Pharr Jennifer R, West Michael B, Kusumoto Fred M, Figueredo Vincent M
Lovelace Medical Center, Albequerque, 87108, USA.
J Am Soc Echocardiogr. 2002 Jul;15(7):753-5. doi: 10.1067/mje.2002.119163.
The crista terminalis is a fibromuscular ridge formed by the junction of the sinus venosus and primitive right atrium. In these case reports, transthoracic echocardiography suggested the presence of a right atrial mass. However, subsequent transesophageal echocardiography revealed that the "right atrial mass" was actually a prominent crista terminalis. An understanding of the anatomy and the echocardiographic appearance of a prominent crista terminalis will minimize the misdiagnosis of this structure.
界嵴是由静脉窦和原始右心房交界处形成的纤维肌性嵴。在这些病例报告中，经胸超声心动图提示右心房有肿物。然而，随后的经食管超声心动图显示，“右心房肿物”实际上是一个明显的界嵴。了解明显界嵴的解剖结构和超声心动图表现将最大限度减少对该结构的误诊。
