多层螺旋CT 增强扫描及后处理成像在膀胱癌诊断中的价值

摘要

Objective To discuss the diagnostic value of enhancement scanning combined with post-processing imaging technique with spiral CT in the bladder cancers .Methods Thirty-six patients with bladder cancers were diagnosed by pathological findings ,all of whom were examined by enhancement scanning .The data were transfer to workstation ,the multi-planar reconstruction and virtual endoscopy were progressed ,the characteristics of CT images were observed .The results were compared with pathological findings in a double-blind mode .Results 24 cases of tumor were located on the trigone of urinary bladder ,5 cases on the right side and 7 cases on left side .The sensitivity of the axial ,MPR and CTVE images in detecting bladder cancers were 97 .2% ,94 .4% ,95 .7% respectively .The axial image offered enough intramural and extravesical information ,MPR can directly demonstrate the origin of the lesion and relation with the ureter ,CTVE can display the surface morphology of the tumor ,and relationship with ureteric orifices .Conclusion CT enhanced scan-ning axial images combined with multi-planar reconstruction and virtual endoscopy are of great value on diagnosis of blad-der cancer .%目的：探讨螺旋CT增强扫描结合后处理成像技术在膀胱癌中的诊断价值。方法分析经手术病理证实为膀胱癌的患者36例，术前均行螺旋C T增强扫描，将原始容积数据传至工作站，进行多平面重建（M PR ）、仿真内镜成像（VE），观察其CT影像特点，采用双盲对比，与病理结果对照分析。结果肿瘤位于膀胱三角区24例，右侧壁5例，左侧壁7例。轴位、MPR及CTVE在探测膀胱肿瘤的敏感性分别为97．2％，94．4％，95．7％，增强轴位图像能够提供丰富的膀胱壁内外信息，M PR能够直接显示肿瘤起源和膀胱外侵犯及与输尿管的关系，V E可以显示肿瘤表面形态及和输尿管开口关系。结论螺旋CT增强扫描轴位图像结合MPR和CTVE成像技术，对膀胱癌具有重要诊断价值。