RT Journal Article
T1 Experimental Evidence of Generation and Reception by a Transluminal Axisymmetric Shear Wave Elastography Prototype.
A1 Gomez, Antonio
A1 Hurtado, Manuel
A1 Callejas, Antonio
A1 Torres, Jorge
A1 Saffari, Nader
A1 Rus, Guillermo
K1 phantoms
K1 prostate
K1 shear wave elastography imaging
K1 transluminal elastography
AB Experimental evidence on testing a non-ultrasonic-based probe for a new approach in transluminal elastography was presented. The proposed modality generated shear waves by inducing oscillatory rotation on the lumen wall. Detection of the propagated waves was achieved at a set of receivers in mechanical contact with the lumen wall. The excitation element of the probe was an electromagnetic rotational actuator whilst the sensing element was comprised by a uniform anglewise arrangement of four piezoelectric receivers. The prototype was tested in two soft-tissue-mimicking phantoms that contained lumenlike conduits and stiffer inclusions. The shear wave speed of the different components of the phantoms was characterized using shear wave elastography. These values were used to estimate the time-of-flight of the expected reflections. Ultrafast ultrasound imaging, based on Loupas' algorithm, was used to estimate the displacement field in transversal planes to the lumenlike conduit and to compare against the readouts from the transluminal transmission-reception tests. Experimental observations between ultrafast imaging and the transluminal probe were in good agreement, and reflections due to the stiffer inclusions were detected by the transluminal probe. The obtained experimental evidence provided proof-of-concept for the transluminal elastography probe and encouraged further exploration of clinical applications.
PB MDPI AG
SN 2075-4418
YR 2021
FD 2021-03-30
LK http://hdl.handle.net/10668/17669
UL http://hdl.handle.net/10668/17669
LA en
NO Gomez A, Hurtado M, Callejas A, Torres J, Saffari N, Rus G. Experimental Evidence of Generation and Reception by a Transluminal Axisymmetric Shear Wave Elastography Prototype. Diagnostics (Basel). 2021 Apr 2;11(4):645.
DS RISalud
RD Apr 10, 2025