Analysis of histological findings obtained combining US/mp-MRI fusion-guided biopsies with systematic US biopsies: mp-MRI role in prostate cancer detection and false negative
| Autor: | Eliodoro Faiella, Rosario Francesco Grasso, Domiziana Santucci, Giulia Frauenfelder, Giovanni Muto, Bruno Beomonte Zobel, Viola Giacobbe, Federico Greco |
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| Rok vydání: | 2017 |
| Předmět: |
Image-Guided Biopsy
Male medicine.medical_specialty Pathology 030232 urology & nephrology Magnetic Resonance Imaging Interventional Sensitivity and Specificity 03 medical and health sciences Prostate cancer 0302 clinical medicine Predictive Value of Tests Biopsy medicine Atypia Carcinoma Biomarkers Tumor Humans Radiology Nuclear Medicine and imaging Ultrasonography Interventional Neuroradiology Aged Retrospective Studies Aged 80 and over medicine.diagnostic_test business.industry Prostatic Neoplasms General Medicine Middle Aged Prostate-Specific Antigen medicine.disease Magnetic Resonance Imaging Prostate-specific antigen 030220 oncology & carcinogenesis Predictive value of tests Radiology Biopsy Large-Core Needle Neoplasm Grading business |
| Zdroj: | La Radiologia medica. 123(2) |
| ISSN: | 1826-6983 |
| Popis: | To evaluate the diagnostic accuracy of mp-MRI correlating US/mp-MRI fusion-guided biopsy with systematic random US-guided biopsy in prostate cancer diagnosis.137 suspected prostatic abnormalities were identified on mp-MRI (1.5T) in 96 patients and classified according to PI-RADS score v2. All target lesions underwent US/mp-MRI fusion biopsy and prostatic sampling was completed by US-guided systematic random 12-core biopsies. Histological analysis and Gleason score were established for all the samples, both target lesions defined by mp-MRI, and random biopsies. PI-RADS score was correlated with the histological results, divided in three groups (benign tissue, atypia and carcinoma) and with Gleason groups, divided in four categories considering the new Grading system of the ISUP 2014, using t test. Multivariate analysis was used to correlate PI-RADS and Gleason categories to PSA level and abnormalities axial diameter. When the random core biopsies showed carcinoma (mp-MRI false-negatives), PSA value and lesions Gleason median value were compared with those of carcinomas identified by mp-MRI (true-positives), using t test.There was statistically significant difference between PI-RADS score in carcinoma, atypia and benign lesions groups (4.41, 3.61 and 3.24, respectively) and between PI-RADS score in Gleason 7 group and Gleason 7 group (4.14 and 4.79, respectively). mp-MRI performance was more accurate for lesions 15 mm and in patients with PSA 6 ng/ml. In systematic sampling, 130 (11.25%) mp-MRI false-negative were identified. There was no statistic difference in Gleason median value (7.0 vs 7.06) between this group and the mp-MRI true-positives, but a significant lower PSA median value was demonstrated (7.08 vs 7.53 ng/ml).mp-MRI remains the imaging modality of choice to identify PCa lesions. Integrating US-guided random sampling with US/mp-MRI fusion target lesions sampling, 3.49% of false-negative were identified. |
| Databáze: | OpenAIRE |
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