Interobserver agreement of Prostate Imaging–Reporting and Data System (PI-RADS–v2)

Abstract Background A retrospective study was conducted on 71 consecutive patients with suspected prostate cancer (PCa) with a mean age of 56 years and underwent mp-MRI of the prostate at 3 Tesla MRI. Two readers recognized all prostatic lesions, and each lesion had a score according to Prostate Imaging–Reporting and Data System version 2 (PI-RADS-v2). Purpose of the study To evaluate the interobserver agreement of PI-RADS-v2 in characterization of prostatic lesions using multiparametric MRI (mp-MRI) at 3 Tesla MRI. Results The overall interobserver agreement of PI-RADS-v2 for both zones was excellent (k = 0.81, percent agreement = 94.9%). In the peripheral zone (PZ) lesions are the interobserver agreement for PI-RADS II (k = 0.78, percent agreement = 83.9%), PI-RADS III (k = 0.66, percent agreement = 91.3 %), PI-RADS IV (k = 0.69, percent agreement = 93.5%), and PI-RADS V (k = 0.91, percent agreement = 95.7 %). In the transitional zone (TZ) lesions are the interobserver agreement for PI-RADS I (k = 0.98, percent of agreement = 96%), PI-RADS II (k = 0.65, percent agreement = 96%), PI-RADS III (k = 0.65, percent agreement = 88%), PI-RADS IV (k = 0.83, percent agreement = 96%), and PI-RADS V (k = 0.82, percent agreement = 92%). Conclusion We concluded that PI-RADS-v2 is a reliable and a reproducible imaging modality for the characterization of prostatic lesions and detection of PCa.

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Accuracy and Interobserver Agreement for Prostate Imaging Reporting and Data System, Version 2, for the Characterization of Lesions Identified on Multiparametric MRI of the Prostate

American Journal of Roentgenology ◽

10.2214/ajr.16.17289 ◽

2017 ◽

Vol 209 (2) ◽

pp. 339-349 ◽

Cited By ~ 39

Author(s):

Andrei S. Purysko ◽

Leonardo K. Bittencourt ◽

Jennifer A. Bullen ◽

Thomaz R. Mostardeiro ◽

Brian R. Herts ◽

...

Keyword(s):

Interobserver Agreement ◽

Multiparametric Mri ◽

Data System ◽

Prostate Imaging

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Characterization of cerebral microangiopathy using 3 Tesla MRI: Correlation with neurological impairment and vascular risk factors

Journal of Magnetic Resonance Imaging ◽

10.1002/jmri.10039 ◽

2002 ◽

Vol 15 (1) ◽

pp. 1-7 ◽

Cited By ~ 10

Author(s):

Margret Hund-Georgiadis ◽

Olaf Ballaschke ◽

Rainer Scheid ◽

David G. Norris ◽

D. Yves von Cramon

Keyword(s):

Risk Factors ◽

Neurological Impairment ◽

Vascular Risk Factors ◽

3 Tesla ◽

Vascular Risk ◽

3 Tesla Mri ◽

Cerebral Microangiopathy

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Prostate Imaging-Reporting and Data System: Comparison of the Diagnostic Performance between Version 2.0 and 2.1 for Prostatic Peripheral Zone

Korean Journal of Radiology ◽

10.3348/kjr.2020.0837 ◽

2021 ◽

Vol 22 ◽

Author(s):

Hyun Soo Kim ◽

Ghee Young Kwon ◽

Min Je Kim ◽

Sung Yoon Park

Keyword(s):

Diagnostic Performance ◽

Peripheral Zone ◽

Data System ◽

Prostate Imaging ◽

Version 2.0

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Comparison of Prostate Imaging Reporting and Data System versions 1 and 2 for the Detection of Peripheral Zone Gleason Score 3 + 4 = 7 Cancers

American Journal of Roentgenology ◽

10.2214/ajr.17.17964 ◽

2017 ◽

Vol 209 (6) ◽

pp. W365-W373 ◽

Cited By ~ 18

Author(s):

Satheesh Krishna ◽

Matthew McInnes ◽

Christopher Lim ◽

Robert Lim ◽

Shaheed W. Hakim ◽

...

Keyword(s):

Gleason Score ◽

Peripheral Zone ◽

Data System ◽

Prostate Imaging

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Prospective evaluation of the correlation between Prostate Imaging –Reporting and Data System (PI-RADS) version 2.1 and International Society of Urological Pathology (ISUP) score, and inter-observer Reproducibility of the New Version

10.22541/au.161951787.70814574/v1 ◽

2021 ◽

Author(s):

GÜLŞEN YÜCEL OĞUZDOĞAN ◽

Zehra Hilal Adıbelli ◽

Ertugrul Sefik ◽

Hulya Mollamehmetoğlu ◽

Ibrahim Halil Bozkurt ◽

...

Keyword(s):

International Society ◽

Interobserver Agreement ◽

Transrectal Ultrasound ◽

Peripheral Zone ◽

Observer Agreement ◽

Cognitive Fusion ◽

Prostate Imaging ◽

A Value ◽

Sensitivity Specificity ◽

Histopathological Results

Purpose: To evaluate the correlation between PI-RADSv2.1 and International Society of Urologic Pathologists (ISUP) score for patients who underwent multiparametric-MRI(MpMRI) prior to transrectal ultrasound (TRUS) guided cognitive fusion biopsy (CF-Bx). And to investigate inter-observer agreement of PI-RADSv2.1. Methods: Patients who underwent MpMRI of prostate prior to first TRUS-guided CF-Bx, were included in this prospective study. MpMRI examinations were evaluated by two radiologists before biopsy according to the PI-RADSv2.1. Interobserver agreement was recorded and the final PI-RADS categorization was performed by consensus. Correlation of histopathological results with PI-RADSv2.1 score was evaluated. Lesions with Gleason Score(GS)≥6 were considered as prostate cancer (PCa). Results: A total of 84 patients with 106 lesions were included in the study. The ratio of PCa in the PI-RADS groups 1,2,3,4,5 was 0%, 0%, 22.2%, 56%, 94.45%, respectively. There was a positive correlation with a value of 0.814 between the PI-RADSv2.1 and the ISUP score. When PI-RADS≥3 is accepted as the cut-off value in peripheral zone(PZ) and the whole gland, the NPV for malignancy was 100.00%. For PI-RADS ≥4, it was 76.47% for PZ, and 80.65% for the whole gland. For the whole gland; sensitivity, specificity, and PPV of the PI-RADS≥3 were 100%, 12.9%, and 44.33%, respectively; for PI-RADS≥4, these values were 72.09%, 80.65%, and 72.09% respectively. Without applying cut-off values, the interobserver agreement for PI-RADS score was κappa:0.562. Conclusions: PI-RADSv2.1 was created in the framework of v2 to facilitate to evaluate MpMRI and to increase interobserver agreement. We believe that further studies will be necessary.

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