Case Report
A Chronic, Massive Thrombus in the Right Main Pulmonary Artery
A Case Report and Echocardiographic Analysis
1999 Volume 63 Issue 4 Pages 312-314
Details
1999 Volume 63 Issue 4 Pages 312-314
A chronic, large thrombus in the right main pulmonary artery (PA) was detected in a 54-year-old woman with a history of surgical repair of atrial septal defect. Color flow imaging revealed a prominent red signal along the right border of the markedly dilated PA. Pulsed Doppler echocardiography showed that the red signal was caused by flow reversal occurring during systole. According to the physics of blood flow, flow reversal probably represents secondary, helical flow, which may be related to thrombus formation. (Jpn Circ J 1999; 63: 312 - 314)
