Shimbo Mai, Watanabe Hiroyuki, Kimura Shunsuke, Terada Mai, Iino Takako, Iino Kenji, Ito Hiroshi
Department of Cardiovascular and Respiratory Medicine, Akita University School of Medicine, Akita, Japan.
J Clin Ultrasound. 2015 Jan;43(1):64-7. doi: 10.1002/jcu.22167. Epub 2014 May 2.
Real-time three-dimensional transesophageal echocardiography (RT3D-TEE) can provide unique visualization and better understanding of the relationship among cardiac structures. Here, we report the case of an 85-year-old woman with an obstructed mitral prosthetic valve diagnosed promptly by RT3D-TEE, which clearly showed a leaflet stuck in the closed position. The opening and closing angles of the valve leaflets measured by RT3D-TEE were compatible with those measured by fluoroscopy. Moreover, RT3D-TEE revealed, in the ring of the prosthetic valve, thrombi that were not visible on fluoroscopy. RT3D-TEE might be a valuable diagnostic technique for prosthetic mitral valve thrombosis.
实时三维经食管超声心动图（RT3D-TEE）能够提供独特的可视化效果，有助于更好地理解心脏结构之间的关系。在此，我们报告一例85岁女性二尖瓣人工瓣膜梗阻病例，通过RT3D-TEE得以迅速确诊，该技术清晰显示瓣膜小叶卡在关闭位置。RT3D-TEE测量的瓣膜小叶开闭角度与荧光透视测量结果相符。此外，RT3D-TEE还发现人工瓣膜环上存在荧光透视无法显示的血栓。RT3D-TEE可能是诊断人工二尖瓣血栓形成的一项有价值的诊断技术。
