Diagnostic accuracy of magnetic resonance imaging (MRI) prostate imaging reporting and data system (PI-RADS) scoring in a transperineal prostate biopsy setting

2014 ◽  
Vol 115 (5) ◽  
pp. 728-735 ◽  
Author(s):  
Alistair D.R. Grey ◽  
Manik S. Chana ◽  
Rick Popert ◽  
Konrad Wolfe ◽  
Sidath H. Liyanage ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Diagnostic Accuracy ◽  
Prostate Biopsy ◽  
Data System ◽  
Resonance Imaging ◽  
Prostate Imaging ◽  
Transperineal Prostate Biopsy ◽  
Magnetic Resonance Imaging Mri

scholarly journals Standardization of Multiparametric Prostate MR Imaging Using PI-RADS

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Joyce G. R. Bomers ◽  
Jelle O. Barentsz
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Scoring System ◽  
Data System ◽  
Single Parameter ◽  
Resonance Imaging ◽  
Multiparametric Imaging ◽  
Prostate Imaging ◽  
Magnetic Resonance Imaging Mri

The purpose of this paper is to introduce and describe the Prostate Imaging and Reporting Archiving Data System (PI-RADS). For every single parameter the PI-RADS scoring system will be explained and magnetic resonance imaging (MRI) examples will be given. In the end two patient cases are presented to explain the overall interpretation score in multiparametric imaging.

Development of a Device-to-Image Registration Free Needle Guide for Magnetic Resonance Imaging-Guided Targeted Prostate Biopsy

2020 ◽  
Vol 14 (4) ◽  
Author(s):  
Pankaj Kulkarni ◽  
Sakura Sikander ◽  
Pradipta Biswas ◽  
Sumit Laha ◽  
Heather Cornnell ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Image Registration ◽  
Prostate Biopsy ◽  
Signal To Noise Ratio ◽  
Clinical Environment ◽  
Resonance Imaging ◽  
Transperineal Prostate Biopsy ◽  
Mri Guided ◽  
Magnetic Resonance Imaging Mri

Abstract Significant research has been done in the past decade for the development of magnetic resonance imaging (MRI) guided needle guide (NG) systems for prostate intervention. Most of these systems have been restricted to application in the lab environment with lack of progress toward clinical application. Bulky and complex designs can be attributed to this practice. These systems also demand complex technical setup and usage procedures, which require extra technical personnel during the intervention in addition to specialized training for physicians. Moreover, “device-to-image” registration, essential for accurate and precise targeting, further complicates the overall process while increasing total time for intervention. In order to address these limitations, a simplified, MRI-guided, transperineal prostate biopsy NG system was designed and developed for rapid adoption into the clinical environment. The system consists of a NG device and a software toolkit. It does not require any special intraprocedural technical expertise or dedicated training. Also, to simplify and shorten total procedure time, the device uses the unique concept of “fixed coordinate device” eliminating the need for any device-to-image registration making it clinically friendly. To verify the NG design along with the registration free feature, image quality tests and agar phantom-based targeting experiments were performed under the guidance of 3T MRI scanner. The imaging tests resulted in a distortion of less than 1% in presence of the device and an average change of 1.3% in signal-to-noise ratio. For targeting experiments, maximum in-plane error distance of 3.8 mm with a mean of 2.2 mm and standard deviation of 0.8 mm was observed. The results show that an MRI-compatible simplified intervention device without the need of device-to-image registration is technically feasible.

scholarly journals The Utility of Combined Target and Systematic Prostate Biopsies in the Diagnosis of Clinically Significant Prostate Cancer Using Prostate Imaging Reporting and Data System Version 2 Based on Biparametric Magnetic Resonance Imaging

2021 ◽  
Vol 28 (2) ◽  
pp. 1294-1301
Author(s):  
Daiki Kato ◽  
Kaori Ozawa ◽  
Shinichi Takeuchi ◽  
Makoto Kawase ◽  
Kota Kawase ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Prostate Cancer ◽  
Magnetic Resonance ◽  
Diagnostic Accuracy ◽  
Data System ◽  
Receiver Coil ◽  
Resonance Imaging ◽  
Prostate Imaging ◽  
Rate Of Increase ◽  
Clinically Significant

This study aimed to determine the predictive value of the Prostate Imaging Reporting and Data System version 2 (PI-RADS v2) based on biparametric magnetic resonance imaging (bpMRI) with combined target biopsy (TBx) and systematic biopsy (SBx) in patients with suspicion of having clinically significant prostate cancer (csPCa). In this retrospective study, we reviewed the clinical and pathological records of 184 consecutive patients who underwent bpMRI before prostate biopsy. We focused on patients with PI-RADS v2 scores ≥ 3. MRI was performed using a 3-Tesla clinical scanner with a 32-channel phased-array receiver coil. PI-RADS v2 was used to describe bpMRI findings based on T2-weighted imaging and diffusion-weighted imaging scores. The primary endpoint was the diagnostic accuracy rate of PI-RADS v2 based on bpMRI for patients with prostate cancer (PCa) who underwent combined TBx and SBx. A total of 104 patients were enrolled in this study. Combined TBx and SBx was significantly superior to either method alone for PCa detection in patients with suspicious lesions according to PI-RADS v2. TBx and SBx detected concordant csPCa in only 24.1% of the patients. In addition, the rate of increase in the Gleason score was similar between SBx (41.5%) and TBx (34.1%). The diagnostic accuracy of bpMRI is comparable to that of standard multiparametric MRI for the detection of csPCa. Moreover, combined TBx and SBx may be optimal for the accurate determination of csPCa diagnosis, the International Society of Urological Pathology grade, and risk classification.

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