatible with any other mod as long as it doesnt change the artifact files. Compatible with version 1.4.22.
Creation of a new artifact instance using a supplied uri specification. An artifact uri contains the protocol identifier, an optional type, a group designator, a name, and an optional version identifier. The following represent valid artifact uri examples:. ...
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The principal techniques available all require tradeoffs between signal linearity, signal-to-noise, spatial resolution, temporal resolution, and artifacts.. Spoiled-GRE methods are probably the most popular and widely used at present, especially at 3T. Typical imaging parameters might be TR/TE/FA = 2/1/10° at 150 ms per section. Due to the low flip angle, spoiled-GRE sequences have the lowest signal-to-noise The major advantage of this method is reduced motion and blood flow artifacts. Balanced-SSFP methods (e.g. FIESTA, TrueFISP) produce the highest signal-to-noise of the major techniques. Typical imaging parameters would be similar to the spoiled-GRE technique but with a much higher flip angle (e.g. 50° instead of 10°). Major disadvantages include off-resonance artifacts ("moiré pattern") and frequency shifts induced by the gadolinium bolus. These features currently restrict the use of b-SSFP sequences to 1.5T and below.. Hybrid echo-planar/gradient echo techniques permit the fastest image ...
US has been widely applied as a first-line diagnostic technique in differentiating malignant and benign tumors based on the evaluation of angiogenesis and the growth of irregular vascular structures (16,17). Compared with magnetic resonance imaging and contrast-enhanced US, Doppler US has the advantages of being simpler, more cost-effective and more risk-free. CDFI, one of the most widely used US techniques, provides valuable data for evaluating blood flow, but with limitation in detecting vessels ,0.1 mm, as CDFI is generally associated with data loss due to movement artifacts attributed to the single-dimension filter (18). Due to the advances in US techniques, SMI is a pioneering technique that has the ability to visualize lower-speed bloodstream without motion artifacts (7). This advantage has been widely reported in the analysis of microvascular flow within thyroid nodules (19), testicular (20) and hepatic tumors (21). Multiple studies support the efficacy of SMI in specifically visualizing ...
This case demonstates an artifact associated with post-emission transmission imaging (i.e., transmission imaging that is performed after the patient has been injected with FDG). Post-emission transmission imaging is commonly performed PET scanners that utilize rotating Germanium-68 rod sources for transmission imaging. The transmission imaging data are used for for attenuation correction of the emission images. Although such transmission data sets are always "contaminated" with emission data (unless an explicit correction for this is applied to the transmission data), the effect is usually small. In the case of very "hot" tumors (such as in this patient), the large amount of activity within the lesion leads to an underestimation of the attenuation value of the lesion; in this case, the transmission image shows the majority of the lesion to have an attenuation value similar to that of lung rather than that of soft tissue. Accordingly, the emission image is undercorrected, and the measured SUV in ...
In this study, we aimed to quantitatively assess the cervical cord damage in patients with myelitis by using DTI at 3T. Image blurring and susceptibility-related distortions are known limitations of single-shot EPI DTI, mainly related to its long readout time in the phase-encoding direction. Reduced FOV techniques allow the reduction of susceptibility artifacts.20 In this study, we used a rFOV technique that included both inner volume excitation and outer volume suppression. Reducing the FOV in the phase-encoding direction was particularly suitable for imaging of the spinal cord and led to a drastic shortening of the EPI readout train length. In our study, the EPI readout train was shortened to 35 phase-encoding lines with a TE of 38.7 ms, explaining reduced distortions. With the aim of reducing motion-related artifacts, we also performed a prospective gating.21,22. Region-of-interest measurements are commonly achieved for the quantitative assessment of the spinal cord with DTI, in healthy ...