Yoshito Anno
Yamaguchi University
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American Journal of Cardiology | 1990
Keiko Morimoto; Masunori Matsuzaki; Yoichi Tohma; Shiro Ono; Nobuaki Tanaka; Hiroyuki Michishige; Kazuya Murata; Yoshito Anno; Reizo Kusukawa
Transesophageal echocardiography (horizontal sector scan) was performed in 11 patients with secundum atrial septal defect (ASD). In all 11 patients, transesophageal echocardiography presented the definite visualization of the defect and a clear laminar shunt flow that showed its 2 peaks in late systole and late diastole. We estimated the size of ASD and a shunt volume across the defect by using transesophageal echocardiography. The defect size determined by transesophageal echocardiography was correlated with the surgical measurement (horizontal width, r = 0.92, p less than 0.001; vertical length, r = 0.85, p less than 0.01). A significant high correlation was shown between the shunt volume measured by transesophageal echocardiography and that by Ficks method (r = 0.87, p less than 0.01). There was no significant correlation between the pulmonary to systemic flow volume (ratio) and the mean shunt flow velocity across ASD, although a high linear correlation was observed between the pulmonary to systemic flow ratio and the defect size in horizontal direction (r = 0.82, p less than 0.01). Transesophageal echocardiography used for diagnosis and quantitative evaluation of ASD could be performed easily and satisfactorily within 10 minutes. Thus, transesophageal echocardiography is a useful method in evaluation of the defect size and the shunt flow volume of ASD. The mean shunt flow velocity was not a reliable index for estimating the shunt flow volume. The defect size might be a valuable determinant of left-to-right shunt volume in ASD.
American Journal of Cardiology | 1983
Yoichi Toma; Yasuo Matsuda; Masunori Matsuzaki; Yoshito Anno; Takako Uchida; Naoshige Hiroyama; Masaaki Tamitani; Toshiaki Murata; Fumio Yonezawa; Kohshiro Moritani; Kazuhiro Katayama; Hiroshi Ogawa; Reizo Kusukawa
The sizes of both left atrial (LA) and right atrial (RA) cavities were assessed in 16 patients by esophageal echocardiography and biplane cineangiography. The changes in echocardiographic dimension and cineangiographic volume during 1 cardiac cycle showed excellent correlations in both atria. In the left atrium, the relation between the echocardiographic dimension and the cineangiographic volume was significant (r = 0.83) and was fitted by the following power function: LA volume (ml) = 0.94 X LA dimension (mm) 1.24. In the right atrium, the relation between the dimension and the volume was significant; RA volume (ml) = 0.015 X RA dimension (mm) 2.34 (r = 0.95). Thus, esophageal echocardiography is a useful method for evaluating LA and RA size and simultaneously observing of both atria.
American Heart Journal | 1985
Masunori Matsuzaki; Yoichi Tohma; Yoshito Anno; Naoshige Hiroyama; Fumio Yonezawa; Masaaki Tamitani; Toshiaki Maeda; Kazuhiro Katayama; Yasuo Matsuda; Toshiaki Kumada; Reizo Kusukawa
Japanese Circulation Journal-english Edition | 1989
Nozomu Ohtani; Masunori Matsuzaki; Yoshito Anno; Hiroshi Ogawa; Yasuo Matsuda; Reizo Kusukawa
Japanese Circulation Journal-english Edition | 1989
Keiko Morimoto; Masunori Matsuzaki; Yoshito Anno; Yoshinori Tanimoto; Yurio Kobayashi; Kiyoshi Takashiba; Yakashi Yamagishi; Reizo Kusukawa
Japanese Circulation Journal-english Edition | 1991
Toshiaki Maeda; Masunori Matsuzaki; Kohtaro Shiomi; Backmoon Lee; Kohzaburo Seki; Hidetoshi Naito; Tadao Yorozu; Yoichi Toma; Yoshito Anno; Reizo Kusukawa
Japanese Circulation Journal-english Edition | 2008
Hideaki Kakura; Yoshito Anno
Japanese Circulation Journal-english Edition | 1990
Hirosi Shigetomi; Masunori Matsuzaki; Yoichi Toma; Yoshito Anno; Hiroyuki Michishige; Reizo Kusukawa
Japanese Circulation Journal-english Edition | 1990
Yuichiro Wasaki; Masunori Matsuzaki; Yoshito Anno; Yoichi Toma; Yasuaki Tomochika; Hiroyuki Michishige; Ikuo Tokisawa; Hideki Nishio; Reizo Kusukawa
Japanese Circulation Journal-english Edition | 1990
Ikuo Tokisawa; Masunoei Matsuzaki; Yoshito Anno; Yoichi Toma; Yasuaki Tomochika; Yuichiro Wasaki; Hiroyuki Michishige; Hisako Fujino; Reizo Kuzukawa