Acrspr practice parameter for the performance of computed. Multidetector row computed tomography mdct represents the technique of choice for the majority of pathologies today and is responsible for the majority of diagnoses. Multidetector computed tomography mdct is a form of ct technology used for diagnostic imaging fig. Role of multidetector computed tomography scan in evaluation. Multiparametric multidetector computed tomography scanning on. The 1979 nobel prize in physiology or medicine was awarded. Mdct a form of computed tomography ct technology for diagnostic imaging. Multidetector computed tomography radiation doses in the. Multidetector row computed tomography mdct has advanced the approach to diagnostic assessment of many pathologies and now plays an integral role in imaging of both abdominal and cardiovascular diseases. Multidetector computed tomography evaluation of post. Errors in multidetector row computed tomography springerlink.
Audit of doses of multidetector computed tomography. Pdf multidetector computed tomography ct and volumetric rendering techniques have always been a useful support for the anatomical and. Eight hundred sixty consecutive patients with history of cholecystectomy laparoscopic or open were evaluated. Multidetector computed tomography mdct is the preferred modality for followup of paediatric neurosurgery patients. They can not achieve both high sensitivity and specificity. In total, 503 patients, including 312 males and 191.
Multidetector computed tomography for coronary artery. Ct is a noninvasive test that uses xrays to make pictures of your heart. Multidetector ctcta advanced medical imaging center. Ct scan computed tomography is a painless noninvasive medical test that helps physicians diagnose and treat medical conditions. Pdf postprocessing in maxillofacial multidetector computed. Computed tomography in the evaluation for transcatheter aortic valve implantation if left untreated, symptomatic, severe aortic stenosis as is associated with a dismal prognosis. Original article preoperative lymph node status of gastric cancer evaluated by multidetector computed tomography min wang1, yanwei ye2,3, qing yang1, jingjing li4, chao han5, wei wang6, chunlin zhao2,3, jianguo wen3 1department of function, the fifth affiliated hospital of zhengzhou university, zhengzhou, china. Tracheal collapse diagnosed by multidetector computed tomography. Computed tomography in the evaluation for transcatheter. For postoperative maxillofacial imaging, conebeam computed tomography was not optimal. Crosssectional imaging has become a critical aspect in the evaluation of arterial injuries.
Multidetector row computed tomography in the planning of abdominal perforator flaps 597 figure 4 sagittal view. Sixteenslice mdct is useful in patients affected by dcm. Lymph node metastasis lnm of gastric cancer is an important prognostic factor regarding longterm survival. Lowtubecurrent multidetector ct for children with suspected extrinsic. Original article combined spect and multidetector ct for prostate. Computed tomography ct is a radiologic modality that provides clinical. The goal of this study was to assess the safety, feasibility, and diagnostic accuracy of 64slice multidetector computed tomography mdct for the evaluation of coronary arteries in dilated cardiomyopathy of unknown etiology. Multidetector computed tomography in the evaluation of atrial septal defects poster no c0502 congress.
Quantitative analysis of intraventricular dyssynchrony. The common ct metrics of xray output, the volume ct dose index and the doselength product, are explained and serve as the basis for monitoring radiation exposure from ct. Pdf the introduction in 1998 of multidetector row computed tomography ct by the major ct vendors was a milestone with regard to. Rice, dds introduction imaging with cone beam technology has rapidly become a popular and frequently. Diagnostic methods 203 imaging of coronary artery anomalies.
Any information contained in this pdf file is automatically generated from digital material submitted to epos by third parties in the form of scientific presentations. Managing patient dose in multidetector computed tomography. Ct uses xray equipment to produce multiple images or pictures of the body and a computer to join them together in cross sectional views of the area of the body being studied. Modern ct scanners multidetector ct, or mdct work very fast and detailed. Then, if we decide to do a diep flap, we look for the best perforator that we located with the mdct. Practice parameter hrct lungs 3 for imaging of diffuse lung disease in the pediatric patient, please refer to the acraserscbtmrspr practice parameter for the performance of pediatric computed tomography ct 33. Identification and classification of atherosclerotic plaques in the coronary arteries by multidetector computed tomography. Identification and classification of atherosclerotic plaques in the coronary arteries by multidetector computed tomography 3 preface. Multidetector computed tomography mdct scanning has enabled the early. To our knowledge, this is the first presentation of midgut volvulus on multidetector computed tomography in adults. After exclusion of 645 patients with normal imaging. Role of 3d multidetector computed tomography in diagnosis of.
Background the goal of this study was to assess the safety, feasibility, and diagnostic accuracy of 64slice multidetector computed tomography mdct for the evaluation of coronary arteries in dilated cardiomyopathy dcm of unknown etiology. Multidetector computed tomography imaging techniques in. Hospital based observational prospective crosssectional study was conducted in the department. A perforator emerging from the rectus fascia is marked with an arrow. Detector configuration and z axis detector width for multidetector systems. Jun 25, 2015 multidetector row computed tomography mdct represents the technique of choice for the majority of pathologies today and is responsible for the majority of diagnoses.
Multiple images are acquired in a sequence by a rotating xray tube. Minimum spect camera requirements spect camera designs are based on a number of fundamental components, all of which play an integral role in the system performance and choice of a spect system. Multidetector computed tomography in the evaluation of atrial. Pdf multidetector row computed tomography download full. Multidetectorrow computed tomography in the planning of. Delayed splenic rupture dsr is an unusual outcome following blunt abdominal trauma. Quantitative analysis of intraventricular dyssynchrony using.
Ct image of bone ligament ct image of bone fact sheet provided by the university of florida large animal hospital. Estimation of sex in a contemporary saudi population based on sternal measurements using multidetector computed tomography. Identification and classification of atherosclerotic. A differential diagnosis of eagles syndrome includes, migraine headache, temporomandibular joint disorders, trigeminal neuralgia, unerupted or impacted molar teeth, and faulty dental prosthesis. Pdf multidetector computed tomography mdct findings of.
Multidetector computed tomography mdct of chest mediastinal window, figures 3a and 3b revealed diffuse groundglass opacities in bilateral lung parenchyma, septal thickening, and calcification along the interlobar septa and subpleural regions with black pleural lines. Acrsprstr practice parameter for the performance of high. Pdf imaging plays an essential part of chest trauma care. Cardiac computed tomography multidetector ct, or mdct. Apr 22, 2015 basic physics of multidetector computed tomography ct scan how ct scan works, different generations of ct, how image is generated and displayed and image artifacts related to ct scan. Multidetector row ct has dramatically improved the results of computed tomography in all clinical applications, but its beneficial impact has been most striking in vascular imaging. As a kind of machinelearning methods, support vector machine has the. Basic physics of multidetector computed tomography ct scan how ct scan works, different generations of ct, how image is generated and displayed and image artifacts related to ct scan. Estimation of sex in a contemporary saudi population based on sternal measurements using multidetector computed tomography author links open overlay panel a. However, technical limitations, such as cardiac arrhythmias, an inability of patients to. Multidetector computed tomography angiography mdctaof the coronary arteries after stenting has been evaluated in multiple studies. Basic principles of cone beam computed tomography kenneth abramovitch, dds, ms, dwight d. In this study, we aimed to identify variations in pulmonary veins pvs that are important for preparation before a radiofrequency ablation rfa using 64 multidetector computed tomography mdct and to classify their incidence and drainage types methods. Serial imaging, however, has the disadvantage of an ionising radiation burden, which may be mitigated using the as low as reasonably achievable alara principle.
A ct scan, or computed tomography scan is a medical imaging procedure that uses computerprocessed combinations of many xray measurements taken from different angles to produce crosssectional tomographic images virtual slices of specific areas of a scanned object, allowing the user to see inside the object without cutting. Effect of icosapent ethyl on progression of coronary. But several imaging techniques which are commonly used in stomach cannot satisfactorily assess the gastric cancer lymph node status. Computed tomography coronary angiography ctca has demonstrated useful clinical application in the assessment of patients presenting with typical chest pain and low. May 30, 2007 the introduction of multidetector computed tomography mdct is considered a dramatic development in ct imaging that has direct implication in the imaging of various systems, in particular the cardiovascular system. Pulmonary vein, variation, multidetector computed tomography. Acrasnrspr practice parameter for the performance of computed tomography ct of the extracranial head and neck preamble this document is an educational tool designed to assist practitioners in providing appropriate radiologic care for patients. Measurements of the mandibular canal by multidetector. The studies presented in this phdthesis were conducted at the department of cardiology, aarhus university hospital, skejby in the period from 20072011. Computed tomography ct is an advanced form of xray that. A reconstructed threedimensional computed tomography image of a sternum showing the five measurements conducted in the present study.
Noncontrast computed tomography ncct has become a useful tool in the. The introduction of multidetector computed tomography mdct is considered a dramatic development in ct imaging that has direct implication in the imaging of various systems, in particular the cardiovascular system. Its high sensitivity makes it a more effective rule out test than traditional investigation methods that dont use ionising radiation. Page 3 of 8 an independent licensee of the blue cross and blue shield association computed tomography to detect coronary artery calcification revascularization following screening using cac scoring compared to no cac scoring. Multidetector computed tomographic angiography of the. Objectives we sought to determine the feasibility of cardiac computed tomography ct to detect signi. Original article preoperative lymph node status of gastric. The simplicity of acquisition and the wide availability of equipment make this modality especially suitable for routine clinical application. In two female patients, lshaped or tandem kidney was noted, one on the right and another on the left side. Multidetector computed tomography for assessment of. Pdf advances in computed tomography imaging technology. Pdf the role of multidetector computed tomography in. Multidetector computed tomography mdct is a form of computed tomography ct technology for diagnostic imaging.
Mdct is a very fast type of computed tomography ct scan. They can take images of the beating heart, and show calcium and blockages in your heart arteries. The aim of this study was to investigate the measurements of the mandibular canal in different patterns of reabsorbed alveolar ridges, using multidetector computed tomography in order to evaluate the relationship of the mandibular canal with the cortex of the mandible remains. However, despite the low number of studies dedicated to errors in mdct, ct reporting seems especially prone to generating errors and errors are an inevitable part of mdct practice. We examined if a 16slice multidetector computed tomography mdct combined with single photon emis sion computed tomography. Identification and classification of atherosclerotic plaques in the coronary arteries by multidetector computed tomography 1. The multidetectorrow nature of mdct scanners refers to the use of multiple detector. A palpation of the styloid process in the tonsillar fossa serves as the initial step in evaluation. Artifacts on multidetector computed tomography mdct epos. Multidetector computed tomography with postprocessing of imaging data using threedimensional reconstruction techniques provided better demonstration of the abdomen than other imaging modalities. To describe a new multidetector computed tomography mdct protocol in the evaluation of atrial septal defects asd. A pubmed and manual search of the literature on instent. Multidetectorrow computed tomography mdct, also known as multislice, multidetector ct, or mul.
To evaluate the role of multidetector computed tomography mdct in detection and characterization of chemotherapy induced hepatic. Original article preoperative lymph node status of. Acrasnrspr practice parameter for the performance of. In this mdct approach, a twodimensional 2d array of detector elements replaces the linear array of detector elements used in the typical conventional and helical ct scanners. Multidetectorrow computed tomography mdct has advanced the approach to diagnostic assessment of many pathologies and now plays an integral role in imaging of. Multidetector ct scan radiologic associates diagnostic. Multidetector row computed tomography mdct has advanced the approach to diagnostic assessment of many pathologies and now plays an integral role in imaging of both abdominal and cardiovascular disea. We describe how computed tomography ct scanners that. Clinical applications of widedetector ct scanners for. Multidetector computed tomography with adaptive statistical iterative. For use at amarin scientific advisory board july 10, 2019. Multidetector computed tomography for coronary artery disease. Estimation of sex in a contemporary saudi population based on.
To describe a new multidetector computed tomography mdct protocol in the evaluation of atrial septal. Openheart surgical valve replacement is the treatment of choice and is associated with excellent short and longterm outcome. Edinburgh research explorer role of multidetector computed. Technical innovations in multidetector computed tomography mdct have accelerated this transition. Computed tomography ct is a radiologic modality that utilizes ionizing radiation to obtain crosssectional. Quantitative analysis of intraventricular dyssynchrony using wall thickness by multidetector computed tomography quynh a. Central crosssectional slice of 30 edentulous alveolar ridges in the mandibular first molar region of. Strategies for reducing radiation exposure from multidetector. Links to movies, ppt slideshows and any other multimedia files are not available in the pdf version of presentations.
A mdct scan allows the radiologist to see the location, or abnormalities. Multidetector computed tomography mdct has rapidly developed since the 1980s, and 64detector ct is an acceptable imaging modality for. Then, if we decide to do a diep flap, we look for the best perforator that we. The 16slice multidetector computed tomography mdct scanners have demonstrated good diagnostic accuracy for the detection of significant coronary stenosis in patients with known or suspected cad with high global feasibility, sensitivity, and negative predictive value npv. The introduction of singledetector helical computed tomography sdct in 1989 was the first step in a transition from viewing ct as a series of sequential axial sections to perceiving each examination as a volumetric acquisition of anatomic data. As a kind of machinelearning methods, support vector machine has the potential to solve this.
Multidetector computed tomography mdct is widely accessible, reproducible, fast, and has high temporal and spatial resolution with multiple postprocessing capabilities. Any information contained in this pdf file is automatically generated from digital. Multiple detector computed tomography mdct the imaging. A retrospective analysis of data from december 2012 to august 2014 was performed. Pdf multidetector row ct systems and imagereconstruction. To evaluate the role of multidetector computed tomography ct and ct angiography cta in post cholecystectomy complications. In mdct, a twodimensional array of detector elements replaces the linear array of detector elements used in typical conventional and helical ct scanners. Multidetectorrow computed tomography in the planning of abdominal perforator flaps 597 figure 4 sagittal view. Estimation of sex in a contemporary saudi population based. Tracheal collapse diagnosed by multidetector computed. Do not copy, distribute, reproduce or use for othe r purposes. Acrsprstr practice parameter for the performance of.
Definition of multidetector computed tomography medicinenet. Multiple detector computed tomography or mdct scanning is a rapid, painless diagnostic procedure that combines the use of computers and xrays. Openheart surgical valve replacement is the treatment of choice and is associated with. Many tools and strategies exist to enable reduction of radiation exposure from computed tomography ct. Audit of doses of multidetector computed tomography coronary.
Multidetector computed tomography in the evaluation of. To determine sensitivity and specificity of multidetector computed tomography mdct scan in the differentiation of benign and malignant neck mass in comparison with histopathological diagnosis. Irsn institute for radiation protection and nuclear safety france kap kerma area product lat lateral lsj lumbosacral joint mdct multidetector computed tomography med medical exposure directive mgd mean glandular dose mibi methoxyisobutylisonitrile mird medical internal radiation dosimetry mri magnetic resonance imaging. Role of 3d multidetector computed tomography in diagnosis. Computed tomography coronary angiography ctca has demonstrated useful clinical application in the assessment of patients presenting with typical chest pain and low to intermediate risk for cardiac disease. Identification and classification of atherosclerotic plaques. Crossed fused renal ectopia of inferior type was observed in a male on the right side with the ureter of the ectopic left kidney crossing the midline. Audit of doses of multidetector computed tomography coronary angiography with correlation to patient physical. Pdf on apr 21, 2019, dimitris fagkrezos and others published the role of multidetector computed tomography in diagnosis and staging of suspected scaphoid fractures find, read and cite all the.
466 354 775 69 1475 946 749 1598 1426 574 380 1127 1249 589 1678 99 1611 149 971 1344 1462 73 1636 1132 1173 101 1257 655 482 617 805 927 1526 766 503 1167 809 997 639 1296 167 553 1244 129 1180 1099 1008