Harter L P, Gross B H, Callen P W, Barth R A
J Ultrasound Med. 1982 Oct;1(8):315-8. doi: 10.7863/jum.1982.1.8.315.
Ultrasonograms of 38 patients and computed tomograms of 21 patients with abdominal aortic aneurysms (AAA) were retrospectively reviewed. In 69 per cent of cases in which intraluminal thrombus was demonstrated, sonography revealed a high-amplitude linear echo along the luminal surface of the thrombus. Although calcification could be easily visualized within the aortic wall by computed tomography, it was seen at the lumen--thrombus interface in only one patient. In addition, a resected aortic aneurysm with thrombus, when scanned in a water bath in vitro, demonstrated this echo pattern at the luminal-thrombus interface on sonography but revealed no calcification on pathologic examination. An explanation of the source of this echo pattern and a caution against misinterpretation of this echo pattern as the aortic wall in a dissection or leaking aneurysm with hematoma are presented.
对38例腹主动脉瘤（AAA）患者的超声图像和21例患者的计算机断层扫描图像进行了回顾性分析。在69%显示腔内血栓的病例中，超声检查显示血栓腔表面有高振幅线性回声。虽然通过计算机断层扫描可以很容易地看到主动脉壁内的钙化，但仅在1例患者的管腔-血栓界面处可见。此外，一个切除的带有血栓的主动脉瘤，在体外水浴中扫描时，超声检查显示管腔-血栓界面处有这种回声模式，但病理检查未发现钙化。本文对这种回声模式的来源进行了解释，并提醒不要将这种回声模式错误地解释为夹层或伴有血肿的渗漏性动脉瘤中的主动脉壁。
