Louisiana State University Physics & Astronomy

Kenneth R. Hogstrom
Professor of Physics

Ph.D., 1976 - Rice University

Medical and Health Physics - Radiation Physics

Office: 437 Nicholson
Telephone: 0590-Office
E-mail:

Director, Medical Physics and Health Physics Program

RESEARCH INTERESTS

The application of electron-beam transport calculations in radiation oncology has been the primary focus of my research, developing treatment tools and treatment techniques that provide the patient with the optimal dose distribution when electron radiation is prescribed by the radiation oncologist. I led the development of the redefinition pencil-beam dose algorithm, and my group has recently researched its application to electron arc therapy. Also, I have recently led an effort to develop an electron multi-leaf collimator, capable of providing more effective and efficient electron therapy. I plan to focus on developing its use for intensity modulated, conformal electron therapy, particularly in understanding the utility of mixing electron and x-ray intensity modulated therapy. An evolving, new area of research, which I hope to pursue with other members of the physics group at MBPCC, is image-guided therapy. The ability to target dose to individual patient tumors allows radiotherapy to be delivered with minimal risk to nearby normal tissues. Specifying the tumor and normal tissue on a daily basis and during treatment are potential roles of PET-CT, gated therapy, and CT-based radiotherapy. I recently became interested is the application of laser particle accelerators to radiology. Table-top terawatt (T3) lasers can accelerate electrons and protons to therapy energies over the distance of a tenth of a millimeter, offering the potential to compete in the future with existing radiotherapy accelerator technology. The free-electron laser provides monochromatic x-rays, which should be advantageous for CT mammography and X-ray absorption therapy applications, a new area to be pursued with the LSU CAMD synchrotron.

CURRENT AND SELECTED PUBLICATIONS

M. Price, K. Hogstrom, J. antolak, R. Allen White, C. Bloch, R. Boyd, "Calculating percent depth dose with the electron pencil-beamredefinition algorithm," J. Appl. Clin. Med. Phys. 8, 2 (2007).
J. Richert, K. Hogstrom, R. Fields, K. Matthews, and R. Boyd, "Improvement of field matching in segmented field electron conformal therapy using a variable SCD application," Phys. Med. Biol. 52, 2459 (2007).
K. Hogstrom and P. Almond, "Review of electron beam therapy physics," Phys. Med. Biol. 51, R455 (2006).
Pai-Chun M. Chi, Kenneth R. Hogstrom, George Starkschall, Robert A. Boyd, Susan L. Tucker and John A. Antolak, "Application of the electron pencil beam redefinition algorithm to electron arc therapy," Med. Phys. 33, 2369 (2006).
Pai-Chun Chi, Kenneth R. Hogstrom, George Starkschall, John A. Antolak and Robert A. Boyd, "Modeling skin collimation using the electron pencil beam redefinition algorithm," Med. Phys. 32, 3409 (2005).

Updated: Thu, 11-Oct-2007 2:28 PM