Basic Science and Instrumentation Scientific Session 2
3D ultrasound tomographic osteoporosis imaging via Biot wave theory
Sunday, April 7, 2024
2:54pm – 3:06pm
Location: 410
Authors: James Wiskin, QT Imaging
A novel method for the measurement of osteoporosis is proposed based on Biot wave propagation model in porous media with concomitant “slow” compression wave independent of standard compressional or shear waves in elastic media (elastography). 3D ultrasound tomography produces sub mm resolution quantitatively accurate speed of sound images in a cadaver knee. Tissue values are compared with literature values favorably (within 1.7%) and speed of sound interior to bone is measured and shown to coincide with Biot slow wave and marrow. This verifies the possibility of ultrasound tomography using the Biot wave which is independent of shear or standard compressional waves. This will enable the determination of Biot parameters including porosity and tortuosity which are related to osteoporosis. Heretofore the Biot wave has been measured independently ex vivo in bone, however here we show the capability to utilize this previously unused wave mode in ultrasound tomography.