Dr Shajan Gunamony

  • Senior Research Fellow - Radio Frequency Engineer (Centre for Cognitive Neuroimaging)

telephone: 01414516882
email: Shajan.Gunamony@glasgow.ac.uk

Research interests


Publications

List all by: Type | Date

Jump to: 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011
Number of items: 25.

2017

Kozlov, M., Bode, J., Bazin, P.-L., Weiskopf, N., Moller, H.E. and Gunamony, S. (2017) Comparison of 7T 16-channel Dual-row Transmit Arrays. In: International Conference on Electromagnetics in Advanced Applications (ICEAA 2017), Verona, Italy, 11-15 Sep 2017, pp. 1264-1267. ISBN 9781509044511 (doi:10.1109/ICEAA.2017.8065502)

2016

Bisdas, S. et al. (2016) MR spectroscopy for in vivo assessment of the oncometabolite 2-hydroxyglutarate and its effects on cellular metabolism in human brain gliomas at 9.4T. Journal of Magnetic Resonance Imaging, 44(4), pp. 823-833. (doi:10.1002/jmri.25221) (PMID:26970248)

Hoffmann, J., Henning, A., Giapitzakis, I. A., Scheffler, K., Shajan, G., Pohmann, R. and Avdievich, N. I. (2016) Safety testing and operational procedures for self-developed radiofrequency coils. NMR in Biomedicine, 29(9), pp. 1131-1144. (doi:10.1002/nbm.3290) (PMID:25851551)

Mirkes, C., Shajan, G., Chadzynski, G., Buckenmaier, K., Bender, B. and Scheffler, K. (2016) 31P CSI of the human brain in healthy subjects and tumor patients at 9.4 T with a three-layered multi-nuclear coil: initial results. Magnetic Resonance Materials in Physics, Biology and Medicine, 29(3), pp. 579-589. (doi:10.1007/s10334-016-0524-9) (PMID:26811174)

Tse, D. H. Y., Wiggins, C. J., Ivanov, D., Brenner, D., Hoffmann, J., Mirkes, C., Shajan, G., Scheffler, K., Uludağ, K. and Poser, B. A. (2016) Volumetric imaging with homogenised excitation and static field at 9.4 T. Magnetic Resonance Materials in Physics, Biology and Medicine, 29(3), pp. 333-345. (doi:10.1007/s10334-016-0543-6) (PMID:26995492) (PMCID:PMC4891373)

Wiesner, H. M., Balla, D. Z., Shajan, G., Scheffler, K., Uğurbil, K., Chen, W., Uludağ, K. and Pohmann, R. (2016) 17O relaxation times in the rat brain at 16.4 tesla. Magnetic Resonance in Medicine, 75(5), pp. 1886-1893. (doi:10.1002/mrm.25814) (PMID:26098931)

Bause, J., Ehses, P., Mirkes, C., Shajan, G., Scheffler, K. and Pohmann, R. (2016) Quantitative and functional pulsed arterial spin labeling in the human brain at 9.4 t. Magnetic Resonance in Medicine, 75(3), pp. 1054-1063. (doi:10.1002/mrm.25671) (PMID:25940006)

Mirkes, C., Shajan, G., Bause, J., Buckenmaier, K., Hoffmann, J. and Scheffler, K. (2016) Triple-quantum-filtered sodium imaging at 9.4 Tesla. Magnetic Resonance in Medicine, 75(3), pp. 1278-1289. (doi:10.1002/mrm.25688) (PMID:25846242)

Shajan, G., Mirkes, C., Buckenmaier, K., Hoffmann, J., Pohmann, R. and Scheffler, K. (2016) Three-layered radio frequency coil arrangement for sodium MRI of the human brain at 9.4 Tesla. Magnetic Resonance in Medicine, 75(2), pp. 906-916. (doi:10.1002/mrm.25666)

Hoffmann, J., Mirkes, C., Shajan, G., Scheffler, K. and Pohmann, R. (2016) Combination of a multimode antenna and TIAMO for traveling-wave imaging at 9.4 Tesla. Magnetic Resonance in Medicine, 75(1), pp. 452-462. (doi:10.1002/mrm.25614) (PMID:25732895)

2015

Ehses, P., Bause, J., Shajan, G. and Scheffler, K. (2015) Efficient generation of T2*-weighted contrast by interslice echo-shifting for human functional and anatomical imaging at 9.4 Tesla. Magnetic Resonance in Medicine, 74(6), pp. 1698-1704. (doi:10.1002/mrm.25570) (PMID:25597997)

Chadzynski, G. L., Pohmann, R., Shajan, G., Kolb, R., Bisdas, S., Klose, U. and Scheffler, K. (2015) In vivo proton magnetic resonance spectroscopic imaging of the healthy human brain at 9.4 T: initial experience. Magnetic Resonance Materials in Physics, Biology and Medicine, 28(3), pp. 239-249. (doi:10.1007/s10334-014-0460-5) (PMID:25248946)

Mirkes, C. C., Hoffmann, J., Shajan, G., Pohmann, R. and Scheffler, K. (2015) High-resolution quantitative sodium imaging at 9.4 tesla. Magnetic Resonance in Medicine, 73(1), pp. 342-351. (doi:10.1002/mrm.25096) (PMID:24435910)

2014

Hoffmann, J., Shajan, G., Scheffler, K. and Pohmann, R. (2014) Numerical and experimental evaluation of RF shimming in the human brain at 9.4 T using a dual-row transmit array. Magnetic Resonance Materials in Physics, Biology and Medicine, 27(5), pp. 373-386. (doi:10.1007/s10334-013-0419-y) (PMID:24276542)

Budde, J., Shajan, G., Scheffler, K. and Pohmann, R. (2014) Ultra-high resolution imaging of the human brain using acquisition-weighted imaging at 9.4 T. NeuroImage, 86, pp. 592-598. (doi:10.1016/j.neuroimage.2013.08.013) (PMID:23954486)

Shajan, G., Kozlov, M., Hoffmann, J., Turner, R., Scheffler, K. and Pohmann, R. (2014) A 16-channel dual-row transmit array in combination with a 31-element receive array for human brain imaging at 9.4 T. Magnetic Resonance in Medicine, 71(2), pp. 870-879. (doi:10.1002/mrm.24726) (PMID:23483645)

Budde, J., Shajan, G., Zaitsev, M., Scheffler, K. and Pohmann, R. (2014) Functional MRI in human subjects with gradient-echo and spin-echo EPI at 9.4 T. Magnetic Resonance in Medicine, 71(1), pp. 209-218. (doi:10.1002/mrm.24656) (PMID:23447097)

2013

Balla, D. Z. et al. (2013) In vivo visualization of single native pancreatic islets in the mouse. Contrast Media and Molecular Imaging, 8(6), pp. 495-504. (doi:10.1002/cmmi.1580) (PMID:24375905)

Hoffmann, J., Shajan, G., Budde, J., Scheffler, K. and Pohmann, R. (2013) Human brain imaging at 9.4 T using a tunable patch antenna for transmission. Magnetic Resonance in Medicine, 69(5), pp. 1494-1500. (doi:10.1002/mrm.24367) (PMID:22706783)

Pohmann, R. et al. (2013) Imaging and spectroscopy at 9.4 Tesla: first results on patients and volunteers. MAGNETOM Flash, 52(2), pp. 58-67.

2012

Shajan, G., Hoffmann, J., Balla, D. Z., Deelchand, D. K., Scheffler, K. and Pohmann, R. (2012) Rat brain MRI at 16.4T using a capacitively tunable patch antenna in combination with a receive array. NMR in Biomedicine, 25(10), pp. 1170-1176. (doi:10.1002/nbm.2786) (PMID:22344898)

2011

Pohmann, R., Shajan, G. and Balla, D. Z. (2011) Contrast at high field: Relaxation times, magnetization transfer and phase in the rat brain at 16.4 T. Magnetic Resonance in Medicine, 66(6), pp. 1572-1581. (doi:10.1002/mrm.22949) (PMID:21671265)

Shajan, G., Hoffmann, J., Budde, J., Adriany, G., Ugurbil, K. and Pohmann, R. (2011) Design and evaluation of an RF front-end for 9.4 T human MRI. Magnetic Resonance in Medicine, 66(2), pp. 594-602. (doi:10.1002/mrm.22808) (PMID:21381102)

Budde, J., Shajan, G., Hoffmann, J., Uğurbil, K. and Pohmann, R. (2011) Human imaging at 9.4 T using T2*-, phase-, and susceptibility-weighted contrast. Magnetic Resonance in Medicine, 65(2), pp. 544-550. (doi:10.1002/mrm.22632) (PMID:20872858)

Hong, S.-T., Balla, D. Z., Shajan, G., Choi, C., Uğurbil, K. and Pohmann, R. (2011) Enhanced neurochemical profile of the rat brain using in vivo 1H NMR spectroscopy at 16.4 T. Magnetic Resonance in Medicine, 65(1), pp. 28-34. (doi:10.1002/mrm.22609) (PMID:20928884)

This list was generated on Wed Dec 12 23:00:06 2018 GMT.
Number of items: 25.

Articles

Bisdas, S. et al. (2016) MR spectroscopy for in vivo assessment of the oncometabolite 2-hydroxyglutarate and its effects on cellular metabolism in human brain gliomas at 9.4T. Journal of Magnetic Resonance Imaging, 44(4), pp. 823-833. (doi:10.1002/jmri.25221) (PMID:26970248)

Hoffmann, J., Henning, A., Giapitzakis, I. A., Scheffler, K., Shajan, G., Pohmann, R. and Avdievich, N. I. (2016) Safety testing and operational procedures for self-developed radiofrequency coils. NMR in Biomedicine, 29(9), pp. 1131-1144. (doi:10.1002/nbm.3290) (PMID:25851551)

Mirkes, C., Shajan, G., Chadzynski, G., Buckenmaier, K., Bender, B. and Scheffler, K. (2016) 31P CSI of the human brain in healthy subjects and tumor patients at 9.4 T with a three-layered multi-nuclear coil: initial results. Magnetic Resonance Materials in Physics, Biology and Medicine, 29(3), pp. 579-589. (doi:10.1007/s10334-016-0524-9) (PMID:26811174)

Tse, D. H. Y., Wiggins, C. J., Ivanov, D., Brenner, D., Hoffmann, J., Mirkes, C., Shajan, G., Scheffler, K., Uludağ, K. and Poser, B. A. (2016) Volumetric imaging with homogenised excitation and static field at 9.4 T. Magnetic Resonance Materials in Physics, Biology and Medicine, 29(3), pp. 333-345. (doi:10.1007/s10334-016-0543-6) (PMID:26995492) (PMCID:PMC4891373)

Wiesner, H. M., Balla, D. Z., Shajan, G., Scheffler, K., Uğurbil, K., Chen, W., Uludağ, K. and Pohmann, R. (2016) 17O relaxation times in the rat brain at 16.4 tesla. Magnetic Resonance in Medicine, 75(5), pp. 1886-1893. (doi:10.1002/mrm.25814) (PMID:26098931)

Bause, J., Ehses, P., Mirkes, C., Shajan, G., Scheffler, K. and Pohmann, R. (2016) Quantitative and functional pulsed arterial spin labeling in the human brain at 9.4 t. Magnetic Resonance in Medicine, 75(3), pp. 1054-1063. (doi:10.1002/mrm.25671) (PMID:25940006)

Mirkes, C., Shajan, G., Bause, J., Buckenmaier, K., Hoffmann, J. and Scheffler, K. (2016) Triple-quantum-filtered sodium imaging at 9.4 Tesla. Magnetic Resonance in Medicine, 75(3), pp. 1278-1289. (doi:10.1002/mrm.25688) (PMID:25846242)

Shajan, G., Mirkes, C., Buckenmaier, K., Hoffmann, J., Pohmann, R. and Scheffler, K. (2016) Three-layered radio frequency coil arrangement for sodium MRI of the human brain at 9.4 Tesla. Magnetic Resonance in Medicine, 75(2), pp. 906-916. (doi:10.1002/mrm.25666)

Hoffmann, J., Mirkes, C., Shajan, G., Scheffler, K. and Pohmann, R. (2016) Combination of a multimode antenna and TIAMO for traveling-wave imaging at 9.4 Tesla. Magnetic Resonance in Medicine, 75(1), pp. 452-462. (doi:10.1002/mrm.25614) (PMID:25732895)

Ehses, P., Bause, J., Shajan, G. and Scheffler, K. (2015) Efficient generation of T2*-weighted contrast by interslice echo-shifting for human functional and anatomical imaging at 9.4 Tesla. Magnetic Resonance in Medicine, 74(6), pp. 1698-1704. (doi:10.1002/mrm.25570) (PMID:25597997)

Chadzynski, G. L., Pohmann, R., Shajan, G., Kolb, R., Bisdas, S., Klose, U. and Scheffler, K. (2015) In vivo proton magnetic resonance spectroscopic imaging of the healthy human brain at 9.4 T: initial experience. Magnetic Resonance Materials in Physics, Biology and Medicine, 28(3), pp. 239-249. (doi:10.1007/s10334-014-0460-5) (PMID:25248946)

Mirkes, C. C., Hoffmann, J., Shajan, G., Pohmann, R. and Scheffler, K. (2015) High-resolution quantitative sodium imaging at 9.4 tesla. Magnetic Resonance in Medicine, 73(1), pp. 342-351. (doi:10.1002/mrm.25096) (PMID:24435910)

Hoffmann, J., Shajan, G., Scheffler, K. and Pohmann, R. (2014) Numerical and experimental evaluation of RF shimming in the human brain at 9.4 T using a dual-row transmit array. Magnetic Resonance Materials in Physics, Biology and Medicine, 27(5), pp. 373-386. (doi:10.1007/s10334-013-0419-y) (PMID:24276542)

Budde, J., Shajan, G., Scheffler, K. and Pohmann, R. (2014) Ultra-high resolution imaging of the human brain using acquisition-weighted imaging at 9.4 T. NeuroImage, 86, pp. 592-598. (doi:10.1016/j.neuroimage.2013.08.013) (PMID:23954486)

Shajan, G., Kozlov, M., Hoffmann, J., Turner, R., Scheffler, K. and Pohmann, R. (2014) A 16-channel dual-row transmit array in combination with a 31-element receive array for human brain imaging at 9.4 T. Magnetic Resonance in Medicine, 71(2), pp. 870-879. (doi:10.1002/mrm.24726) (PMID:23483645)

Budde, J., Shajan, G., Zaitsev, M., Scheffler, K. and Pohmann, R. (2014) Functional MRI in human subjects with gradient-echo and spin-echo EPI at 9.4 T. Magnetic Resonance in Medicine, 71(1), pp. 209-218. (doi:10.1002/mrm.24656) (PMID:23447097)

Balla, D. Z. et al. (2013) In vivo visualization of single native pancreatic islets in the mouse. Contrast Media and Molecular Imaging, 8(6), pp. 495-504. (doi:10.1002/cmmi.1580) (PMID:24375905)

Hoffmann, J., Shajan, G., Budde, J., Scheffler, K. and Pohmann, R. (2013) Human brain imaging at 9.4 T using a tunable patch antenna for transmission. Magnetic Resonance in Medicine, 69(5), pp. 1494-1500. (doi:10.1002/mrm.24367) (PMID:22706783)

Pohmann, R. et al. (2013) Imaging and spectroscopy at 9.4 Tesla: first results on patients and volunteers. MAGNETOM Flash, 52(2), pp. 58-67.

Shajan, G., Hoffmann, J., Balla, D. Z., Deelchand, D. K., Scheffler, K. and Pohmann, R. (2012) Rat brain MRI at 16.4T using a capacitively tunable patch antenna in combination with a receive array. NMR in Biomedicine, 25(10), pp. 1170-1176. (doi:10.1002/nbm.2786) (PMID:22344898)

Pohmann, R., Shajan, G. and Balla, D. Z. (2011) Contrast at high field: Relaxation times, magnetization transfer and phase in the rat brain at 16.4 T. Magnetic Resonance in Medicine, 66(6), pp. 1572-1581. (doi:10.1002/mrm.22949) (PMID:21671265)

Shajan, G., Hoffmann, J., Budde, J., Adriany, G., Ugurbil, K. and Pohmann, R. (2011) Design and evaluation of an RF front-end for 9.4 T human MRI. Magnetic Resonance in Medicine, 66(2), pp. 594-602. (doi:10.1002/mrm.22808) (PMID:21381102)

Budde, J., Shajan, G., Hoffmann, J., Uğurbil, K. and Pohmann, R. (2011) Human imaging at 9.4 T using T2*-, phase-, and susceptibility-weighted contrast. Magnetic Resonance in Medicine, 65(2), pp. 544-550. (doi:10.1002/mrm.22632) (PMID:20872858)

Hong, S.-T., Balla, D. Z., Shajan, G., Choi, C., Uğurbil, K. and Pohmann, R. (2011) Enhanced neurochemical profile of the rat brain using in vivo 1H NMR spectroscopy at 16.4 T. Magnetic Resonance in Medicine, 65(1), pp. 28-34. (doi:10.1002/mrm.22609) (PMID:20928884)

Conference Proceedings

Kozlov, M., Bode, J., Bazin, P.-L., Weiskopf, N., Moller, H.E. and Gunamony, S. (2017) Comparison of 7T 16-channel Dual-row Transmit Arrays. In: International Conference on Electromagnetics in Advanced Applications (ICEAA 2017), Verona, Italy, 11-15 Sep 2017, pp. 1264-1267. ISBN 9781509044511 (doi:10.1109/ICEAA.2017.8065502)

This list was generated on Wed Dec 12 23:00:06 2018 GMT.

Grants

Grants and Awards listed are those received whilst working with the University of Glasgow.

  • Hybrid 1H/19F Magnetic Resonance Imaging at 7T
    Biotechnology and Biological Sciences Research Council
    2017 - 2018
     

Supervision

Research Assistant