caa a22 4500 475791274 CHVBK 20180406123711.0 cr unu---uuuuu 170329e20000201xx s 000 0 eng 10.1023/A:1006376326755 doi (NATIONALLICENCE)springer-10.1023/A:1006376326755 An iso-integral mapping technique using magnetocardiogram, and its possible use for diagnosis of ischemic heart disease [Elektronische Daten] [Keiji Tsukada, Tsuyoshi Miyashita, Akihiko Kandori, Toshio Mitsui, Yasushi Terada, Masato Sato, Junko Shiono, Hitoshi Horigome, Satsuki Yamada, Iwao Yamaguchi] We have developed an iso-integral mapping technique that uses magneto-cardiogram (MCG) data to obtain a map as projected total current image on the torso from the heart. We have also investigated the applicability of iso-integral mapping to the diagnosis of ischemic heart disease. We simulated and measured the characteristics of two types of iso-integral maps: one using tangential (B xy ) components, and one using the normal component (B z ). Each vector component was measured by two types of superconducting quantum interference device (SQUID) system to determine the tangential and normal components. The tangential component of the magnetic field appeared to be equivalent to the current image in the myocardium projected on the observing plane, and we were able to obtain a projected total current image by integration of the tangential components during the depolarization and repolarization processes. And we found that the iso-integral maps of normal hearts showed similar pattern in both processes; however, those of ischemic hearts showed different patterns. Kluwer Academic Publishers, 2000 ischemic heart disease nationallicence iso-integral mapping nationallicence multi-channel SQUID system nationallicence tangential MCG nationallicence ventricular depolarization nationallicence ventricular repolarization nationallicence Tsukada Keiji Central Research Laboratory, Hitachi Ltd., 1-280 Higashikoigakubo, Kokubunji, 185, Tokyo, Japan aut Miyashita Tsuyoshi Central Research Laboratory, Hitachi Ltd., 1-280 Higashikoigakubo, Kokubunji, 185, Tokyo, Japan aut Kandori Akihiko Central Research Laboratory, Hitachi Ltd., 1-280 Higashikoigakubo, Kokubunji, 185, Tokyo, Japan aut Mitsui Toshio Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut Terada Yasushi Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut Sato Masato Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut Shiono Junko Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut Horigome Hitoshi Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut Yamada Satsuki Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut Yamaguchi Iwao Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut The International Journal of Cardiac Imaging Kluwer Academic Publishers 16/1(2000-02-01), 55-66 0167-9899 16:1<55 2000 16 10554 https://doi.org/10.1023/A:1006376326755 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1006376326755 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tsukada Keiji Central Research Laboratory, Hitachi Ltd., 1-280 Higashikoigakubo, Kokubunji, 185, Tokyo, Japan aut NATIONALLICENCE 700 1- Miyashita Tsuyoshi Central Research Laboratory, Hitachi Ltd., 1-280 Higashikoigakubo, Kokubunji, 185, Tokyo, Japan aut NATIONALLICENCE 700 1- Kandori Akihiko Central Research Laboratory, Hitachi Ltd., 1-280 Higashikoigakubo, Kokubunji, 185, Tokyo, Japan aut NATIONALLICENCE 700 1- Mitsui Toshio Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 700 1- Terada Yasushi Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 700 1- Sato Masato Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 700 1- Shiono Junko Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 700 1- Horigome Hitoshi Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 700 1- Yamada Satsuki Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 700 1- Yamaguchi Iwao Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305, Ibaraki, Japan aut NATIONALLICENCE 773 0- The International Journal of Cardiac Imaging Kluwer Academic Publishers 16/1(2000-02-01), 55-66 0167-9899 16:1<55 2000 16 10554 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer