MRI diagnosis of bone and seminal vesicle metastasis in prostate cancer

Objective:To study the value of MRI in the diagnosis of bone and seminal vesicle metastasis of prostate cancer, and to provide reference for clinical diagnosis.Methods: A total of 136 cases of prostate cancer treated in our hospital in December 2017 December 2015 were collected. MRI prostate and peripheral tissue, pelvic and spinal scan were performed before the puncture biopsy, and systematic biopsy of the prostate was performed at the end. The specificity, accuracy and sensitivity of MRI scan in the diagnosis of bone and seminal vesicle metastasis of prostate cancer were compared with the pathological diagnosis as gold standard. Results: The pathological diagnosis of 136 cases of prostate cancer occurred in 34 cases (25%), including 16 cases of seminal vesicle metastasis (10.3%), and 20 cases of bone metastases (14.7%). A total of 42 cases of metastasis (30.9%) were diagnosed by MRI, of which 20 cases (14.7%) were metastases of seminal vesicle and 22 cases of bone metastases (16.2%). The specificity of MRI for the diagnosis of prostate cancer seminal vesicle and bone metastases was 95.7%, the sensitivity was 76.2%, and the accuracy was 89.7%.Conclusion: Compared with pathological biopsy, MRI has high specificity and accuracy in diagnosing seminal vesicle metastasis and bone metastasis in patients with prostate cancer, but the sensitivity is deficient. It is worth promoting in clinic.