Effects of Roentgen Radiation on Growing Bone

Autor: Howard J. Barnhard, M. E. Davis, George H. Kamp
Rok vydání: 1963
Předmět:
Zdroj: Radiology. 80:306-308
ISSN: 1527-1315
0033-8419
DOI: 10.1148/80.2.306
Popis: Our earlier studies of the effects of roentgen radiation on growing bone (1) and the method of accomplishing accurate small-field collimation of the beam (2) have been previously reported. This paper expands the roentgen findings to include independent irradiation of the metaphyses and epiphyseal lines (physis) of the ulna and radius. The changes described in this report will be further investigated by histologic, chemical, and other methods. Mongrel dogs averaging ten weeks of age were irradiated with single doses of 800 or 1,500 r measured in air, at 220 kv, with a 7.7 mm. Al h.v.l. In all studies, the higher the dose of radiation, the earlier and more marked the changes, and more persistent the residua. All findings described in this study represent changes not seen in the opposite (control) leg. Metaphysis No significant difference was observed between the reaction of the ulnar and radial metaphyses (Fig. 1). The irradiated areas became radiodense in about two days after administration of 800 or 1,500...
Databáze: OpenAIRE