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- Title
Detection of upper tract urothelial neoplasms: sensitivity of axial, coronal reformatted, and curved-planar reformatted image-types utilizing 16-row multi-detector CT urography.
- Authors
Dillman, Jonathan R.; Caoili, Elaine M.; Cohan, Richard H.; Ellis, James H.; Francis, Isaac R.; Schipper, Matthew J.
- Abstract
<bold>Background: </bold>The purpose of our study was to determine the sensitivity of 16-row multi-detector computed tomography urography (CTU) axial, coronal reformatted, and curved-planar reformatted image-types for upper tract urothelial neoplasm detection. <bold>Methods: </bold>Twenty-one CTU examinations were identified that contained one or more pathology-proven upper tract urothelial neoplasms during our study period. Two readers independently reviewed 1.25 and 2.5 mm axial, coronal reformatted, and curved-planar reformatted excretory phase CTU images. Each reader then documented the location and appearance of lesions suspicious for upper tract urothelial neoplasm. These results were correlated with relevant endoscopic/surgical procedure notes as well as pathology results. <bold>Results: </bold>Reader #1 detected 72%, 63%, 75%, and 72% of the known 32 upper tract urothelial neoplasms using 1.25 mm axial, 2.5 mm axial, coronal reformatted, and curved-planar reformatted image-types, respectively. Reader #2 detected 72% of the known neoplasms using each of the four image-types. No significant difference in sensitivity between image-types was identified. After combining the results for all four image-types, readers #1 and #2 had overall sensitivities of 94% and 91%. <bold>Conclusions: </bold>Axial, coronal reformatted, and curved-planar reformatted image-types have similar sensitivities for the detection of upper tract urothelial neoplasm in 16-row multi-detector CTU. Reviewing multiple image-types increases the sensitivity of urothelial lesion detection.
- Subjects
URINARY organ radiography; TUMORS; ENDOSCOPY; TOMOGRAPHY; ENDOSCOPIC surgery
- Publication
Abdominal Imaging, 2008, Vol 33, Issue 6, p707
- ISSN
0942-8925
- Publication type
journal article
- DOI
10.1007/s00261-008-9360-3