Abraham H Dachman

..Prior reports of tagging were limited in that the residual stool was neither measured and stratified by size nor did prior reports subjectively evaluate the ease of interpretation by a reader experienced in interpreting CTC examinations...

..Comparison of these various views, comparisons of supine and prone positioning, and comparisons of lung and soft tissue windows aid in the recognition of various pitfalls of interpretation...

..To assess the effect of using computer-aided detection (CAD) in second-read mode on readers' accuracy in interpreting computed tomographic (CT) colonographic images...

..To introduce an educational intervention-specifically, a specialized training course-and perform a formative evaluation of the effect of the intervention on novice reader interpretation of computed tomography (CT) colonographic data...

..By use of the mixture of expert 3D MTANNs, the specificity of a CAD scheme for detection of polyps in CTC was substantially improved while a high sensitivity was maintained...

..Overall, the 3D MTANN was able to reduce the FP rate of the CAD scheme from 3.1 to 2.1 FPs per patient (33% reduction), while the original by-polyp sensitivity of 96.4% was maintained...

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..This CAD scheme permits accurate detection of suspicious lesions and thus has the potential to reduce radiologists' interpretation time and improve their diagnostic accuracy in the detection of polyps at CT colonography...

..The mass detection methods did not affect the result of the polyp detection. The results indicate that the scheme is potentially useful in providing a high-performance CAD scheme for the detection of colorectal neoplasms in CTC...

..This paper describes the key techniques used for CAD for detection of polyps and masses in CT colonography, the current detection performance, and challenges and the future of CAD...

..In particular, the technique was designed to minimize the presence of extracolonic components, such as small bowel, in the segmented colon...

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..To retrospectively evaluate if false-negative interpretations at computed tomographic (CT) colonography are due to observer error...

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..The purpose of this study was to evaluate the reliability of polyp measurements at CT colonography and the factors that affect the measurements...

..Reader error due to polyp characteristics was evaluated in a multiple-case, multiple-reader trial of computed tomographic colonography with CAD...

..To determine the prevalence of extracolonic findings at computed tomographic colonography (CTC) and estimate the cost of the workup of newly discovered potentially significant lesions...

..Its precise role in screening average-risk patients for colon cancer remains to be defined by ongoing research and clinical trials...

..We evaluated these factors to determine whether 2D or 3D is best for flat lesion measurements...

..Using fecal tagging and careful attention to the proper methods of searching for flat lesions with both 3D and 2D techniques can maximize the detection of flat lesions at CTC. Computer-aided detection may be helpful...

..A prospective study evaluating the performance of computerized tomography colonography in a screening population is indicated...

..To develop a computer-aided diagnosis (CAD) scheme for automated detection of colonic polyps on the basis of volumetric features and to assess its accuracy on the basis of colonoscopy, the standard...

..The objective of the study was to evaluate quantitatively normal pancreatic morphology, size, and volume stratified by age and sex...

..Conversely, faster, more accurate interpretation by the radiologist on the same day as a VC should lead to the consideration by the gastroenterologist of same-day colonoscopy for patients with a suspicious, significantly sized polyp...

..Therefore, the authors examined the information on CTC and virtual colonoscopy available for consumers on the Web to assess its quality...

..This article illustrates the usefulness of MDCT in the evaluation of small bowel obstruction and related conditions in adults and emphasizes the benefits of advanced CT applications...

..We report a case of a 38-year-old man who presented for routine liver transplant evaluation. On high-resolution computed tomography (CT), a cluster of varices was seen in the left cardiophrenic angle...

..Urologists and radiologists should be aware of the radiographic appearance of the LTC and WKHL given the ease with which they could be confused with urinary lithiasis when applied near the urinary system...

..It explains previous anecdotal reports of false-negative diagnoses. When solid feces is suspected in the cecum based on mobility, the reviewer should take the time to carefully analyze mobility of the cecum using multiplanar images...

..Finally, optimisation of laxative-free CTC could be invaluable in the development of CTC as a screening tool for CRC...

..1%) were categorized as homogeneously low density. The results of this study suggest that ICVs have a varying range of densities, and this feature alone cannot be used to distinguish the ICV from a polyp or neoplastic lesion on CTC...