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目的应用彩色多普勒超声观察弥漫性胰腺癌结构及血流变化,探讨其声像特征。方法应用彩色超声多普勒诊断仪,探头频率2.5～5MHz,经穿刺或剖腹探查组织活检,观察其胰腺大小、形态、结构、内部血流变化,及其周围脏器、腹腔、腹膜后有无异常。结果 21例胰腺癌患者光点均粗糙,分布明显欠均,其中9例(42.9%)表面略显示凹凸不平;15例(71.4%)胰腺癌患者整个实质为低回声,6例(28.6%)回声变化不明显;3例(14.3%)胰腺癌患者可见细小短线状血流,18例(85.7%)为星点状血流;少部分出现周围脏器的侵犯,淋巴结转移及腹水等。结论弥漫性胰腺癌形态无特殊变化,内部结构及血流发生不同程度改变,有其明显的声像特征。
Objective To observe the structure and blood flow changes of diffuse pancreatic cancer by color Doppler ultrasonography, Methods The color Doppler diagnostic apparatus was used. The frequency of the probe was 2.5-5 MHz. The biopsy of the pancreas was performed by puncture or laparotomy. The pancreatic size, morphology, structure and internal blood flow were observed, and the surrounding organs, abdominal cavity and retroperitoneal abnormal. Results In 21 patients with pancreatic cancer, the spots were rough and the distribution was apparently undeveloped. Among them, 9 cases (42.9%) showed slight unevenness on the surface; 15 (71.4%) patients had low echo and 6 (28.6% Echocardiographic changes were not obvious. Three cases (14.3%) of pancreatic cancer showed small short blood flow, 18 cases (85.7%) had star-shaped blood flow, and a small number of peripheral organ invasion, lymph node metastasis and ascites. Conclusions There is no special change in the shape of diffuse pancreatic cancer. The internal structure and blood flow change to varying degrees, with obvious features of pancreas.