Iranian Journal of Medical Sciences
Iranian Journal of Medical Sciences

Application of Bland-Altman Method in Comparing Transrectal and Transabdominal Ultrasonography for Estimating Prostate Volume

Document Type : Original Article(s)

Authors

Ali Babaei Jandaghi 1
Maryam Shakiba 2
Hamidreza Nasseh 3
Yaser Korouji 3
Samaneh Esmaeili 3
Ali Akbar Khadem Maboudi 4
Ali Khorshidi 2

1 Department of Radiology, Guilan University of Medical Sciences, Rasht, Iran

2 Department of Epidemiology, Shahid Beheshti University of Medical Science, Tehran, Iran

3 Urology Research Center, Guilan University of Medical Sciences, Rasht, Iran

4 Department of Biostatistics, Shahid Beheshti University of Medical Science, Tehran, Iran

Abstract
Background: Estimating prostate volume using less invasive transabdominal ultrasonography (TAUS) instead of transrectal ultrasonography (TRUS) is of interest in terms of identifying their agreement level. Previous reports on this subject, applied general correlation coefficient as the level of agreement. This study uses Bland-Altman method to quantify TAUS and TRUS agreement on estimating prostate volume.Methods: Total prostate gland volume of 40 patients with signs and symptoms of benign prostatic hyperplasia were measured using TAUS and TRUS. The study was carried out at the Urology Research Center, Razi Hospital, Guilan University of Medical Sciences (Rasht, Iran) from March to October 2010. Both methods were performed in one session by the same experienced radiologist. Data were analyzed using Pearson correlation coefficient and Bland-Altman method.Results: Total prostate volume estimated by TAUS and TRUS were 50.30±23 and 50.73±24.6 mL, respectively. The limits of agreement for the total prostate volume were -6.86/9.84 that was larger than predefined clinical acceptable margin of 5 mL.Conclusion: There is a lack of agreement between TAUS and TRUS for estimating the total prostate volume. It is not recommended to apply TAUS instead of TRUS for estimating prostate volume.

Keywords

Prostate
Ultrasonography
Cross-sectional study
Bland-Altman approach
Iranian Journal of Medical Sciences
Volume 40, Issue 1 - Serial Number 1
23
January 2015
Pages 34-39

  • Received 21 January 2015
  • Revised 22 August 2020
  • Accepted 24 December 2018

Home

Guide for Authors

Submit Manuscript

Guide for Reviewers

Forms

News

Contact Us

FAQ

Suggestion and Complain