Cited 3 times in

Impact of Bent Distortion on Accuracy of Measurement During Transrectal Ultrasonography for Prostatic Imaging: A Preliminary Study

Title
Impact of Bent Distortion on Accuracy of Measurement During Transrectal Ultrasonography for Prostatic Imaging: A Preliminary Study
Authors
Hyung Ho Lee;Joo Yong Lee;Kang Su Cho;Young Deuk Choi;Koon Ho Rha;Won Sik Ham;Richilda Red Diaz;Ho Song Yu
Issue Date
2013
Journal Title
Urology
ISSN
0090-4295
Citation
Urology, Vol.81(4) : 915~919, 2013
Abstract
OBJECTIVE: To evaluate the effect of bent distortion of the image of the prostate on the accuracy of 3-dimensional measurements during transrectal ultrasonography (TRUS). METHODS: TRUS images were obtained prospectively from 60 patients with prostate cancer. The degree of rectal compression on the probe was varied in each case to obtain a typical bent distortion image (BDI) and a minimally bent image (MBI). Magnetic resonance imaging (MRI) served as the reference. Axial and midsagittal BDI, MDI, and MRI were selected. Three-dimensional prostate diameters (height, width, and length) and volume were obtained from all images by 2 independent observers. The data were analyzed by using a paired t test, intraclass correlation coefficients (ICCs), and Bland-Altman plots. RESULTS: The MBI and BDI diameters differed significantly (P <.001). All ICCs for the MBI diameters and volume and the ICCs for BDI length and volume exceeded 0.9, which indicates high measurement reliability. However, the ICCs for BDI height and width were below 0.9. When the difference in MBI or BDI relative to MRI was calculated for each variable, the MBI differences were all significantly smaller than the BDI differences (P <.001). CONCLUSION: Bent distortion during TRUS affects the accuracy of measurements. MBI is also morphologically more realistic than BDI. Therefore, to minimize prostatic image distortion, the rectal probe should be placed so that the posterior wall of the prostate is as flat as possible.
URI
http://www.sciencedirect.com/science/article/pii/S0090429512015622

http://ir.ymlib.yonsei.ac.kr/handle/22282913/86931
DOI
10.1016/j.urology.2012.12.020
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Urology
Yonsei Authors
사서에게 알리기
  feedback
Files in This Item:
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse