Augmentation of the In Vivo Elastic Properties Measurement System to Include Bulk Properties
Abstract
The goal of this project is to develop and demonstrate a system for non-invasive in vivo measurement of the complex elastic moduli (stiffnesses and loss factors) of cetacean head tissues. This system is ultimately intended to provide a portable diagnostic capability for use in stranded animal assessments. Under a separate award, the investigators have been developing an ultrasound-based system for noninvasive in vivo determination of the complex shear elastic moduli (stiffness and loss) of cetacean head soft tissues. The objective of the present work is to augment the capabilities of the system (referred to as CFE , for Convergent Field Elastography), to include determine bulk tissue speed and attenuation. Such data would provide previously unavailable in vivo information useful for applications such as cetacean sound exposure models and blubber thickness assessments, which have employed ex vivo data. Particularly critical in the bulk properties assessment is the attenuation as a function of frequency, and the extent to which it changes post mortem.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2013
- Accession Number
- ADA598773
Entities
People
- Michael D. Gray
- Peter H. Rogers
Organizations
- Georgia Tech