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目的探讨彩色三维多普勒超声对肝脏实性占位病变形态、大小及内部血供的诊断价值。方法对常规灰阶超声显示有肝脏实性占位病变的患者28例,采用腹部彩色三维超声成像仪自由臂方式对肝脏病变处及其周围进行扫查取像,取样结束后在三维超声仪上进行脱机后处理,以病变处为中心,对X、Y、Z 3个互相垂直切面上的病变范围进行勾划,生成三维的肿瘤球体,计算程序可自动计算球体体积、内部血流容积及两者之比。结果肿瘤体积最大为117 cm3,最小为2．0 cm3。三维超声可显示肿瘤供给血管走行及其分支情况,并可透视肿瘤内部血管分布情况。部分病变在二维图像上显示为“晕环”、“绕行”的肿瘤周边血管,在三维重建后显示出“抱球征”,展现血管全貌,进入肿瘤内部后呈现出“提篮征”,发出多支小血管,显示了恶性肿瘤的血供特征。结论彩色三维超声可对肝脏实性占位性病变的形态、体积、周边及内部血供进行综合评价,丰富了超声诊断依据。
Objective To investigate the diagnostic value of solid color Doppler ultrasound in the morphology, size and internal blood supply of solid lesions in the liver. Methods Twenty-eight patients with solid lesions of the liver were observed by conventional gray-scale sonography. The abdomen color three-dimensional ultrasound imager was used to scan the lesion area and its surroundings. After sampling, Take off-line post-processing, centering on the lesion, and delineating the lesion extent on the three perpendicular planes of X, Y, and Z to generate three-dimensional tumor spheres. The calculation program can automatically calculate the volume of the sphere, the internal blood flow volume, The ratio between the two. Results The maximum tumor volume was 117 cm3 and the minimum was 2.0 cm3. Three-dimensional ultrasound can show the tumor to provide blood vessels and their branches, and can be perspective of the internal vascular distribution of the tumor. Some lesions in the two-dimensional images showed “halo”, “detour” of the tumor peripheral blood vessels, after three-dimensional reconstruction showed “holding the ball sign” to show the blood vessels in the whole picture, after entering the interior of the tumor showed “basket sign” Issued a number of small blood vessels, showing the characteristics of blood supply of malignant tumors. Conclusion The color three-dimensional ultrasound can comprehensively evaluate the morphology, volume, peripheral and internal blood supply of liver-specific space-occupying lesions, and enrich the basis of ultrasound diagnosis.