Biaggi Patric, Greutmann Matthias, Crean Andrew, Mezody Melitta, Rakowski Harry
Division of Cardiology, Toronto General Hospital, University Health Network, Peter Munk Cardiac Program, University of Toronto, G3-546, 200 Elisabeth Street, Toronto ON M5G 2C4, Canada.
Eur J Echocardiogr. 2010 Jun;11(5):E19. doi: 10.1093/ejechocard/jep225. Epub 2010 Jan 6.
A routine chest X-ray in a 78-year-old female patient suggested a retained vascular catheter in the right ventricle (RV). On transthoracic echocardiography, a prominent linear echo was found in the RV and the patient was referred for cardiac computed tomography and magnetic resonance imaging. Although neither of these tests showed evidence of a retained foreign body in the RV, they could not clarify the nature of the linear structure within the RV cavity. Finally, transesophageal echocardiography, using a matrix array three-dimensional probe solved the mystery: the linear structure in question within the RV was a large papillary muscle with attachments to the anterior leaflet of the tricuspid valve and an unusual origin from the interventricular septum.
一名78岁女性患者的常规胸部X光检查提示右心室（RV）有一根留置的血管导管。经胸超声心动图检查发现右心室内有一条明显的线性回声，该患者被转诊进行心脏计算机断层扫描和磁共振成像。尽管这两项检查均未显示右心室内有留置异物的证据，但它们无法明确右心室腔内线性结构的性质。最后，使用矩阵阵列三维探头的经食管超声心动图解开了谜团：右心室内的相关线性结构是一块大的乳头肌，附着于三尖瓣前叶，且起源于室间隔，较为罕见。
