Clinical value of MRI multi b diffusion weighted imaging combined with spectral imaging in the diagnosis of prostate cancer / 中国基层医药

ABSTRACT

Objective:To explore the clinical value of magnetic resonance (MRI) multi-b-value scatter weighted imaging (DWI) combined with spectral imaging (MRS) in the diagnosis of prostate cancer.Methods:From November 2016 to August 2018, 33 patients with prostate cancer and 62 patients with benign prostatic lesions in the People's Hospital of Yongjia County were selected.DWI and MRS scans were performed and compared with pathological findings.Results:The DWI signal intensity of prostate cancer at the b value of 600s/mm 2, 1 000s/mm 2, 2 000s/mm 2 and 3 000s/mm 2 were significantly higher than those of benign prostatic lesions (all P<0.05). With the increase of b value, the sensitivity, specificity and accuracy of DWI in diagnosis of prostate cancer increased, under 3 000s/mm 2, the sensitivity, specificity and accuracy of DWI in the diagnosis of prostate cancer were 87.88%(29/33), 82.26% (51/62) and 84.21%(80/95), respectively.The sensitivity, specificity and accuracy of MRS in diagnosing prostate cancer were 69.70%(23/33), 79.03%(49/62) and 75.79%(72/95), respectively.The (choline+ creatine)/(citrate) (CC/C) value of prostate cancer (2.50±0.94) was significantly higher than that of benign prostatic lesions (0.93±0.23)( t=12.519, P<0.05). The sensitivity, specificity and accuracy of DWI at b value of 3 000s/mm 2 combined with MRS in the diagnosis of prostate cancer were 96.97%(32/33), 88.71%(55/62) and 91.58%(87/95), respectively. Conclusion:DWI combined with MRS has good application value in the diagnosis of prostate cancer.