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The Radiological Physics Services is responsible for acceptance testing and quality control testing of medical imaging equipment at the University of Wisconsin Hospitals and Clinics and at medical imaging facilities throughout Southern Wisconsin. RPS also provides other services, including the duties of Radiation Safety Officer for Diagnostic Radiology; radiation safety testing of lead aprons, gloves, and shields; patient and fetal dose calculations; testing film screen cassettes; and development of imaging protocols, particularly to reduce radiation exposure while maintaining outstanding image quality.

RPS provides technical assistance to the clinical staff and maintenance personnel on equipment repair, equipment use, radiation safety, and research presentations. RPS performs testing and coordination to maintain hospital accreditation by the Joint Commission of Accreditation of Hospitals Organization (JCAHO), the American COllege of Radiology (ACR), and the US Food and Drug Administration.


RPS is equipped with test objects, quality assurance tools, and phantoms for complete testing of x-ray, ultrasound, and CT scanning instruments.


In addition to the above services, RPS organizes and teaches courses for the Radiology residents on the Physics of Diagnostic Radiology. It participates in the teaching of medical physics graduate students, student technologists, ultrasound sonographers, and clinical genetics trainees. RPS provides a unique educational experience for medical physics graduate students who work as assistants in the group. Students gain valuable experience in the clinical aspects of medical physics in medical imaging and are trained in the practical aspects of becoming clinical diagnostic medical physicists.


The RPS is directed by Dr. John Vetter. Dr. Frank Ranallo directs CT testing and protocol development as well as the Residents Pysics Course.


Contact John Vetter, or Frank Ranallo, to arrange testing or consulting.

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