Modern medicine makes use of an increasing array of technologies based on the application of principles of physics. Notable are those involving therapeutic radiology, lasers and medical imaging (such as MRI -- Magnetic Resonance Imaging, ultrasound, and PET -- Positron Emissions Tomography scans).  Medical Physicists (see American Association of Physicists in Medicine (AAPM) and  Medical Physics National Report)  are trained to work in these areas. Physicists who belong to the AAPM (which has a large memberhip), are interested mostly in the use of radiation in cancer treatment (oncology), and have direct dealings with patients.  There is another organization, the International Society for Magentic Resonance in Medicine (ISMRM) that includes scientists from a variety of science and engineering departments and deals with diagnositics and  "medical imaging physics"  (see for example the Harvard-MIT program,).

In general, the MS degree in Physics with Emphasis on Medical Physics is restricted to University of Rochester students in the 3-2 program. However, a course of studies leading to a MS in Physics, with Emphasis on Medical Physics is available to students who are in the Rochester area and already have a BA or BS in Physics by special arrangement. For example, arrangements can be made for University of Rochester employees in local firms who are sponsored by their employers.  A program of study (satisfying the requirement for a MS in Physics shown below) is arranged in consultation with the student's MS advisor.

Requirements for a MS in Physics taken from
http://spider.pas.rochester.edu/mainFrame/education/special/special3-2.html
For the Master's degree, the requirements include at least 30 credit hours of coursework beyond the requirements for the Bachelor's degree, with the following stipulations:  At least 12 hours must be at the 400 level or higher.

For Plan A (MS Thesis), 6-12 hours must represent the dissertation research/reading  At most 6 hours may be reading course(s).  At most 10 hours may be transfer credits, including courses taken at the University of Rochester prior to graduate matriculation in the program (The regulations state that "Ordinarily, no course completed before the candidate has received the bachelor's degree may be included in the graduate program.'' This rule is waived for the 3/2 program.)

For the Specialization in Medical physics the three 400 level courses, the MS Thesis and the 30 credit hours are typically satisfied by the following courses:

PHY445 Advanced Lab - special section (4 credit)
PHY440  Nuclear and Particle Physics (4 credit)
PHY422/ECE452/    Medical Imaging  (4 credit, Parker)
PHY 423   Topics in Health Physics (4 credit, Schell) 
PHY513  Magnetic Rersonace Imaging: from Spins to Brain (4 credit, Zhong) 
PHY421RAD501  Seminar in the Physics of Medical Imaging (2 credit,Foster)
PHY 495   MS Thesis in Medical or Biological Physics or Medical/Biological Optics (6-12 credits)
BIO 201  Human Anatomy (with Lab)
BIO 204 Human Physiology (4 credit, with Lab)