TY - JOUR
T1 - Three dimensional ultrasonic tissue elasticity imaging
AU - Shiina, T.
AU - Nitta, N.
AU - Yamakawa, M.
PY - 2000
Y1 - 2000
N2 - Imaging of tissue elastic properties is expected to be a new modality by which to assess tissue diseases such as cancer. However, some reconstruction techniques are based on 1-D strain data and require the imposition of many boundary conditions. In order to reconstruct under less restricted conditions, it is necessary to fully evaluate the mechanical equilibrium equations using all components of the, displacement vector induced by tissue deformation. In this work, we employed the 3-D displacement vector measurement method utilizing the 2-D array probe. In addition, we developed the reconstruction method of tissue elastic modulus distribution using the measured 3-D displacement vector. The feasibility of the proposed methods were investigated by numerical simulation using the ultrasonic echo signals. Finally basic experimental system was applied to imaging the distribution of elastic properties of tumor phantom. The results indicate the validity of the reconstruction method in evaluating the 3-D tissue elastic distribution.
AB - Imaging of tissue elastic properties is expected to be a new modality by which to assess tissue diseases such as cancer. However, some reconstruction techniques are based on 1-D strain data and require the imposition of many boundary conditions. In order to reconstruct under less restricted conditions, it is necessary to fully evaluate the mechanical equilibrium equations using all components of the, displacement vector induced by tissue deformation. In this work, we employed the 3-D displacement vector measurement method utilizing the 2-D array probe. In addition, we developed the reconstruction method of tissue elastic modulus distribution using the measured 3-D displacement vector. The feasibility of the proposed methods were investigated by numerical simulation using the ultrasonic echo signals. Finally basic experimental system was applied to imaging the distribution of elastic properties of tumor phantom. The results indicate the validity of the reconstruction method in evaluating the 3-D tissue elastic distribution.
UR - http://www.scopus.com/inward/record.url?scp=0033715688&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033715688&partnerID=8YFLogxK
U2 - 10.1016/S0301-5629(00)80014-9
DO - 10.1016/S0301-5629(00)80014-9
M3 - Conference article
AN - SCOPUS:0033715688
VL - 26
SP - A240
JO - Ultrasound in Medicine and Biology
JF - Ultrasound in Medicine and Biology
SN - 0301-5629
IS - SUPPL. 2
T2 - The 9th Congress of World Federation for Ultrasound in Medicine and Biology
Y2 - 6 May 2000 through 10 May 2000
ER -