Abstract
While navigation and interventional guidance are typically based on image data, the images do not necessarily reflect mechanical tissue properties. Optical coherence elastography (OCE) presents a modality with high sensitivity and very high spatial and temporal resolution. However, OCE has a limited field of view of only 2--5 mm depth. We present a side-facing needle probe to image externally induced shear waves from within soft tissue. A first method of quantitative needle-based OCE is provided. Using a time of flight setup, we establish the shear wave velocity and estimate the tissue elasticity. For comparison, an external scan head is used for imaging. Results for four different phantoms indicate a good agreement between the shear wave velocities estimated from the needle probe at different depths and the scan head. The velocities ranging from 0.9--3.4 m/s agree with the expected values, illustrating that tissue elasticity estimates from within needle probes are feasible.
Original language | English |
---|---|
Title of host publication | Medical Image Computing and Computer-Assisted Intervention − MICCAI 2017 |
Editors | Maxime Descoteaux, Lena Maier-Hein, Alfred Franz, Pierre Jannin, D. Louis Collins, Simon Duchesne |
Number of pages | 9 |
Volume | 10434 |
Place of Publication | Cham |
Publisher | Springer International Publishing |
Publication date | 04.09.2017 |
Pages | 655-663 |
ISBN (Print) | 978-3-319-66184-1 |
ISBN (Electronic) | 978-3-319-66185-8 |
DOIs | |
Publication status | Published - 04.09.2017 |
Event | 20th International Conference on Medical Image Computing and Computer-Assisted Intervention - Quebec, Canada Duration: 11.09.2017 → 13.09.2017 Conference number: 197559 |