Home|Journals Follow on Twitter| Subscribe to List

Directory for Medical Articles

Open Access

Original Research

Prostate carcinoma detection: Moving from multiparametric to bi-parametric magnetic resonance imaging

Swarna, Shalabh Jain, Shabnam Bhandari Grover, Nayan Kumar Mohanty, Neetika Gupta.

Background: Prostate carcinoma screening tests usually include digital rectal examination (DRE) and prostate-specific antigen (PSA) levels. If these tests detect some abnormality, further evaluation is recommended using transrectal ultrasound (TRUS), TRUS guided biopsy, or magnetic resonance imaging (MRI). MRI is a preferred tool among three as its noninvasive and has high sensitivity and specificity. In MRI, most of the medical centers perform multi-parametric MRI. The present study is an endeavor to evaluate the feasibility of using biparametric study for detection of prostate cancer; thereby reducing the scan time and avoiding the use of contrast.

Objective: The objective of the study was to compare the diagnostic efficacy of using biparametric MRI (T2-weighted imaging [T2WI] and Diffusion-weighted images [DWI]) for detection of carcinoma prostate as compared to multiparametric MR study which in addition also includes dynamic contrast-enhanced (DCE) and spectroscopic MRI sequences.

Materials and Methods: This prospective cross-sectional study included 60 patients suspected to have prostate cancer on the basis of PSA levels and DRE. All the patients underwent pre-treatment MRI on 1.5 T scanner followed by TRUS guided biopsy. MRI protocol included T1-weighted images, T2W, DWI, DCE MRI, and MR spectroscopy. The diagnostic performance of T2WI + DWI and multi-parametric MRI for diagnosis of prostate cancer was determined and compared with each other using histopathology as the gold standard.

Results: The sensitivity for detection of carcinoma prostate for biparametric MRI (T2WI + DWI) is 63.3%, specificity 78.95%, positive predictive value (PPV) 86.6%, and negative predictive value of (NPV) 50.00%. The sensitivity of multiparametric MRI was 78.05%, specificity 68.42 % with PPV 84.2%, and NPV of 59.09%.

Conclusion: For the detection of prostate cancer biparametric (DWI/T2WI) and multi-parametric MRI both showed comparable results. Multi-parametric MRI involves the administration of intravenous contrast and requires longer acquisition time; T2/DWI is faster and non-contrast sequences and is workhorse sequence in the detection of prostate cancer.

Key words: Multiparametric; Biparametric; Carcinoma Prostate; Magnetic Resonance Imaging

Share this Article

Journal of Apitherapy


BiblioMed Home
Follow ScopeMed on Twitter
Author Tools
eJPort Journal Hosting
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
ScopeMed is a Database Service for Scientific Publications. Copyright ScopeMed Information Services.