Alexei Chvetsov, Ph.D., Assistant Professor and Medical Physicist
Specialty Interests:  Inverse problems in radiotherapy physics, application of regularization methods to improve stability and accuracy of inverse treatment planning for IMRT, reconstruction of electron spectra from depth dose distributions for Monte Carlo based treatment planning
Graduate School: Ph.D., Moscow State Engineering Physics Institute, Russia; M.S., Moscow State Engineering Physics Institute, Russia
ABR and Canadian Board of Medical Physics Board Certified
Recent Publications:

• A.V. Chvetsov, D. Calvetti, J.W. Sohn, and T.J. Kinsella, Regularization of inverse treatment planning for intensity modulated radiation therapy, Medical Physics 32(2): 501-514 (2005)
• A.V. Chvetsov, L-curve analysis of radiotherapy optimization problems, Medical Physics 32(8): 501-514 (2005)
• J. Wei, G.A. Sandison, and A.V. Chvetsov, Reconstruction of electron spectra from depth doses using adaptive regularization, Medical Physics (accepted) (2005)

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Valdir Colussi, Ph.D., Medical Physicist
Specialty Interests:  Photodynamic Therapy, Intraoperative Radiotherapy, Brachytherapy / special procedures
Graduate School: Ph.D., University of Campinas; M.S.,  University of  São Paulo
ABR Board Certified

Publications:

• Y Seo, T Yan, JE Schupp, V Colussi, KL Taylor, TJ Kinsella. Differential radiosensitization in DNA mismatch repair-proficient and -deficient human colon cancer xenografts with 5-iodo-2-pyrimidinone-2'-deoxyribose. Clin Cancer Res. 2004 Nov 15;10(22):7520-8.

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Ravi Kulasekere, Ph.D., Medical Physicist
Specialty Interests:  Tomotherapy (IGRT), Film Dosimetry
Graduate School: University of Missouri-Rolla, Ph.D. in Neutron Reflectometry from Thin Films
ABR Board Eligible

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P Scott Mange, M.S., Medical Physicist
Specialty Interests: Electronic Portal Imaging
Graduate School: M.S., Medical College of Ohio
Board Certified - ABR

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Marcel Marcu, Ph.D., Medical Physicist
Specialty Interests:  HDR brachytherapy
Graduate School: M.S., McMaster University, Canada; M.S., University of Bucharest, Romnia, 1981
ABR Board Certified

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Kunjan Pillai, M.S., Clinical Chief of Medical Physics
Specialty Interests:  Total body irradiation, special procedures
Research / Publications: Graduate School: M.S., Sauger University, India;
ABR Board Certified

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D. Randall Smith, B.S., Clinical Engineer III
Specialty Interests:  IMRT Quality Assurance, Gamma Knife
Graduate School: Case Western Reserve University, M.S. Physics (current candidate)

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Jason Sohn, Ph.D., Associate Professor and Associate Director, Division of Physics and Dosimetry
Specialty Interests:  IMRT, Image guided- radiotherapy
Graduate School: Ph.D., Medical College of Ohio; M.S., University of Wisconsin
ABR Board Certified



Publications:

• Huq MS, Sohn JW.  Over the forseeable future, the growth in technical complexity of radiation therapy will continue to drive the demand for more medical physicists.  Med Phys. 2004 Nov;31(11):2939-40.

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Joseph Syh, Ph.D., Assistant Professor and Medical Physicist
Specialty Interests:  Stereotactic Radiosurgery, HDR & Tomotherapy (IMRT/IGRT)
Graduate School: Ph.D., University of Nebraska; M.S., North Carolina University, 1989
ABR Board Certified

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Barry Wessels, Ph.D., Professor and Director of Physics and Dosimetry
Specialty Interests:  Radioloabeled Antibody Therapy (Dosimetry and Clinical Trials), Image-guided Radiotherapy , IMRT
PostDoctoral Training: University of Wisconsin, Medical Physics
Graduate School: Ph.D., University of Notre Dame, Low-energy Nuclear Physics
ABR Board Certified



Publications:

• Wessels B, Summary and Perspectives on Kidney Dose-Response to Radionuclide Therapy, Cancer Biotherapy & Radiopharmaceuticals, 19(3): 388-90, 2004
• Wessels BW, Bolch WE, Bouchet LG, Breitz HB, Denardo GL, Meredith RF, Stabin MG, Sgouros G; American Association of Physicists in Medicine, Bone marrow dosimetry using blood-based models for radiolabeled antibody therapy: a multiinstitutional comparison., J Nucl MedOct;45(10):1725-33, 2004.
• Bouchet LG, Bolch WE, Blanco HP, Wessels BW, Siegel JA, Rajon DA, Clairand I, Sgouros G, MIRD Pamphlet No 19: Absorbed fractions and radionuclide S values for six age-dependent multiregion models of the kidney.  J Nucl Ned 2003; 44: 1113-47.
• Breitz H, Wendt R, Stabin M, Bouchet L, Wessels B.  Dosimetry of High Dose Skeletal Targeted Radiotherapy (STR) with 166Ho-DOTMP.  Cancer biotherapy and Radiopharmaceuticals 2003, 18, 2.
• Wu QJ, Wessels BW, Einsein DB, Maciunas RJ, Kim EY, Kinsella TJ.  Quality of coverage: conformity measures for stereotactic radiosurgery.  J Appl Clin Med Phys. 2003 Autumn;4(4):374-81.
• Xing Lei, Wessels BW.  The value of PET/CT is being over-sold as a clinical tool in radiation oncology.  Med Phys. 2005 Jun;32(6):1457-8

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Yuxia Zhang, M.S., Clinical Engineer
Specialty Interests:  IMRT, Image fusion, Radioimmunotherapy (RIT)
Graduate School: M.S., University of Toledo, Toledo, Ohio