Bilancio della gravità dell'enfisema polmonare mediante tomografia computerizzata. Confronto fra tomografia computerizzata ad alta risoluzione, valutazione obiettiva con maschera di densità e test funzionali.

Translated title of the contribution: The assessment of the severity of pulmonary edema by computed tomography. A comparison between high-resolution computed tomography, objective evaluation with density masks and functional tests

M. Zompatori, G. Gavelli, M. Fabbri, M. R. Rimondi, R. Canini, M. Cavina, A. Buscaroli, C. Barbara

Research output: Contribution to journalArticlepeer-review

Abstract

The results of high-resolution computed tomography (HRCT) were correlated with those of pulmonary function tests, chest films and CT expiratory density mask values in the evaluation of pulmonary emphysema in 33 symptomatic subjects. Emphysema was quantitated with both subjective and objective measurements. Conventional chest films were useful to diagnose severe emphysema but its actual extent was more reliably evaluated with CT scoring systems. HRCT and density mask correlated well with function tests, but the former method exhibited stronger correlation with carbon monoxide diffusion capacity. The opposite was true for hyperinflation and expiratory obstruction variables. Subjective CT estimates, which are quick and easy to perform, were seen to correspond more specifically to the pathophysiologic derangement and should therefore be used to evaluate the anatomic extent of disease. The functional severity of emphysema correlated only with the overall extent of disease and not with its regional distribution in the upper or lower lungs. Finally, in 4 cases (12.1%) with low CT scores, FEV1 was reduced but diffusion capacity values were normal. In one of these patients HRCT showed signs of bronchiolitis. In fact, small airway disease might be a more critical factor in determining functional impairment than the actual anatomical emphysema.

Translated title of the contributionThe assessment of the severity of pulmonary edema by computed tomography. A comparison between high-resolution computed tomography, objective evaluation with density masks and functional tests
Original languageItalian
Pages (from-to)54-61
Number of pages8
JournalRadiologia Medica
Volume86
Issue number1-2
Publication statusPublished - Jul 1993

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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