TY - GEN
T1 - An innovative approach to evaluate a cardiac function based on surface measurement
AU - Uematsu, M.
AU - Shiraishi, Y.
AU - Sekine, K.
AU - Yambe, T.
AU - Saijo, Y.
AU - Park, Y.
AU - Ando, H.
AU - Matsumoto, T.
AU - Takeda, S.
AU - Iwasaki, K.
AU - Umezu, Mitsuo
PY - 2005
Y1 - 2005
N2 - Major function of the heart is to pump blood flow up to all tissues or organs in the body, and it is generally recognized that cardiac function under various diseased conditions are mainly represented by a relationship between blood flow and pressure inside of the heart. In this report, an original proposal of evaluation method on cardiac function is introduced through a simultaneous measurement of various points of cardiac muscular surface. An optical three-dimensional location sensor was employed to measure a displacement change of anatomically specific points on heart surface. Then, changes in strain in each regional surface area were quantitatively obtained. This result indicated similar tendency obtained from echocardiogram. It was also indicated that there was a difference in displacements and phrases between control and arrhythmia. Moreover, strain change in regional area was coincident with a contraction of natural heart. It was found that an attempt to superimpose the data of strain change onto the video images of natural heart was extremely helpful to understand a cardiac function visually.
AB - Major function of the heart is to pump blood flow up to all tissues or organs in the body, and it is generally recognized that cardiac function under various diseased conditions are mainly represented by a relationship between blood flow and pressure inside of the heart. In this report, an original proposal of evaluation method on cardiac function is introduced through a simultaneous measurement of various points of cardiac muscular surface. An optical three-dimensional location sensor was employed to measure a displacement change of anatomically specific points on heart surface. Then, changes in strain in each regional surface area were quantitatively obtained. This result indicated similar tendency obtained from echocardiogram. It was also indicated that there was a difference in displacements and phrases between control and arrhythmia. Moreover, strain change in regional area was coincident with a contraction of natural heart. It was found that an attempt to superimpose the data of strain change onto the video images of natural heart was extremely helpful to understand a cardiac function visually.
KW - Heart function
KW - Regional strain
KW - Surface movement
KW - Three-dimensional location sensor
UR - http://www.scopus.com/inward/record.url?scp=33846907858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846907858&partnerID=8YFLogxK
U2 - 10.1109/iembs.2005.1616281
DO - 10.1109/iembs.2005.1616281
M3 - Conference contribution
AN - SCOPUS:33846907858
SN - 0780387406
SN - 9780780387409
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
SP - 7640
EP - 7643
BT - Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
Y2 - 1 September 2005 through 4 September 2005
ER -