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Cross-sectional echocardiographic diagnosis of large left atrial tumor and extra-cardiac tumor compressing the left atrium.:Limitation of M-mode echocardiography to distinguish the two lesions Takane Owaki 1 , Irfan Sabah 1 , Hiroshi Kato 1 , Koji Yanagihara 1 , Fukumaru Okumachi 1 , Yoshihiro Takagi 1 , Kiyoshi Yoshida 1 , Junichi Yoshikawa 1 , Kiichiro Tanemoto 2 1Department of Cardiology, Kobe Municipal Central Hospital 2Department of Medicine, Kobe Rosai Hospital pp.777-781
Published Date 1979/7/15
DOI https://doi.org/10.11477/mf.1404203405
  • Abstract
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A case with left atrial fibrosarcoma arising from the posterior left atrial wall and two cases with extra-cardiac tumor compressing the left atrium were studied by M-mode echocardiography and cross-sectional echocardiography. In all cases, M-mode echocardiography revealed a mass of echos just behind the aorta and did not distinguish left atrial tumor from extra-cardiac tumor. By contrast, cross-sectional echocardiography allowed direct visualization of localization, size and movement of tumor in each of the three cases and contributed to distinguish the two lesions. This study indicates that cross-sectional echo-cardiography is more sensitive than M-mode echocardiography for the diagnosis of large left atrial tumor and extra-cardiac tumor compressing the left atrium.


Copyright © 1979, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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