The tumor displayed the character of low echo (21/32), obscure boundary(22/32), vascular invasion (26/32), pancreatic duct and common bile duct dilation (19/36).
The size, echo, boundary and color flow signals of renal lesions were observed by conventional US.
常规超声检查观察肾占位大小、回声、边界、有无彩色血流信号。
3
Ultrasonic encounter impurities or boundary surface will produce significant reflection form reflex into echo, encounter moving objects can produce doppler effect.