Spies J B, Hricak H, Slemmer T M, Zeineh S, Alpers C E, Zayat P, Lue T F, Kerlan R K, Madrazo B L, Sandler M A
AJR Am J Roentgenol. 1984 Feb;142(2):341-6. doi: 10.2214/ajr.142.2.341.
Eleven segmental and eight total renal artery occlusions were evaluated by sonography in transplanted kidneys of 19 adult mongrel dogs. The segmental occlusions were serially scanned daily or every other day for up to 35 days. The total occlusions were scanned daily for up to 10 days. Each occlusion was confirmed angiographically, and kidneys were examined pathologically. Acute segmental renal artery occlusion produces a sequence of sonographic changes, beginning with a focal hypoechoic mass at 24 hr, which stays unchanged for 5-7 days. At 7 days, internal echoes appear, and the infarct slowly consolidates to an echogenic, slightly depressed focus at 17 days. Total renal artery occlusion produced no appreciable change in cortical echogenicity and only slight increase in size. Acute segmental renal infarction can be detected early in its course and demonstrates a sequence of changes that may aid in dating the infarct. Total renal infarction may appear normal sonographically, and further studies are needed to confirm that diagnosis.
通过超声检查评估了19只成年杂种犬移植肾中的11处节段性和8处完全性肾动脉闭塞情况。节段性闭塞每天或隔天进行连续扫描，最长达35天。完全性闭塞每天扫描，最长达10天。每次闭塞均通过血管造影确认，并对肾脏进行病理检查。急性节段性肾动脉闭塞会产生一系列超声变化，开始于24小时时出现局灶性低回声团块，该团块在5 - 7天内保持不变。在7天时，内部回声出现，梗死灶在17天时缓慢巩固为一个回声增强、略有凹陷的病灶。完全性肾动脉闭塞在皮质回声方面未产生明显变化，仅大小略有增加。急性节段性肾梗死在病程早期即可被检测到，并呈现出一系列有助于确定梗死时间的变化。完全性肾梗死在超声检查中可能看似正常，需要进一步研究以证实该诊断。
