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Armen Kocharian, PhD

Associate Professor of Radiology, Academic Institute
Associate Clinical Member, Research Institute
Houston Methodist
Weill Cornell Medical College


akocharian@houstonmethodist.org
Biography

Dr. Kocharian earned his M.S. in Solid States Physics in 1977 and his Ph.D. in Crystallography and Crystallophysics in 1982 from the Yerevan State University in Armenia (former USSR). In 1996 he completed a two-year retraining program in Medical Physics at the University of Wisconsin-Madison, and in 2002, he completed a Fellowship in MRI at the Mayo Graduate School of Medicine in Rochester, Minnesota. Subsequently. In 2002, Dr. Kocharian took a position of MR Systems Engineer at GE Healthcare in Waukesha, Wisconsin. In 2006, he began working at St. Paul Radiology as a Medical Physicist (St. Paul, Minnesota). In 2014, Dr. Kocharian joined the Houston Methodist Hospital as Senior Imaging Physicist supporting diagnostic imaging practice, including research projects, accreditation and annual surveys of MRI, CT, R&F, PET/CT and mammography systems, MRI safety, optimization of clinical protocols and image quality.

Dr. Kocharian is a certified Diagnostic Medical Physicist by the American Board of Radiology. He is a member of national and international professional organizations, including the International Union of Crystallography, the American Association of Physicists in Medicine, the American College of Radiology, and the International Society for Magnetic Resonance in Medicine, where he serves as a member of the Safety Committee.

Description of Research

Dr. Kocharian has extensive experience in MR systems and RF coil design. He holds patents for body transmit-receive RF coils and developed a small extremity transmit-receive RF coil with further implementation into clinical practice. He has participated in a number of clinical trials, including a multi-institutional research study using diffusion tensor imaging in patients diagnosed with acute lymphoblastic leukemia. Currently Dr. Kocharian supports the MR imaging of a multi-institutional research study for mild traumatic brain injuries sponsored by GE Healthcare and the NFL.

Education & Training

MS, Yerevan State University
PhD, Yerevan State University
Publications

Post-craniopharyngioma and cranial nerve-VI palsy update on a MS patient with major depression and concurrent neuroimmune conditions
Sachinvala, ND, Stergiou, A, Haines, DE, Kocharian, A & Lawton, A 2019, , Brain Sciences, vol. 9, no. 10, 281. https://doi.org/10.3390/brainsci9100281

Method and apparatus to generate a circular polarized RF field independent of subject asymmetry
Kocharian, A, Boskamp, EB & Blawat, LR 2007, , Patent No. 7173425.

Method and apparatus to generate a circular polarized RF field independent of subject asymmetry
Kocharian, A, Boskamp, EB & Blawat, LR 2007, , Patent No. 7285957.

Method and apparatus to generate a circular polarized RF field independent of subject asymmetry
Kocharian, A, Boskamp, EB & Blawat, LR 2006, , Patent No. 7088100.

Pediatric and Adult Cochlear Implantation
Witte, RJ, Lane, JI, Driscoll, CLW, Lundy, LB, Bernstein, MA, Kotsenas, AL & Kocharian, A 2003, , Radiographics, vol. 23, no. 5, pp. 1185-1200. https://doi.org/10.1148/rg.235025046

Hybrid phased array for improved internal auditory canal imaging at 3.0-T MR
Kocharian, A, Lane, JI, Bernstein, MA, Lin, C, Witte, RJ, Huston, J & Felmlee, JP 2002, , Journal of Magnetic Resonance Imaging, vol. 16, no. 3, pp. 300-304. https://doi.org/10.1002/jmri.10165

Wrist: Improved MR imaging with optimized transmit-receive coil design
Kocharian, A, Adkins, MC, Amrami, KK, McGee, KP, Rouleau, PA, Wenger, DE, Ehman, RL & Felmlee, JP 2002, , Radiology, vol. 223, no. 3, pp. 870-876. https://doi.org/10.1148/radiol.2233010824

Determination of appropriate RF blocking impedance for MRI surface coils and arrays
Kocharian, A, Rossman, PJ, Hulshizer, TC, Felmlee, JP & Riederer, SJ 2000, , Magnetic Resonance Materials in Physics, Biology and Medicine, vol. 10, no. 2, pp. 80-83. https://doi.org/10.1016/S1352-8661(00)00071-5

Simultaneous image acquisition utilizing hybrid body and phased array receiver coils
Kocharian, A, Felmlee, JP, McGee, KP, Riederer, SJ & Ehman, RL 2000, , Magnetic Resonance in Medicine, vol. 44, no. 4, pp. 660-663. https://doi.org/10.1002/1522-2594(200010)44:4<660::AID-MRM23>3.0.CO;2-S

Imaging characteristics of x-ray capillary optics in digital mammography
Kruger, DG, Abreu, CC, Hendee, EG, Kocharian, A, Peppler, WW, Mistretta, CA & MacDonald, CA 1996, , Medical Physics, vol. 23, no. 2, pp. 187-196. https://doi.org/10.1118/1.597703

Digital Mammography with Use of X-ray Capillary Optics
Kocharian, A, Peppler, WW, Kruger, DG, Abreu, CC & MacDonald, CA 1995, Radiology, vol. 197, no. Supplement, pp. 357.

The Crystal Structure of Kamphaugite-(Y)
Kocharian, A, Romming, C & Raade, G 1993, , European Journal of Mineralogy, pp. 685.

An Investigation of Influence of Radiation Defects on X-ray Diffraction in the Perfect Silicon Crystals
Kocharian, A, Bezirganian, PH, Sedrakian, AH & Papoian, AA 1988, Physica B: Condensed Matter, pp. 118.

1,1-Dibromo-2-Phenyl-2-(2-Propenyl) Cyclopropane: Its Crystal Structure and Its 1H NMR Spectrum Containing an Unusual Long-Range Coupling
Kocharian, A, Nilsen, AV, Pettersen, A, Romming, C & Sydness, L 1988, Acta chemica Scandinavica, pp. 463.

An Investigation of the Period of Displacement Fringes in Bent Silicon Crystals
Kocharian, A, Sedrakian, AH & Papoian, AA 1987, Crystallografia, vol. 32, pp. 513.

Focusing X-ray Camera for the Powder Investigations
Kocharian, A, Berzirganian, PH, Papoian, AA & Semerjian, HS 1986, Annals of Yerevan State University, vol. 2, pp. 25.

X-Ray Diffraction on the Thick Perfect Silicon Crystals with a Thin Lines of Deformation on the Surface
Kocharian, A, Sedrakian, AH & Papoian, AA 1985, Annals of Yerevan State University, vol. 4, pp. 33.

An Investigation of Period of Displacement Fringes in Bent Perfect Silicon Crystals
Kocharian, A, Sedrakian, AH & Papoian, AA 1985, Deponent ArmNIITI, vol. 38.

The Method of the Investigation of Crystal Structure Perfection
Kocharian, A & Bezirganian, PH 1982, , Patent No. 957077.

The Method of X-ray Interferometry
Kocharian, A, Bezirganian, PH, Trouni, KG & Vardanian, DM 1981, , Patent No. 914976.