• To quantitatively compare condylar morphology using cone beam computed tomography (CBCT) and multislice spiral computed tomography (MSCT) virtual three-dimensional surface models. (nih.gov)
  • Objective: To compare a radiation dose obtained during standard digital radiography, tomosynthesis, and multislice spiral computed tomography (MSCT). (bvsalud.org)
  • 1 Alternatively, cone beam computed tomography (CBCT) has demonstrated utility, with higher spatial resolution, smaller exposure, and lower cost compared to CT, but it still lacks contrast accuracy 2 and evidence-based guidelines for a stan- dardized protocol. (9lib.co)
  • The use of cone beam computed tomography (CBCT)-based tooth segmentation and replica fabri- cation may help to enhance therapeutic outcomes. (9lib.co)
  • AB The measurements from registered images obtained from Cone Beam Computed Tomography (CBCT) and a photogrammetric sensor are used to track three-dimensional shape variations of orthodontic patients before and after their treatments. (sedentexct.eu)
  • Comparison between cone-beam and multislice computed tomography depicting mandibular neurovascular canal structures. (sedentexct.eu)
  • AB OBJECTIVE: The most common diagnostic imaging modalities for cross-sectional imaging in dental implant planning are currently cone-beam computed tomography (CBCT) and multislice CT (MSCT). (sedentexct.eu)
  • Aim: To evaluate the position, presence, appearance and extent of various anatomical landmarks in the mandibular interforaminal region of Brazilian patients using cone-beam computed tomography (CBCT). (bvsalud.org)
  • Cone-beam computed tomography (CBCT) is a relatively new imaging modality that provides a detailed evaluation of important bony structures 5 . (bvsalud.org)
  • This article describes the principles and evolution of multislice CT (MSCT), including conceptual differences associated with slice definition, cone beam effects, helical pitch, and helical scan technique. (snmjournals.org)
  • Today, computed tomography is the best imaging modality to detect stenoses in patients with intermediary pre-test probability where a coronary angiography is not immediately indicated,' according to Professor Dr Gabriele A Krombach, Department Director at the Clinic of Diagnostic and Interventional Radiology at University Hospital Giessen and Marburg (UKGM). (healthcare-in-europe.com)
  • Recent developments of multislice computed tomography (MSCT) have made non invasive coronary angiography reliable for selected patients and new software facilitates truly volume measurements without geometrical assumptions. (nih.gov)
  • In the population of patients referred to our laboratory for a conventional MSCT coronary angiography, 40 individuals without CD (Normal group) and 80 patients with CD (CD group) were prospectively selected. (nih.gov)
  • This MSCT study provides normal values of LA and LAA volumes for patients who underwent MSCT coronary angiography and suggests that MSCT is helpful to assess the changes of LA volumes related to various CD. (nih.gov)
  • The hospital has a stereotactic microelectrode stimulator (cytoknife), magnetic resonance imaging (MRI), multi-slice spiral CT (MSCT), digital X-ray camera (DR), PET-CT tumor radiotherapy equipment, and digital subtraction heart Advanced large-scale medical equipment such as angiography system (DSA), single photon emission computed tomography (SPECT), color Doppler diagnostic instrument, and large-scale biochemical analyzer. (schneider.com.cn)
  • The purpose of this work was to provide an intraindividual comparison of angiographic CT (ACT) and multisection CT (MSCT) in lumbar myelographic imaging and to evaluate possible benefits of ACT, which is a further development of rotational angiography providing image data of high spatial and CT-like contrast resolution. (ajnr.org)
  • Computed tomography (CT) is the modality of choice for many diagnostic issues. (healthcare-in-europe.com)
  • Material and Methods: Life-size full body pediatric anthropomorphic mannequin phantom was examined with a Fujifilm FDR Ac Selerate 200 X-ray diagnostic apparatus and a Toshiba Aquilion Prime 64 computed scanner using the Piranha dosimetry equipment, as well as Gammex planar target, for comparison of the resolution of the apparatus. (bvsalud.org)
  • Computed tomography (CT) for diagnostic imaging of the prostate has been studied in the early days of this method in the late 70's and the 80's but has received little attention in the international medical literature of the last years (2-7). (ispub.com)
  • MSCT usage is also redefining diagnostic workup of renal lesions and facilitating renal cell cancer staging. (diagnosticimaging.com)
  • An adequate diagnostic quality was only assigned to 80% of the ACT acquisitions compared with 97% of the MSCT acquisitions. (ajnr.org)
  • Radiographic myelography and postmyelographic CT using multisection CT (MSCT) scanners are well-established diagnostic procedures in degenerative or traumatic lumbar spine disease. (ajnr.org)
  • The purpose of the study presented here was to test the practicability and the diagnostic features of myelographic section imaging by ACT in comparison with MSCT to verify a possible added diagnostic value of ACT and to provide first evidence about the feasibility of substituting myelographic MSCT with ACT. (ajnr.org)
  • The sample consisted of secondary data analyses of CBCT and MSCT scans obtained for clinical purposes from 74 patients treated with condylar resection and prosthetic joint replacement. (nih.gov)
  • Across-subject models were approximated and voxel-based registration was performed between homologous CBCT and MSCT images, making it possible to create average CBCT- and MSCT-based condylar models. (nih.gov)
  • One sample t-test showed that mean differences between each set of paired CBCT- and MSCT-based models were not clinically significant (P = .411). (nih.gov)
  • However, clinical differences between CBCT and MSCT in this task have not been fully clarified. (sedentexct.eu)
  • In this investigation, the detection of fine anatomical structures in the mandible was assessed and compared between CBCT and MSCT images. (sedentexct.eu)
  • STUDY DESIGN: The sample consisted of 28 patients who had undergone CBCT and MSCT. (sedentexct.eu)
  • The bifid mandibular canal in the mandibular ramus, accessory mental and buccal foramina, and median and lateral lingual bony canals were observed in 2-D images, and the findings were compared between CBCT and MSCT. (sedentexct.eu)
  • CONCLUSION: Depiction of fine anatomic features in the mandible associated with neurovascular structures is consistent between CBCT and MSCT images. (sedentexct.eu)
  • This unique feature, which will be later named Multi-Slice Technology, allows to reduce the dose of radiation exposure, to obtain double spatial resolution, to substantially reduce by half the imaging time and to perform Computed tomography of the heart, cardiac imaging. (wikipedia.org)
  • The high spatial resolution of MSCT results in excellent morphological depiction of coronary arteries, bypasses, myocardium and even heart valves, which can be simultaneously reconstructed from a 3D data set. (ecrjournal.com)
  • Various authors have explored the improved temporal and spatial resolution that MSCT has brought to the kidneys and urinary tract. (diagnosticimaging.com)
  • An MSCT protocol for evaluating renal masses should contain unenhanced images of the kidneys, followed by contrast-enhanced scans through the entire abdomen in nephrographic and delayed phases. (diagnosticimaging.com)
  • The relative newness of MSCT technology has limited published experience of its protocols used on patients with renal disorders. (diagnosticimaging.com)
  • Increasing use of ultrasound and MSCT for clinical diagnoses has led to an increase in the detection of renal masses. (diagnosticimaging.com)
  • MSCT can be used both for primary diagnosis and for definitive differentiation of renal masses that are indeterminate or suspicious on intravenous urography (IVU) or ultrasound. (diagnosticimaging.com)
  • MSCT can detect, characterize, and stage renal tumors in one fast, high-resolution examination, assuming that a tailored multiphasic protocol is followed. (diagnosticimaging.com)
  • We obtain coronal MPR views routinely when assessing renal pathologies on MSCT. (diagnosticimaging.com)
  • STUDY DESIGN: One hundred spiral computed tomographic (CT) preoperative examinations of patients requiring assessment the lower jaw before implant placement were retrospectively evaluated to determine anatomical variations in bone morphology in the submandibular fossa region. (sedentexct.eu)
  • Factors associated with the large volume of data associated with MSCT examinations are presented. (snmjournals.org)
  • Computed tomography (CT), with its inferior soft tissue contrast, compared to magnetic resonance imaging (MRI) or transrectal ultrasound (TRUS) is not considered the primary imaging method when examining the prostate. (ispub.com)
  • So patients with suspect findings on digital examination or ultrasound may have the need for further imaging with computed tomography. (ispub.com)
  • Since the introduction of multislice computed tomography (MSCT) in 1998, non-invasive cardiac imaging has developed rapidly to become a robust method for morphological and functional imaging of the heart. (ecrjournal.com)
  • Since the introduction of multislice computed tomography (MSCT) in 1998, non-invasive cardiac imaging has developed rapidly. (ecrjournal.com)
  • Computed tomography (CT) is a medical imaging method employing tomography . (wikidoc.org)
  • MSCT radiation dosimetry is described, and dose issues associated with MSCT-and with CT in general-as well as techniques for reducing patient radiation dose are discussed. (snmjournals.org)
  • Tomography had been one of the pillars of radiologic diagnostics until the late 1970s, when the availability of minicomputers and of the transverse axial scanning method, this last due to the work of Godfrey Newbold Hounsfield and Allan McLeod Cormack , gradually supplanted it as the modality of CT. (wikidoc.org)
  • This article describes the potential of cardiac diagnostics using MSCT, taking into account aspects of dosing and valid guidelines. (ecrjournal.com)
  • In the recent past, two different objectives can be observed in the technological development of cardiac MSCT. (ecrjournal.com)
  • However, in recent years the technological development of cardiac MSCT has increased the importance of this procedure for the assessment of CHD in comparison with cardiac catheterisation. (ecrjournal.com)
  • To define, by using MSCT, LA and left atrial appendage (LAA) volumes in patients with or without CD. (nih.gov)
  • Dual-source computed tomography in patients with acute chest pain: feasibility and image quality. (mri-roentgen.ch)
  • In 26 patients with degenerative lumbar spine disease a lumbar ACT was performed in combination with conventional lumbar myelography and followed by postmyelographic MSCT. (ajnr.org)
  • Three-dimensional surface models constructed from CBCT images are comparable to those derived from MSCT scans and may be considered reliable tools for assessing condylar morphology. (nih.gov)
  • However, the use of computed tomography (CT) in daily dental practice remains contested due to its high cost and high radiation exposure. (9lib.co)
  • In 1988, he was asked to lead the development of a Spiral computed tomography scanner that will exceed the performances of any other CT scanner available in the market, and which will feature the ability to obtain two body images for each single rotation in. (wikipedia.org)
  • Postmyelographic MSCT was performed with a 16-section CT scanner. (ajnr.org)
  • The primary difference between single-slice CT (SSCT) and MSCT hardware is in the design of the detector arrays, as illustrated in Figure 1 . (snmjournals.org)
  • In MSCT, each of the individual, monolithic SSCT detector elements in the z -direction is divided into several smaller detector elements, forming a 2-dimensional array ( Fig. 1 ). (snmjournals.org)
  • Right) MSCT arrays with several rows of small detector elements. (snmjournals.org)
  • 1 The arrival of marketable scanners in the last 10 years has been, in part, facilitated by parallel advancements in flat panel detector (FPD) technology, improved computing power, and the relatively low power requirements of the x-ray tubes used in CBCT. (ajnr.org)
  • Results are presented of the experiment at the SYRMEP beamline of Elettra Synchrotron using the propagation-based phase-contrast mammographic tomography method, which incorporates not only absorption, but also x-ray phase information. (bvsalud.org)
  • RESULTS: Four of 19 canals observed in CBCT were not observed in MSCT images. (sedentexct.eu)
  • This article, the third in a series of continuing education articles on the principles of CT, focuses on multislice CT (MSCT). (snmjournals.org)
  • Throughout this article, however, the term "MSCT" is used. (snmjournals.org)
  • State-of-the-art MSCT scanners provide isotropic volume elements (voxels), which make it possible to generate high-quality sagittal and coronal multiplanar reformatted images and to use 3D volume rendering techniques. (diagnosticimaging.com)
  • Soon after their introduction in the late 1980s, slip ring scanners and helical (spiral) CT were rapidly adopted and soon became the de facto standard of care for body CT. (snmjournals.org)
  • 11 , 12 The ACT volume dataset (∼20-cm width and 25-cm height) can be used for 3D and multiplanar reconstructions in the same fashion as a spiral CT dataset. (ajnr.org)
  • The analysis shows that MSCT achieves higher ratings than ACT in all of the parameters asked. (ajnr.org)