TY - GEN
T1 - Noninvasive visualization of three-dimensional atrial electrical excitation using anterior and posterior magnetocardiogram
AU - Ogata, K.
AU - Kandori, A.
AU - Miyashita, T.
AU - Tsukada, K.
AU - Nakatani, S.
AU - Shimizu, W.
AU - Kanzaki, H.
AU - Miyatake, K.
AU - Yamada, S.
AU - Watanabe, S.
AU - Yamaguchi, I.
PY - 2005
Y1 - 2005
N2 - The aim of our work is to visualize three-dimensional (3-D) images of atrial excitation. We obtained these images by projecting the anterior and posterior current-arrow map (CAM), derived from a magnetocardiogram (MCG), onto a 3-D standard heart model. We generated the projected CAM (PCAM) of early and late atrial depolarization phases for fourteen healthy subjects. During early and late atrial excitation, the high-current areas of all subjects were in the right atrium of the anterior surface, and the left atrium of the posterior surface. The averaged ratio of the maximal current value of the early p-wave to the maximal current value of the late p-wave for all subjects was 0.9 ± 0.2. Furthermore, the averaged maximal current directions of the early and late p-wave were 78 ± 15 and 165 ± 17 degrees, respectively. Thus, we found that the PCAM could provide separated images of the left and right atrial excitations.
AB - The aim of our work is to visualize three-dimensional (3-D) images of atrial excitation. We obtained these images by projecting the anterior and posterior current-arrow map (CAM), derived from a magnetocardiogram (MCG), onto a 3-D standard heart model. We generated the projected CAM (PCAM) of early and late atrial depolarization phases for fourteen healthy subjects. During early and late atrial excitation, the high-current areas of all subjects were in the right atrium of the anterior surface, and the left atrium of the posterior surface. The averaged ratio of the maximal current value of the early p-wave to the maximal current value of the late p-wave for all subjects was 0.9 ± 0.2. Furthermore, the averaged maximal current directions of the early and late p-wave were 78 ± 15 and 165 ± 17 degrees, respectively. Thus, we found that the PCAM could provide separated images of the left and right atrial excitations.
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U2 - 10.1109/CIC.2005.1588154
DO - 10.1109/CIC.2005.1588154
M3 - Conference contribution
AN - SCOPUS:33847115808
SN - 0780393376
SN - 9780780393370
T3 - Computers in Cardiology
SP - 527
EP - 530
BT - Computers in Cardiology, 2005
T2 - Computers in Cardiology, 2005
Y2 - 25 September 2005 through 28 September 2005
ER -