Vibro-acoustography for modal analysis of arterial vessels
Proceedings IEEE International Symposium on Biomedical Imaging - Trang 513-516
Tóm tắt
In order to apply vibro-acoustography for imaging of arteries, a theoretical model of vibro-acoustics of thick arterial vessels is presented. The arterial wall is modeled with the first order shear deformation theory. The fluids outside and inside the artery are modeled with acoustic wave theory. The coupled vibration of arterial tubes is analyzed with the wave propagation approach. The experiments were carried out on a silicone rubber tube in a water tank with a vibro-acoustography system. This system uses the radiation force of ultrasound to vibrate the tube at low frequency and records the resulting response by a laser vibrometer. Both the excitation and measurement are remote and noncontact. The theory has been evaluated against those available in the literature. The measured fundamental frequency is in good agreement with the present theory.
Từ khóa
#Modal analysis #Arteries #Frequency #Ultrasonic variables measurement #Acoustic imaging #Deformable models #Acoustic waves #Acoustic propagation #Optical propagation #RubberTài liệu tham khảo
love, 1952, A Treatise on the Mathematical Theory of Elasticity
fatemi, 2000, Imaging and evaluating the elastic properties of biological tissues, BMUS Bulletin (The British Medical Ultrasound Society), 8, 16
10.1006/jsvi.2000.3139
10.1016/0022-460X(92)90571-E
morse, 1968, Theoretical Acoustics
10.1016/S0003-682X(00)00045-1
10.1088/0031-9155/45/6/304
fatemi, 1998, Ultrasound stimulated vibro-acoustic spectroscopy, Science, 280, 82, 10.1126/science.280.5360.82