Hagiwara Yuta, Sasaki Rie, Shimizu Takahiro, Soga Kaima, Hatada Chihiro, Miyauchi Motoki, Okamura Takanori, Sakurai Masaru, Akiyama Hisanao, Hasegawa Yasuhiro
Division of Neurology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan.
Department of Neurology, St. Marianna University School of Medicine, Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan.
J Med Ultrason (2001). 2018 Oct;45(4):665-669. doi: 10.1007/s10396-018-0883-0. Epub 2018 May 17.
Superb microvascular imaging (SMI) reduces motion artifacts significantly and allows visualization of low-velocity blood flow in vessels; thus, thrombi are clearly demonstrated compared to conventional B-mode and color Doppler imaging. Ultrasonographic images of the lower extremities of a 69-year-old woman with acute ischemic stroke complicated with deep vein thrombosis (DVT) are presented. Because SMI allows visualization of low-velocity blood flow, echo contrast between the thrombus and the surrounding flow makes it possible to clearly visualize the thrombus. SMI is a useful method to evaluate DVT, especially early after thrombus formation when it is difficult to delineate size and length because of echolucency.
超微血管成像（SMI）显著减少运动伪影，并能显示血管内的低速血流；因此，与传统B模式和彩色多普勒成像相比，血栓能更清晰地显示。本文展示了一名69岁急性缺血性中风合并深静脉血栓形成（DVT）女性患者下肢的超声图像。由于SMI能显示低速血流，血栓与周围血流之间的回声对比使得清晰显示血栓成为可能。SMI是评估DVT的一种有用方法，尤其是在血栓形成早期，由于回声透亮而难以描绘血栓大小和长度的时候。
