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The Technology of Miniature Acoustic Element Arrays
Ultrasonic Imaging Using TwoDimensional Transducer Arrays
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abnormal analysis angiograms angiographic angle apex applications array assessment axis beam biplane blood flow calculated camera cardiac cycle Cardiology cardiovascular chamber chest circuit Circulation clinical collimation configuration contrast contrast medium coronary artery cross section cross-sectional density detection detector determined developed diagnostic diameter diastolic dimensions display Doppler dynamic echo echocardiography ejection fraction electronic film flowmeter fluorescent screen fluoroscopic frame frequency function heart image intensifier injection left ventricle left ventricular left ventricular volume lumen measure Medicine ment method mitral valve myocardial infarction myocardium normal obtained output patients plane position pressure projection quantitative radionuclide real-time reconstruction recorded regional resolution roentgen sample volume scan segments shown in Figure signal spatial Stanford stenosis stroke volume structures studies systolic technique three-dimensional tion trans transducer ultrasonic ultrasound vascular velocity venous vessel video image visualization wall motion x-ray x-ray photon