Fractal analysis of pulmonary arteries: the fractal dimension is lower in pulmonary hypertension.
J Thorac Imaging
; 9(1): 8-13, 1994.
Article
en En
| MEDLINE
| ID: mdl-8114170
We analyzed the spatial structure of contact radiographs of barium-filled pulmonary arteries of rats raised in room air and in two environments that induce pulmonary arterial hypertension (PAH)--hypoxia and hyperoxia. We found that the spatial structure of the pulmonary arteries was fractal in both the control and the hypertensive lungs. The fractal dimension of the pulmonary arteries of the control lungs was 1.62 +/- 0.01 (mean +/- SEM), which is greater than that of both the hypoxic lungs 1.50 +/- 0.03 (p < 0.01) and the hyperoxic lungs 1.44 +/- 0.01 (p < 0.01). There was no significant difference between the hypoxic and hyperoxic lungs. The fractal dimension may be a useful clinical index to quantify pathologic changes in the pulmonary arterial tree.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Arteria Pulmonar
/
Fractales
/
Hipertensión Pulmonar
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
Límite:
Animals
Idioma:
En
Revista:
J Thorac Imaging
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
1994
Tipo del documento:
Article