Diagnostic Value of 128-slice Spiral CT Combined with Virtual Colonoscopy for Colorectal Cancer

The objective of this study was to evaluate the diagnostic value of 128-slice spiral CT combined with virtual colonoscopy in diagnosis of colorectal cancer.We retrospectively analyzed 45 patients of colorectal diseases who underwent definition AS+128-slice spiral CT combined with virtual colonoscopy after bowel preparation and gas injection to evaluate the clinical diagnostic value of this technology.All the patients received electronic colonoscopy and were confirmed by pathology.In total,colorectal cancer was confirmed in 42 cases and inflammation in 3 cases.Diagnostic results shows:there were 17 cases of lump,10 cases of infiltration,6 cases of ulcer,9 cases of mixed type,4 cases of liver metastases,and 36 cases of lymph node metastasis.There was no significant difference between 128-slice spiral CT combined with virtual colonoscopy and electronic colonoscopy in detection,localization and characterization of colorectal tumors.CT virtual endoscopy has great advantages in observing the invasion around the lesion and the presence or absence of metastasis in distant organs and lymph node metastasis.It is also possible to understand the shape of the lesion in the intestinal lumen and the length of the lesion involving the lumen of the intestine.

肺磨玻璃结节样癌性病灶128层高速CT低剂量诊断价值

目的研究采用128层Philips高速CT诊断肺磨玻璃结节样癌性病灶的诊断价值。方法选取肺磨玻璃结节样癌性病灶的患者80例,按照随机分为对照组和观察组,每组40例。观察组采用128层Phillips高速CT进行诊断,对照组采用普通6排螺旋CT筛查。结果观察组诊断的准确率、诊断的敏感性、特异性均明显高于对照组(P<0.05)。结论采用128层Philips高速CT诊断肺磨玻璃结节样癌性病灶有较高的准确性、敏感性和特异性,值得推广应用。

128层螺旋CT尿路造影对上尿路梗阻性疾病的诊断价值

目的探讨128层螺旋CT尿路造影（128-slicespiralCTU）在上尿路梗阻性疾病诊断中的价值。方法搜集经B超或静脉肾盂造影（IVU）检查提示上尿路梗阻而原因不明的患者30例，均行128层螺旋CT尿路造影检查，在工作站对获得的图像进行多平面重建（MPR）、容积再现（VRT）及最大密度投影（MIP）等三维后处理，获得泌尿系立体图像。结果30例中上尿路结石15例，先天性畸形7例，肾盂输尿管癌2例，输尿管炎性狭窄3例，邻近器官病变导致的上尿路梗阻1例，以上病例均经手术或输尿管镜检证实，2例未确诊，诊断准确率为93．33％。结论128-slicespiralCTU通过MPR、VRT、MIP、CPR技术多角度观察能够更加清晰地显示出导致上尿路梗阻的病变及其形态，在上尿路梗阻病变诊断方面有独特的优势。