* TITLE Medical Studies of the of the Marshall Islands Accidentally Exposed to Fallout CONTRACTOR NAAAE 2G. 1. Detail Attachments. Other. HA-02-01-01 | Assacioted Universities, Inc. DATE PREPARED N CODE BUDGET AND REPORTING People CODE BNL WP NUMBER 03/31/Ax TASK NO. ‘ REV. NO, 0 cont. cont. Capital Equipment Requirements for FY 1983. cont. pulse~stepping motors driving a precision machine tool scanning table, under computer control, acquiring counts from characteristic x and gamma rays in CAMAC scalers and storing. these in an LSI-11 in the CAMAC controller. Data can be archived on floppy discs for analysis and image production. A monitor display will be included, but final high quality images will be produced in the nuclear medicine general purpose image analysis computer (PDP 11/34 with a high-performance cisplay). This system will provide high quality diagnostic images that scale precisely to the anatomical size of the neck. Nodules can then be marked on the image to compare precisely what is felt by the physician and what is detected by the imaging procedure. The x-ray fluorescence scan provides information on the todine content of the thyroid that can be differentiated from findings on solid tumors by ultrasound imaging. The x-ray fluorescence method yields data with low false negative rate; veys very low radiation dose to the subject (< 100 mrem/study--thyroid dose, tially O whole body dose); con- essen- and should be used in populations in which the risk of thyroid cancer is high and where there is reason to minimize radiation exposure. One-half the cost of the system ($20,000) is requested for studies of Marshallese patients. The balance of the cost will be requested in the Nuclear Medicine Program budget area (HB-02-O1). A portable x-ray unit ($7,000) is required to replace a device that is expected to be beyond economical repair. The unit currently in use by Medica] Team surveyors is exposed to salt air and water. It is essential that the survey team have equip- ment that is reliable and as maintenance free as possible. HA -OA-S _ *) :