摘要
目的比较MRI及CT诊断前列腺癌的准确率。方法对48例经手术或穿刺病理证实的前列腺癌患者均行CT平扫及增强扫描,CT增强行双期动态扫描;MRI行常规扫描。将CT诊断结果与MRI诊断结果进行比较。结果 48例患者中,A期前列腺癌1例,B期前列腺癌14例,C期前列腺癌15例,D期前列腺癌18例。在15例A期或B期前列腺癌患者中,CT平扫和增强扫描直接确诊7例,诊断符合率为46.7%;MRI平扫直接确诊为13例,诊断符合率为86.7%,两者诊断符合率比较差异有统计学意义(P<0.05)。在33例C期或D期前列腺癌患者中,CT平扫和增强扫描直接确诊31例,诊断符合率为93.9%,MRI平扫直接确诊为32例,诊断符合率为96.97%,两者诊断符合率比较差异无统计学意义(P>0.05)。结论对于A或B期前列腺癌的诊断,MRI较CT有明显优势;对于C期或D期前列腺癌的诊断,CT和MRI无明显差异。
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（P0.05）.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（P0.05）.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.
出处
《南昌大学学报（医学版）》
CAS
2012年第2期37-39,43,共4页
Journal of Nanchang University：Medical Sciences
