Publisher DOI: 10.1007/978-3-319-66185-8_74
Title: An approach for needle based optical coherence elastography measurements
Language: English
Authors: Latus, Sarah 
Otte, Christoph 
Schlüter, Matthias 
Rehra, Josua 
Bizon, Kevin 
Schulz-Hildebrandt, Hinnerk 
Saathoff, Thore 
Hüttmann, Gereon 
Schlaefer, Alexander 
Keywords: Interventional imaging;Optical coherence elastography
Issue Date: 4-Sep-2017
Publisher: Springer
Source: Lecture Notes in Computer Science (10434): 655-663 (2017)
Volume number: 10434
Journal or Series Name: Lecture notes in computer science 
Abstract (english): 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.
Conference: 20th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2017 
ISBN: 978-3-319-66185-8
ISSN: 1611-3349
Institute: Medizintechnische Systeme E-1 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
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