Yamaguchi T, Kuroki K, Ohyama Y, Ishikawa T
Department of Radiology, St. Marianna University School of Medicine, Yokohama Seibu Hospital, Japan.
Radiat Med. 1998 Mar-Apr;16(2):119-23.
We describe our experience with initial CT scans that failed to demonstrate an intimal flap in the ascending aorta or aortic arch that was subsequently identified on echocardiography, angiography, or MR imaging in four patients. This problem was presumably caused by the flailing motion of a thin intimal flap and localized small dissection in the ascending aorta, or transverse intimal flap within the aortic arch. Radiologists should be aware of this pitfall in CT diagnostic imaging.
我们描述了4例患者的情况，其初次CT扫描未能显示升主动脉或主动脉弓的内膜瓣，但随后在超声心动图、血管造影或磁共振成像中发现了该内膜瓣。这个问题可能是由升主动脉内薄的内膜瓣的扑动运动和局限性小夹层，或主动脉弓内的横向内膜瓣引起的。放射科医生应意识到CT诊断成像中的这一陷阱。
