Loading...
  • diagnostic
  • CIRS technology offers superior tissue simulation Dosimetry Verification Phantoms by covering a wider range of energy levels from diagnostic to therapeutic. (itnonline.com)
  • magnetic
  • EEGs provide millisecond measurements of brain activity, though they do not pinpoint active areas as precisely as other techniques, such as functional magnetic resonance imaging (fMRI). (kurzweilai.net)
  • In this paper we propose a web-based approach for quick visualization of big data from brain magnetic resonance imaging (MRI) scans using a combination of an automated image capture and processing system, nonlinear embedding, and interactive data visualization tools. (frontiersin.org)
  • vessel
  • Here, a validation study is reported examining accuracy of the method using mathematically generated phantoms with different levels of fuzziness, overlap, scale, resolution, noise, and geometric coupling and MDCT images of pulmonary vessel casting of pigs. (spie.org)
  • fluorescence
  • A. Godavarty, E. M. Sevick-Muraca, C. Zhang, and M. J. Eppstein, "Fluorescence-enhanced optical imaging on large phantoms: Depth studies," in Frontiers in Optics , OSA Technical Digest (CD) (Optical Society of America, 2003), paper WE3. (osapublishing.org)
  • Optical imaging (OI) techniques such as bioluminescence and fluorescence imaging have been widely used to track diseases in a non-invasive manner within living subjects. (plos.org)
  • While OI generally detects low energy light (visible or near-infrared light) emitted from bioluminescence or fluorescence probes, radioactive molecular probes are traditionally imaged with PET, SPECT or gamma (γ) cameras that detect high energy γ rays . (plos.org)
  • We also determine targeted fluorescence signal on both systems for blinded surgical phantom dissection by a surgeon. (spie.org)
  • simulation
  • The value of a standardized simulation phantom to test and compare reconstruction methods for cardiac imaging has become evident during last years. (ismrm.org)
  • optical
  • Images in the polydisperse medium are retrieved for values of optical thickness less than those of the large-sized monodisperse medium. (osapublishing.org)
  • Composition of optical phantoms, including scattering and absorbing agents, is discussed in the context of their specific application. (spie.org)
  • This pioneer work provides a solid foundation of using PET radioisotopes for optical imaging. (plos.org)
  • Our study further evaluated a variety of radionuclides (β + , β − and γ emitters) for optical imaging. (plos.org)
  • bone
  • Schulz B, Kuehling K, Kromen W et al (2012) Automatic bone removal technique in whole-body dual-energy CT angiography: performance and image quality. (springer.com)
  • signal
  • The k-space signal for the 4D phantom can be evaluated analytically and sampled accordingly to any chosen k-space trajectory or encoding scheme. (ismrm.org)
  • quality
  • When technologists report a poor image quality problem, they often use subjective terminology such as mushy, grainy and splotchy. (conquestimaging.com)
  • There are several tests that need to be performed when verifying the image quality during a service call. (conquestimaging.com)
  • In summary, image quality is a difficult problem to define and troubleshoot. (conquestimaging.com)
  • By using these tests periodically we are able to evaluate degradation of image quality over time as well as test the quality during a service call. (conquestimaging.com)
  • We have investigated the effect of size distribution of aqueous solutions of monodisperse and a mixture of polydisperse scatterers of two different sizes on the image quality using linear and circularly polarized light. (osapublishing.org)
  • Circularly polarized light improves image quality of polydisperse scatterers. (osapublishing.org)
  • We demonstrate these approaches using multiple examples from over 10,000 data sets including (1) quality control measures calculated from phantom data over time, (2) quality control data from human functional MRI data across various studies, scanners, sites, (3) volumetric and density measures from human structural MRI data across various studies, scanners and sites. (frontiersin.org)
  • This is particularly true for the neuroimaging community, where researchers commonly rely on the visual inspection of individual images as their primary means of quality control (QC). (frontiersin.org)
  • We then scanned the phantoms in dual-energy mode using matching image-quality reference settings. (springer.com)
  • Quantitative analysis of image quality showed no statistically significant difference in image quality between the single-energy and dual-energy scans. (springer.com)
  • There was no clinically significant difference in image quality by visual assessment. (springer.com)
  • female
  • As some of you who have been following the title so far, you may have noticed that Phantom Breaker contains mostly female fighters, but these new images show a fight between a male fighter named Ren who is apparently a gauntlet user and one of the female fighters named Itsuki who wears a maid uniform and battles with a large hammer. (capsulecomputers.com)
  • Application
  • The main issues of the registration algorithms in an OR application are, on one hand, the lack of the initial guess of the registration transformation - the images to be registered may be completely independent- and, on the other hand, the multimodality of the data. (actapress.com)
  • test
  • Voytek put electrodes on the scalps of six stroke patients as well as six controls with normal prefrontal cortex function, and showed each patient a series of pictures to test his or her ability to remember images for a brief time, so-called visual working memory. (kurzweilai.net)
  • evaluation
  • Jiang XY, Zhang SH, Xie QZ et al (2015) Evaluation of virtual noncontrast images obtained from dual-energy CTA for diagnosing subarachnoid hemorrhage. (springer.com)
  • systems
  • In particular, systems and method are provided for a phantom including a pattern plate having a plurality of passages and a plurality of channels sequentially interconnecting each of the plurality of cylindrical cavities. (google.ca)
  • accuracy
  • Experimental results show that 92% - 98% accuracy is achieved using only one seed for each object in phantoms while 94.4% accuracy is achieved in MDCT cast images using ten seeds for each of A/V trees. (spie.org)