Ontology highlight
ABSTRACT:
SUBMITTER: Wang L
PROVIDER: S-EPMC3895050 | biostudies-literature | 2013 Nov
REPOSITORIES: biostudies-literature
Wang Lidai L Xia Jun J Yao Junjie J Maslov Konstantin I KI Wang Lihong V LV
Physical review letters 20131112 20
Blood flow speed is an important functional parameter. Doppler ultrasound flowmetry lacks sufficient sensitivity to slow blood flow (several to tens of millimeters per second) in deep tissue. To address this challenge, we developed ultrasonically encoded photoacoustic flowgraphy combining ultrasonic thermal tagging with photoacoustic imaging. Focused ultrasound generates a confined heat source in acoustically absorptive fluid. Thermal waves propagate with the flow and are directly visualized in ...[more]