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The diagnostic imaging equipment and image acquisition speed of sound manner using sound velocity measurement method using the acoustic microscope, the sound speed measurement device, the acoustic microscope
The diagnostic imaging equipment and image acquisition speed of sound manner using sound velocity measurement method using the acoustic microscope, the sound speed measurement device, the acoustic microscope
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机译:诊断成像设备和使用声波显微镜的声速测量方法,声速测量装置,声波显微镜的声音方式的图像采集速度
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摘要
PROBLEM TO BE SOLVED: To correct the inclination of a preparation by a signal processing system.;SOLUTION: Coefficients a, b, c used in a plane equation of the preparation are calculated on the basis of values Zo to Z2 of three points Po to P2 before acquiring sonic speed information for diagnosing biomedical tissue. A value Zp (inclination) in the z-axis direction at an arbitrary point on a plane of the mount on which the biomedical tissue is placed, can be calculated on the basis of the coefficients a, b, c. By using the calculated value as a correction value in calculating a thickness of the biomedical tissue, the thickness of the biomedical tissue at a measurement point can be accurately calculated in a state of considering the inclination of the preparation to the ultrasonic wave outgoing direction. Thus the inclination can be corrected by processing a signal. The sonic speed at the measurement point can be accurately calculated by calculating the thickness of the biomedical tissue with high accuracy. A sonic speed image of the biomedical tissue can be obtained by drawing the sonic speed values as an equi-sonic speed line at each measurement point. Thus the accuracy of the sonic speed image can be remarkably improved, and the biomedical tissue can be precisely diagnosed.;COPYRIGHT: (C)2006,JPO&NCIPI
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