[13p-N202-1~7] 3.4 Biomedical optics

[13p-N202-2] Magnetocardiography using a solid-state quantum sensor

〇Keigo Arai^1,2, Akihiro Kuwahata⁴, Daisuke Nishitani¹, Ikuya Fujisaki¹, Ryoma Matsuki¹, Yuki Nishio¹, Zonghao Xin³, Xinyu Cao³, Yuji Hatano¹, Shinobu Onoda⁵, Chikara Shinei⁶, Masashi Miyakawa⁶, Takashi Taniguchi⁶, Masatoshi Yamazaki⁷, Tokuyuki Teraji⁶, Takeshi Ohshima⁵, Mutsuko Hatano^1,5, Masaki Sekino³, Takayuki Iwasaki¹ (1.Tokyo Tech., 2.JST PRESTO, 3.The Univ. of Tokyo, 4.Tohoku Univ., 5.QST, 6.NIMS, 7.Nagano Hospital)

Keywords:NV center, Magnetic imaging, magnetometer

A key challenge in cardiology is the non invasive imaging of electric current propagation occurring in the cardiovascular system at an intra-cardiac scale. The conventional electrical approach suffers from deformation of the signal due to inhomogeneous electrical conductiviey of the body, while a magnetic approach allows directly mapping the current dynamics. In this talk, I will discuss a method for millimetre scale magnetocardiography of living mammalian animals using a solid state quantum sensor based on nitrogen vacancy centres in diamond.