Artifacts 01 伪影01

Ascending Aorta 升主动脉

Fig. 1. 2d parasternal long axis aortic valve 图1. 2d胸骨旁长轴主动脉瓣

Fig. 2. m-mode aortic valve & LA 图2. M型主动脉瓣及左房
Fig. 3. 2d parasternal long axis ascending aorta 图3. 2d胸骨旁长轴升主动脉
Fig. 4. m-mode ascending aorta and artifact 图4. M型升主动脉及伪影
Fig. 5. 2d measurement ascending aorta 图5. 升主动脉2d测量

(tt2624) M, 59 y. Mechanical AV prosthesis (Carbomedics #25) (Fig 1-2). Vascular graft in ascending aorta (Fig. 5). Linear artifact in the LA cavity (Fig 3-4; white short arrow in Fig. 4), replicating the anterior wall of the vascular graft: the distance between the transducer and the artifact doubles approximately the distance between the transducer and the anterior aortic wall (53 mm).
主动脉瓣机械人造瓣(Carbomedics #25) (图1-2)。升主动脉人工血管 (图5)。左房腔中的线形伪影(图3-4; 图4中的白色短箭头), 重复了人工血管的前壁: 探头到伪影的距离大约是探头到主动脉前壁的二倍 (53 mm)。