RESUMEN
Minimal pneumatization of the temporal bone is characteristic of otitis media. The classic radiographic assessment of mastoid air cell system size is the Runström II view, but the Law lateral view is the commonly used clinical view in the United States. Isolated temporal bone specimens are most accurately positioned using a modified Law Lateral view (with the film perpendicular to the central X-ray beam). Computerized tomography is the best radiographic means of assessing mastoid pneumatization. The mathematical relationships of mastoid pneumatization size determined by the Runström II, Law, and modified Law lateral radiographs, and computerized tomography were determined in 30 adult cadaver specimens. These data may facilitate additional study of otitis media.
Asunto(s)
Apófisis Mastoides/diagnóstico por imagen , Adulto , Aire , Humanos , Otitis Media/etiología , Hueso Temporal/diagnóstico por imagen , Tomografía Computarizada por Rayos XRESUMEN
Minimal pneumatization of the temporal bone is characteristic of otitis media. The classic radiographic assessment of mastoid air cell system size is the Runstrom II view, but the Law lateral view is the commonly used clinical view in the United States. Isolated temporal bone specimens are most accurately positioned using a modified Law lateral view (with the film perpendicular to the central X-ray beam). Computerized tomography is the best radiographic means of assessing mastoid pneumatization. The mathematical relationships of mastoid pneumatization size determined by the Runstrom II, Law, and modified Law lateral radiographs, and computerized tomography were determined in 30 adult cadaver specimens. These data may facilitate additional study of otitis media.
RESUMEN
Conflicting results have arisen from studies concerning the correlation (if any) between climatological changes and the frequency of painful episodes in the sickle cell population. During a 13 month period records of 71 patients with hemoglobin genotypes SS or SC were reviewed. Data analysis failed to reveal an association between the frequency of painful sickle cell crisis and a number of weather and environmental variables. We were unable to demonstrate relationships between the climatologic factors of temperature, humidity, carbon monoxide level and precipitation in the frequency of 362 pain crises in 71 sickle cell patients during a 13 month period.