Recent publications



R. Nakaoka, D. A. Komarov, S. Matsumoto, and H. Hirata. Impact of the characteristic impedance of coaxial lines on the sensitivity of a 750-MHz electronically tunable EPR resonator. Applied Magnetic Resonance (2018). DOI: 10.1007/s00723-018-1001-6, published online 31 March 2018.

K. Matsumoto, S. Kishimoto, N. Devasahayam, G. V. R. Chandramouli, Y. Ogawa, S. Matsumoto, M. C. Krishna, S. Subramanian. EPR-based oximetric imaging: a combination of single point-based spatial encoding and T1 weighting. Magnetic Resonce in Medicine (2018) DOI: 10.1002/mrm.27182, published online 26 Mar 2018.

S. Kishimoto, K. Matsumoto, K. Saito, A. Enomoto, S. Matsumoto, J. B. Mitchell, N. Devasahayam, M. C. Krishna. Pulsed Electron Paramagnetic Resonance Imaging: Applications in the Studies of Tumor Physiology. Antioxidants and Redox Signaling (2018). DOI: 10.1089/ars.2017.7391, published online 9 January 2018.


H. Yasui, T. Kawai, S. Matsumoto, K. Saito, N. Devasahayam , J. B. Mitchell, K. Camphausen, O. Inanami, M. C. Krishna.Quantitative imaging of pO2 in orthotopic murine gliomas: hypoxia correlates with resistance to radiation. Free Radical Research, Vol. 51, No. 9-10, pp. 861-871 (2017). DOI: 10.1080/10715762.2017.1388506, published online 17 October 2017.

H. Sato-Akaba, M. C. Emoto, H. Hirata, and H. G. Fujii, Design and testing of a 750 MHz CW-EPR digital console for small animal imaging, Journal of Magnetic Resonance, Vol. 284, pp. 48-58 (2017). DOI: 10.1016/j.jmr.2017.09.008, published online 20 September 2017.

Y. Takakusagi, S. Kishimoto, S. Naz, S. Matsumoto, K. Saito, C. P. Hart, J. B. Mitchell, M. C. Krishna. Radiotherapy Synergizes with the Hypoxia-Activated Prodrug Evofosfamide: In Vitro and In Vivo Studies. Antioxidants and Redox Signaling, Vol. 28, No. 2, pp. 131-140 (2018), DOI: 10.1089/ars.2017.7106, published online 8 September 2018.

T. Amida, R. Nakaoka, D. A. Komarov, K. Yamamoto, O. Inanami, S. Matsumoto, and H. Hirata, A 750-MHz electronically tunable resonator using microstrip line couplers for electron paramagnetic resonance imaging of a mouse tumor-bearing leg, IEEE Transactions on Biomedical Engineering, Vol. 65, No. 5, pp. 1124-1132 (2018). DOI: 10.1109/TBME.2017.2743232, published online 23 August 2017.

M. Umakoshi, I. Yamaguchi, H. Hirata, N. Kunugita, B. B. Williams, H. M. Swartz, and M. Miyake, In vivo electron paramagnetic resonance tooth dosimetry: Dependence of radiation-induced signal amplitude on the enamel thickness and surface area of ex vivo human teeth,Health Physics, Vol. 113, No. 4, pp. 262-270 (2017). DOI: 10.1097/HP.0000000000000698, published online 7 August 2017.

D. A. Komarov and H. Hirata, Fast backprojection-based reconstruction of spectral-spatial EPR images from projections with the constant sweep of a magnetic field, Journal of Magnetic Resonance, Vol. 281, pp. 44-50 (2017). DOI: 10.1016/j.jmr.2017.05.005, published online 17 May 2017.

H. Kubota, D. A. Komarov, H. Yasui, S. Matsumoto, O. Inanami, I. A. Kirilyuk, V. V. Khramtsov, and H. Hirata, Feasibility of in vivo three-dimensional T2* mapping using dicarboxy-PROXYL and CW-EPR-based single-point imaging, Magnetic Resonance Materials in Physics, Biology and Medicine, Vol. 30, No. 3, pp. 291-298 (2017). DOI: 10.1007/s10334-016-0606-8, published online 6 January 2017.


X. Wang, M. Emoto, Y. Miyake, K. Itto, S. Xu, H. Fujii, H. Hirata, and H. Arimoto, Novel blood-brain-barrier-permeable spin probe for in vivo electron paramagnetic resonance imaging, Bioorganic & Medicinal Chemistry Letters, Vol. 26, No. 20, pp. 4947-4949 (2016), DOI: 10.1016/j.bmcl.2016.09.010, published online 6 September 2016.

M. Miyake, Y. Nakai, I. Yamaguchi, H. Hirata, N. Kunugita, B. B. Williams, and H. M. Swartz, In-vivo radiation doeimstry using portable L band EPR: On-site measurement of volunteers in Fukushima prefecture, Japan, Radiation Protection Dosimetry, Vol. 172, No. 1-3, pp. 248-253 (2016), DOI:10.1093/rpd/ncw214, published online 13 August 2016.


A. Enomoto, K. Saito, S. Subramanian, M. C. Krishna, H. Hirata, and N. Devasahayam, Passive decoupling due to low Q-factors of four-channel coils in 300-MHz pulsed EPR imaging, Applied Magnetic Resonance, Vol. 46, No. 6, pp. 671-683 (2015), DOI: 10.1007/s00723-015-0671-6, published online 26 March 2015.


W. Takahashi, Y. Miyake, and H. Hirata, Artifact suppression in electron paramagnetic resonance imaging of 14N- and 15N-labeled nitroxyl radicals with asymmetric absorption spectra, Journal of Magnetic Resonance, Vol. 247, pp. 31-37 (2014), DOI: 10.1016/j.jmr.2014.08.001, published online 20 August 2014.

W. Takahashi, A. A. Bobko, I. Dhimitruka, H. Hirata, J. L. Zweier, A. Samouilov, and V. V. Khramtsov, Proton-electron double-resonance imaging of pH using phosphonated trityl probe, Applied Magnetic Resonance, Vol. 45, No. 9, pp. 817-826 (2014), published online 17 August 2014.