Is MRI accurate in diagnosing prostate cancer?

MRI is highly accurate in diagnosing prostate cancer and can clearly show the structure of the prostate and the infiltration of surrounding tissues.

MRI can effectively distinguish prostate cancer from benign hyperplasia tissue through multi-parameter imaging technology. T2-weighted images can show low-signal areas of tumors, diffusion-weighted imaging can reflect abnormal cell density, and dynamic contrast-enhanced scans can evaluate hemodynamic changes. The combined application of these technologies is of great value in localizing and staging prostate cancer. The Prostate Imaging Reporting and Data System scoring standard further improves diagnostic consistency, and clinical studies have shown that its sensitivity and specificity for clinically significant prostate cancer are both ideal.

Rarely, prostatitis, bleeding, or post-treatment changes may cause false-positive results. Small-volume tumors or low-grade tumors may be missed because the signal difference is not obvious. Some patients may have metal implants or claustrophobia that may limit the examination. Combined with prostate-specific antigen detection or targeted puncture, the diagnostic efficiency can be improved.

It is recommended that patients with suspected prostate cancer avoid strenuous exercise for 3 days before the MRI examination and cooperate with breathing instructions during the examination. The examination results need to be interpreted jointly by the imaging department and the urologist, and combined with clinical manifestations and other examinations for comprehensive judgment. Men over 45 years old should conduct regular prostate health screenings to detect abnormal signals in time.