Introduction and Outline of the thesis; Primary Staging of Prostate Cancer; Local Staging of Prostate Cancer with Endorectal MR Imaging:; Correlation with Histopathology; Amyloidosis of the Seminal Vesicles Simulating Tumor Invasion of Prostatic Carcinoma on Endorectal MR Images; Pelvic Adenopathy in Prostate and Bladder Carcinoma:; MR Imaging with a Three-dimensional TI-weighted Magnetization Prepared rapid Gradient-echo Sequence.; Sensitivity of Frozen Section Examination fo Pelvic Lymph Nodes for Metastatic Prostate Carcinoma; Dynamic Turbo-FLASH Subtraction technique for Contrast-enhanced MR Images of the Prostate:; Correlation with Histopathology; Proton MR Spectroscopy of the Normal Human Prostate with an Endorectal Coil and A Double Spin-echo Puls Sequence; In-vivo MR Spectroscopy Reveals Altered Metabolite Content in Malignant Prostate Tissue; The Current Role of MR Imaging in the Local Staging of Prostate Cancer, Future Research and Future Prospects; Summary and Conclusions; Endorectal Coil MR Imaging, Recent Developments