A more accurate and safer method for the measurement of scattered radiation in X-ray examination rooms.

Advancements in and increasing usage of complex diagnostic examinations with interventional procedures and surgeries has led to an increase in the occupational radiation doses received by physicians and other medical staff. Measuring the scattered radiation doses received by these staff is vital for the development-effective radiation protection programs. In this study, we measured scattered doses during angiography and digital breast tomosynthesis examinations with small-type dosimeters using our jungle gym (JG) method with measurement points at 50-cm intervals. The results were compared with measurements taken using the conventional ion chamber method. The JG method uses paper pipe tubes and a plastic joint structure and allows measurements at different points inside an examination room. The difference between measurements can be attributed to the radiation absorption characteristics of the components used in the JG method. A maximum radiation dose reduction of 20% was observed due to absorption by the JG components. This effect was smaller than the measurement error produced because of reproducibility issues and other limitations of the conventional method. The conventional measurement has disadvantages that are associated with the reproducibility of measurement points, equipment load, and the radiation exposure experienced by the measurer. The proposed JG method exhibits significant improvements in all these aspects. Furthermore, the measurer does not have to be present in the measurement room; therefore, the JG method is extremely safe and useful for radiation protection.

A Report of Consideration for Physician's Recognition Award (PRA) in American Medical Association / 医学教育

The committee of continuing medical education in Japan Society for Medical Education discussed on PRA of American Medical Association [AMA]. We have first analyzed the brochure of PRA for the members of AMA, and then prepared the questionnaire for AMA. We were able to obtained the answers to the questionnaire which were sent to AMA through courtesy of Japanese Medical Association (JMA). It was realized that AMA emphasizes an importance of PRA for medical practice to the patients; nevertheless acquisition rate of PRA is actually low, and so AMA proceeds with efforts towards completion of PRA.

The Seminar on Family Medicine for the Jikei University School of Medicine. The Result of 10 Years / 医学教育

In March 1986, an academic program on family care medicine was started at Jikei University School of Medicine upon consultation with Prof. Masakazu Abe, then President of the Jikei University School of Medicine, and Dr. Tomojiro Nagai, founder of the Medical Practitioners' Association of Japan. The program offers two elective seminars on family care medicine in the spring and summer for 4th and 5th year medical students. The objective was to give students opportunities to visit and observe medical care provided by practitioners, to teach them the importance of the function of family physicians, and to offer them options in their future careers.<BR>The total number of participating students from the first through 20th seminars was 121, with a maximum number of participants per seminar of 11 and a minimum of 3 (average of 6). A total of 37 instructors took part in the program by giving from 1 to 18 seminars per instructor (average of 3.3). We found these seminars to be highly educational not only for the students but also for the instructing physicians.