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Biomedical subjects

C G Baker

Publications and source records attributed to C G Baker.

At least 19 recordsLinked to original sources
PubMed1981

Future of the NIH.

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National Institutes of Health (U.S.)↗
PubMed1981

Energy-selective filtration of dental x-ray beams.

Samarium is known for its ability to filter simultaneously low- and high-energy x-ray photons from an x-ray beam that are not useful in producing a diagnostic radiograph. This study was undertaken to determine the optimum thickness of samarium required to minimize patient exposure and exposure time. The results indicate that use of a filter thickness of 0.16 mm. minimized patient radiation exposure and permitted the use of an exposure time sufficiently short to minimize motion unsharpness. The incorporation of a 0.16 mm. samarium filter in the x-ray beam reduced exposure by about 40 percent as compared to a 2.5 mm. aluminum filter; the exposure time must be increased approximately twice to obtain optical densities equivalent to those produced with aluminum filtration.

Filtration↗
PubMed1978

Geroderma osteodysplastica. A report of two affected families.

This paper describes two families in which four boys and two girls were affected with geroderma osteodysplastica. The major features of this syndrome include a droopy, jowly, prematurely aged appearance that has been likened by previous authors to the dwarfs in Walt Disney's 'Snow White.' Also, their skin lacks normal elastic recoil. The bones are osteoporotic and susceptible to fractures, particularly the vertebrae, which show compression with anterior wedging and biconcavity. The findings in the present families are compared with those in the originally reported family. There was a high degree of consanguinity between the parents in both of the present families and the previous hypothesis of X-linked inheritance is questioned.

Bone Diseases, Developmental↗
PubMed1977

"Malignant disease in the jaws".

Radiologic interpretation of malignant disease of the oral cavity, maxilla and mandible is often difficult. This is usually due to the fact that benign osseous diseases may mimic malignant lesions. This review attempts to provide a framework of interpretive criteria for establishing a radiologic diagnosis of malignancy.

Adenocarcinoma↗