Abstract：Objective To compare the accuracy rates of MRI and CT for the diagnosis of prostate cancer.Methods Forty-eight patients with surgery or biopsy proven prostate cancer underwent plain CT,contrast-enhanced CT,routine MRI,and dynamic contrast-enhanced dual-phase CT scan.CT findings were compared with MRI results.Results Of the 48 patients,stage A prostate cancer was diagnosed in 1,stage B prostate cancer in 14,stage C prostate cancer in 15,and stage D prostate cancer in 18.Stage A or B prostate cancer was directly confirmed by plain and contrast-enhanced CT in 7 of 15 patients(46.7%) and by MRl in 13(86.7%),and the diagnosis compliance rates were statistically different(P<0.05).Stage C or D prostate cancer was directly confirmed by plain and contrast-enhanced CT in 31 of 33 patients(93.9%) and by MRl in 32(96.97%),but the diagnosis compliance rates were not significantly different(P>0.05).Conclusion MRI is superior to CT in diagnosing stage A or B prostate cancer.However,there were no obvious differences in the diagnosis of stage C or D prostate cancer between CT and MRI.
2012, Vol. 52 
