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目的评价空间复合超声技术在胰头癌和壶腹癌诊断中的作用。方法回顾性分析25例经病理确诊的胰头癌和壶腹癌患者的空间复合超声技术声像,其中胰头癌16例,壶腹癌9例。在原始超声切面图像基础加用空间复合超声,对两组疾病的空间复合超声进行总结、比较,统计超声术前诊断的准确性。结果本组病例超声主要表现:1.壶腹癌瘤体小,易向十二指肠腔突出,中心位于十二指肠腔内;胰头癌的中心则位于胰腺内。2.肿瘤与胆胰管、胰周血管的关系均可清晰显示。3.两管靠近(扩张的胆胰管末端间距小于等于5mm)多见于壶腹癌,而两管分离(扩张的胆胰管末端间距大于)多见于胰头癌。胰头癌和壶腹癌的空间复合超声肿块显示率分别为95%和89%,术前诊断准确率分别为91%和86%。结论空间复合超声技术可以更好展现胰头癌和壶腹癌的影像特征,对术前诊断有较高的价值。
Objective To evaluate the role of spatial composite ultrasound in the diagnosis of pancreatic head cancer and ampullary carcinoma. Methods A retrospective analysis of 25 cases of pathologically diagnosed pancreatic cancer and ampulla of patients with space-based composite ultrasound imaging, including 16 cases of pancreatic cancer, ampulla 9 cases. On the basis of the original ultrasound images, spatial composite ultrasound was used to summarize and compare the spatial composite ultrasound of the two groups of diseases, and the accuracy of preoperative ultrasound diagnosis was analyzed. Results The main manifestations of this group of cases of ultrasound: 1. Ampullary carcinoma tumor small, easy to highlight the duodenal cavity, the center is located in the duodenum; pancreatic cancer is located in the center of the pancreas. 2. Tumor and bile duct, peripancreatic vascular relationship can be clearly shown. 3 near the two (dilated bile duct end spacing less than or equal to 5mm) more common in the ampullary carcinoma, and two separate (dilated bile duct end spacing greater than) more common in pancreatic cancer. The rates of spatial composite ultrasound of pancreatic cancer and ampullary carcinoma were 95% and 89%, respectively. The accuracy of preoperative diagnosis was 91% and 86% respectively. Conclusion Spatial composite ultrasound can better show the imaging features of pancreatic cancer and ampullary carcinoma, and has high value in preoperative diagnosis.