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Clinical Significance of Bladder Urothelial Thickening and Enhancement Revealed on MDCT Urography After Transurethral Resection of Tumor.
MedLine Citation:
PMID:  22446367     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: To assess multidetector-row computed tomographic (MDCT) urography for detection of recurrence of bladder tumor after transurethral resection (TUR), and to assess significance of the MDCT findings like urothelial enhancement or thickening as a recurrence.
METHODS: A total of 216 MDCT urography examinations were performed for 100 patients undergoing follow-up after TURs were reviewed by 2 radiologists, according to MDCT findings (urothelial enhancement or thickening) and location (TUR site or distant sites of transitional cell carcinoma). Multidetector-row CT urography was confirmed by cystoscopy and urine cytologic examination. Analyses of per-MDCT urography and per-lesion basis were performed, assessing receiver operating characteristic analysis for combining excretory phases to noncontrast and portal venous phases.
RESULTS: Fifty-two MDCT findings were positive, and 164 MDCT findings were negative. Of the 52 positive MDCT urography, 19 were true positive 33 were false positive. Of the 60 separate lesions, 25 lesions were true positive. Both urothelial enhancement and thickening were revealed in 19 lesions, urothelial enhancement in 4 lesions, and urothelial thickenings in 2 lesions. Nineteen lesions were revealed in TUR site, and 6 lesions were revealed in distant site of transitional cell carcinoma. For MDCT urography combining excretory phases to noncontrast and portal venous phases, a substantial agreement between radiologists was revealed (area under the curve; 0.910 ± 0.035, 0.749 ± 0.055; 8.3%; kappa score of 0.65).
CONCLUSIONS: Multidetector-row CT urography has efficacy in detecting recurrence of bladder tumor in patients undergoing follow-up after TUR.
Authors:
Chan Sun Kim; See Hyung Kim; Hee Jung Lee; Young Whan Kim
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of computer assisted tomography     Volume:  36     ISSN:  1532-3145     ISO Abbreviation:  J Comput Assist Tomogr     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-03-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703942     Medline TA:  J Comput Assist Tomogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  243-8     Citation Subset:  IM    
Affiliation:
From the Department of Radiology, Dongsan Hospital, Keimyung University.
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