Medical Physics 3.0 and Its Relevance to Radiology

Medical Physics 3.0 is a grassroots movement within the medical physics community to re-envision a new commitment and engagement of physics in the care process. In this model, a physicist, present in either the clinic or the laboratory, is to practice physics for the direct benefit of the patient, either immediately in the clinical setting or eventually through research. As a demonstration of this shift of focus, this article offers a framework by which medical physics can better serve the rigor and quality of radiological practice. This is accomplished through (1) patient-centered metrics of imaging dose and quality that are generalizable across and relatable to varying tasks; (2) prospectively prescribing protocols and dose based on needed quality; and (3) retrospectively monitoring and targeting dose and quality across practice. The article also suggests a model for this opportunity in which the current "consultant" physicist is vested with the responsibility to fully contribute his or her essential expertise in the care of individual patients.