Results 341 to 350 of about 231,165 (373)
Some of the next articles are maybe not open access.
The Homogeneity of Dosage Distribution in Radiation Teletherapy
The British Journal of Radiology, 1941It has been the custom for a considerable period, to investigate the dosage in radiation teletherapy, in a plane passing centrally through the site of the lesion to be irradiated, or at a number of points distributed throughout the lesion. The radiation fields employed are usually approximately symmetrical about a central axis, and the dosage-rate ...
H. T. Flint, C. W. Wilson
openaire +2 more sources
PERSONAL DIARY OF RADIATION DOSAGE
Journal of the American Medical Association, 1951I. PERSONAL RADIATION DIARIES This is a plea for the adoption of a nationally standardized personal radiation-diary system. The purpose of such a system would be to reduce to a readied exactness the composite previous irradiation record of any individual patient.
J. Sorrentino +2 more
openaire +3 more sources
Quality assurance of radiation dosage: usefulness of redundancy.
Radiology, 1984Regulations for maintaining the calibration of radiation-measuring instruments generally require that they be recalibrated periodically, and some also specify periodic spot-checks. There is a finite probability that changes in the instrument sensitivity will occur between these calibrations or periodic checks.
D Jette, M Rozenfeld
openaire +3 more sources
The Measurement of Tissue Dosage in Radiation Therapy
Radiology, 1939THE measurement of tissue dosage, and its expression in terms of a satisfactory unit, are questions continually before radiologists at the present time. It has long been conceded that it is desirable to know the quantity of radiation delivered to the tissues undergoing treatment.
openaire +2 more sources
Clinical Radiation Dosage, Part II
The British Journal of Radiology, 1949Published data on skin reactions and lethal dose levels for epidermoid cancer have been analysed and mathematical factors suitable for clinical application have been derived. Based on these factors, nomograms have been constructed enabling that tumour dose, which is likely to be most effective in a given set of circumstances, to be computed.
openaire +2 more sources
Radiopharmaceutical Technology, Toxicity and Radiation Dosages
19992-[18F]fluoro-2-deoxy-D-glucose (2-[18F]FDG) is the most frequently used PET radiopharmaceutical in Europe with more than 200 doses administered per week (Meyer et al. 1995). Studies described in the literature were performed with different 2-[18F]FDG preparations, but the preparations do not differ significantly from one another.
P. Oehr, J. Ruhlmann
openaire +2 more sources
Radiation Dosage Estimation and Health Risk-Reply
JAMA: The Journal of the American Medical Association, 1992In Reply. —Drs Maienschein and Peelle's conclusion that "best estimates" of the radiation-cancer dose response from our study of workers at the Oak Ridge National Laboratory 1 should be reduced by nearly an order of magnitude due to radiation dose underestimation is based on faulty logic. It is true that underestimation of doses of more highly exposed
Donna L. Cragle +3 more
openaire +2 more sources
Radiation dosage during AO locking femoral nailing
Injury, 1988Radiation dosages to both the patient and the surgeon were measured during 10 consecutive AO locking nail procedures. The total screening time for each procedure averaged 12 min 8 s; the average screening time for distal locking was 6 min 52 s. Radiation dosages to surgeons' hands, thyroid and gonads and to the patients were well within permitted ...
I.D. Sugarman, I. Adam, T.D. Bunker
openaire +2 more sources
Effects of Low-dosage Gamma-radiation on Soluble Collagen
Nature, 1964THE effects of low-dosage radiation on soluble collagen molecules have not been reported. This low-dosage radiation is suitable for producing initial radiation-induced molecular changes which are described and interpreted in this communication.
Seymour Bakerman, L. Welling
openaire +3 more sources
American Cancer Society lung cancer screening guidelines
Ca-A Cancer Journal for Clinicians, 2013Graham A Colditz +2 more
exaly