TY - JOUR
T1 - Basic study of intrinsic elastography
T2 - Relationship between tissue stiffness and propagation velocity of deformation induced by pulsatile flow
AU - Nagaoka, Ryo
AU - Iwasaki, Ryosuke
AU - Arakawa, Mototaka
AU - Kobayashi, Kazuto
AU - Yoshizawa, Shin
AU - Umemura, Shin Ichiro
AU - Saijo, Yoshifumi
N1 - Publisher Copyright:
© 2015 The Japan Society of Applied Physics.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - We proposed an estimation method for a tissue stiffness from deformations induced by arterial pulsation, and named this proposed method intrinsic elastography (IE). In IE, assuming that the velocity of the deformation propagation in tissues is closely related to the stiffness, the propagation velocity (PV) was estimated by spatial compound ultrasound imaging with a high temporal resolution of 1ms. However, the relationship between tissue stiffness and PV has not been revealed yet. In this study, the PV of the deformation induced by the pulsatile pump was measured by IE in three different poly(vinyl alcohol) (PVA) phantoms of different stiffnesses. The measured PV was compared with the shear wave velocity (SWV) measured by shear wave imaging (SWI). The measured PV has trends similar to the measured SWV. These results obtained by IE in a healthy male show the possibility that the mechanical properties of living tissues could be evaluated by IE.
AB - We proposed an estimation method for a tissue stiffness from deformations induced by arterial pulsation, and named this proposed method intrinsic elastography (IE). In IE, assuming that the velocity of the deformation propagation in tissues is closely related to the stiffness, the propagation velocity (PV) was estimated by spatial compound ultrasound imaging with a high temporal resolution of 1ms. However, the relationship between tissue stiffness and PV has not been revealed yet. In this study, the PV of the deformation induced by the pulsatile pump was measured by IE in three different poly(vinyl alcohol) (PVA) phantoms of different stiffnesses. The measured PV was compared with the shear wave velocity (SWV) measured by shear wave imaging (SWI). The measured PV has trends similar to the measured SWV. These results obtained by IE in a healthy male show the possibility that the mechanical properties of living tissues could be evaluated by IE.
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U2 - 10.7567/JJAP.54.07HF08
DO - 10.7567/JJAP.54.07HF08
M3 - Article
AN - SCOPUS:84936759920
SN - 0021-4922
VL - 54
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 7
M1 - 07HF08
ER -