Neufang K F, Beyer D
Rofo. 1983 Dec;139(6):672-6. doi: 10.1055/s-2008-1055972.
The superior mesenteric artery (SMA) can be demonstrated by ultrasonography under adequate conditions as a tubular liquid structure of 3 to 7 mms. in diameter, which parallels the abdominal aorta at a distance of 2 to 5 mms. The aortomesenteric distance is higher in patients with arteriosclerosis or aneurysm of the abdominal aorta, enlarged pre-aortic lymph nodes or other retroperitoneal masses. Its measurement can be recommended for quantitative assessment of retroperitoneal lymphadenopathy. Anatomic variations and postoperative changes may alter the course of the SMA. Measurement of the aortomesenteric angle is of no practical value.
在适当条件下，超声可显示肠系膜上动脉（SMA）为直径3至7毫米的管状液性结构，与腹主动脉平行，距离为2至5毫米。腹主动脉硬化或动脉瘤、主动脉前淋巴结肿大或其他腹膜后肿块患者的主动脉肠系膜距离更高。推荐测量该距离以定量评估腹膜后淋巴结病。解剖变异和术后改变可能会改变SMA的走行。测量主动脉肠系膜角没有实际价值。
