Mitsuru Nakao

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BACKGROUND Two-dimensional (2D) echocardiography is routinely used in evaluating patients with mitral valve prolapse but requires a systematic examination for accurate assessment of the involved lesion of mitral valve prolapse, because the sonographer is required to mentally reconstruct two-dimensional images into three dimensions. Recently, freehand(More)
OBJECTIVES Patients with electrocardiography (ECG) abnormalities sometimes present without obvious symptoms or abnormal physical findings. In some cases, echocardiography fails to reveal abnormalities compatible with the ECG findings because of poor echocardiographic image quality. New intravenous contrast agents now enable opacification of the left(More)
OBJECTIVES The feasibility of detecting persistent regional left ventricular abnormal relaxation due to myocardial ischemia using strain echocardiography several minutes after exercise was investigated. METHODS Consecutive 27 patients (mean age 65 +/- 9 years, 21 males, 6 females) with suspected coronary artery disease were enrolled. Strain(More)
BACKGROUND Strain echocardiography has enabled quantification of regional myocardial systolic function objectively and is less influenced by tethering effects and cardiac translational artifact than Doppler tissue imaging. Although strain echocardiography has been applied for the detection of inducible ischemia during dobutamine stress, it has not been(More)
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