Contemporary imaging of patients with a renal mass: Does size on computed tomography equal pathological size? Journal Article

   

Authors:	Kurta, J. M.; Thompson, R. H.; Kundu, S.; Kaag, M.; Manion, M. T.; Herr, H. W.; Russo, P.
Article Title:	Contemporary imaging of patients with a renal mass: Does size on computed tomography equal pathological size?
Abstract:	OBJECTIVE: To evaluate the difference between radiographic size on computed tomography (CT) and the pathological size of renal tumours, in contemporary patients. PATIENTS AND METHODS: We retrospectively reviewed the records of 521 patients undergoing surgical resection of a renal mass between 2000 and 2007, who had tumour sizes recorded from both preoperative CT and pathological evaluation of the tumour specimen. Data on histological tumour type were also extracted. The paired Student's t-test was used to compare the mean radiographic size as measured on CT with the mean pathological size, with P < 0.05 considered to indicate statistical significance. RESULTS: For all patients, the mean radiographic size and mean pathological size was 4.79 and 4.69 cm, respectively (P = 0.02). Therefore, on average, radiographic size overestimated pathological size by 1 mm. In patients with a tumour of 4-7 cm, radiographic size overestimated pathological size by 0.21 cm (P = 0.007). However, there was no significant difference in patients with a tumour of <4 cm or >7 cm. CONCLUSIONS: Using contemporary patients, there was a statistically significant overestimation of renal tumour sizes by CT compared with the pathological assessment. However, the overall difference between radiographic and pathological tumour size was 1 mm, suggesting that CT provides an accurate method with which to estimate renal tumour size. © 2008 The Authors.
Keywords:	adult; human tissue; aged; middle aged; retrospective studies; major clinical study; histopathology; treatment planning; cancer staging; preoperative evaluation; accuracy; computer assisted tomography; cohort studies; tumor volume; tomography, x-ray computed; pathology; retrospective study; kidney neoplasms; imaging system; kidney tumor; evaluation; radiography; ct; student t test
Journal Title:	BJU International
Volume:	103
Issue:	1
ISSN:	1464-4096
Publisher:	Wiley Blackwell
Date Published:	2009-01-01
Start Page:	24
End Page:	27
Language:	English
DOI:	10.1111/j.1464-410X.2008.07941.x
PUBMED:	18710440
PROVIDER:	scopus
PMCID:	PMC2634853
DOI/URL:	http://www.scopus.com/inward/record.url?eid=2-s2.0-57649146543&partnerID=40&md5=f7da40e73879c23b08ffac44623f21a3
Notes:	--- - "Cited By (since 1996): 4" - "Export Date: 30 November 2010" - "CODEN: BJINF" - "Source: Scopus"

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