Purpose: The aim of the present study was to evaluate the patient population,\ndifferent MRI examination protocols and the patientâ??s acceptance of the endorectal\ncoil in the diagnosis of prostate cancer regarding the current discussion\nin PI-RADS v2.1. Material and Methods: In our institute, 256 patients\nwere examined with different protocols and separated into six groups. The\nvalue of the different MRI protocols was identified by analyzing sensitivity,\nspecificity, negative predictive value and positive predictive value. The patient\npopulation was tested for statistically significant differences in their\ncharacteristics to detect a distortion of the results. The patientsâ?? acceptance of\nendorectal coil was evaluated by a query. Results: In total 4.7% of the patients\nwould not recommend a MRI examination because of subjective physical\nstrain and 65.6% of all patients subjectively saw a benefit in the examination\nin regard to an optimal diagnostic process. The protocol groups reached a\nsensitivity from 66.7% - 100%, a specificity from 40% - 75%, a positive predictive\nvalue from 33.3% - 80% and a negative predictive value from 66.7% -\n100%. Conclusion: MRI of the prostate is a safe and comfortable tool with\nhigh sensitivity and negative predictive value and the potential of ruling out a\nclinically significant prostate cancer. However, a general recommendation for\nthe use of biparametric MRI could not be given, considering a higher sensitivity\ncould be performed when using dynamic contrast-enhanced MRI or\nspectroscopy.
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