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C-3022 - Updated PI-RADS version 2 in multiparametric prostate MRI - retrospective analysis controlled by MR-guided biopsies

M. Garmer, J. Karpienski, M. Busch, S. Mateiescu, D. H. W. Groenemeyer; Bochum/DE Type: Scientific Exhibit
Area of Interests: Urinary Tract / Bladder, Genital / Reproductive system male
Imaging Technique: MR-Functional imaging
Procedures: Structured reporting, Biopsy
Special Focuses: Cancer, Neoplasia
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Aims and objectives: Structured reporting might contribute to training of residents and students. Reproducibility is expected to improve diagnostic accuracy, however, simplification could be detrimental (1). Simultaneously an excessive expenditure of time should be avoided. Recently the existing Prostate Imaging Reporti[...]

Methods and materials: Multiparametric MRI was performed in 180 patients on a 1.5 Tesla wide bore system using an endorectal coil combined to a 6 channel body array and an 8 channel spine coil. Our standard protocol fulfilling the requirements of Consensus Meeting on the  Standardization of Prostate MRI (3) incl[...]

Results: The ROC analysis showed an area under curve of 0.845 for PI-RADSv1 and 0.853 für PI-RADSv2. The cutpoint ≥ PI-RADS 3 provided a sensitivity, specifity and correct grading in 95%, 30% and 53% for PI-RADSv1 and 88%, 62% and 72% for PI-RADSv2; the cutpoint ≥ PI-RADS 4 provided a sensitivity, specifity [...]

Conclusion: In our study population of 180 patients PI-RADSv2 showed in comparison to PI-RADS1 a slightly better diagnostic accuracy, a better agreement between radiologist and student and was less time-consuming.    In a smaller group of 54 patients a similar diagnostic accuracy has been reporte[...]

Personal information: Marietta Garmer, MD Diagnostik Zentrum Ruhr, Bochum Grönemeyer Institute for Microtherapy Witten/Herdecke University, Clinical Radiology Wuppertal/Cologne-Merheim Universitätsstr. 142, 44799 Bochum, Germany garmer@groenemeyer.com Julia Karpienski, MD Witten/Herdecke University, Grönemeyer Institut[...]

References: 1          Faggioni L, Coppola F, Ferrari R, Neri E, Regge D (2016) Usage of structured reporting in radiological practice: results from an Italian online survey. Eur Radiol. 10.1007/s00330-016-4553-6 2          Rot[...]

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