Increasing Bandwidth of Ultrasound Radio Frequency Echoes Using Wiener Filter for Improvement of Accuracy in Measurement of Intima–Media Thickness
作者： Sho Kageyama , Hideyuki Hasegawa , Hiroshi Kanai
关键词: Brightness 、 Radio frequency 、 Medical diagnostic 、 Bandwidth (signal processing) 、 Intima-media thickness 、 Acoustics 、 Ultrasound 、 Ultrasonic sensor 、 Materials science 、 Wiener filter 、 General Engineering 、 General Physics and Astronomy
摘要: It is very important to make early diagnoses of atherosclerosis for the prevention lifestyle-related diseases. The intima–media thickness (IMT) used as a diagnostic index cerebrovascular diseases and throughout body including coronary artery. In field medical diagnostics, ultrasonic equipment using pulse–echo method widely used. conventional equipment, images are obtained by receiving echoes converting their amplitudes into brightness. general, B-mode degraded narrow-band characteristics transducer. present study, was proposed shortening lengths received pulses from an object interest Wiener filter. As result, were shortened visibility interfaces complex carotid arterial wall improved method, which realizes accurate measurement IMT.
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