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Non-contact acoustic method for the simultaneous measurement of thickness and acoustic properties of biological tissues |
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| Authors: | H Okawai M Tanaka F Dunn |
| Institution: | a Research Institute for Chest Diseases and Cancer, Tohoku University, 4-1 Seiryo-machi, Sendai 980, Japan b Medical Engineering Laboratory, Sendai Kosei Hospital, 4 Hirosemachi, Sendai 980, Japan c Bioacoustics Research Laboratory, University of Illinois, 1406 West Green Street, Urbana, Illinois 61801, USA |
| Abstract: | The frequency dependence of the magnitude and phase shift of reflected waves from a thin tissue specimen has been found to yield characteristics patterns as a function of the specimen thickness. By analysis of those characteristic patterns, the specimen thickness can be determined so that the attenuation constant and the sound speed can be obtained by a non-contact procedure. The method is demonstrated in the frequency range 100 MHz to 200 MHz, using a scanning acoustic microscope and approximately 10 μm thick myocardial tissue samples of human origin, one paraffin embedded. |
| Keywords: | biological tissues measurement acoustic properties |
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