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Acute bronchospasm on a computed tomography scan. (A-C) Baseline computed tomography images of the trachea, carina, and main bronchi. (D-F) Computed tomography images during acute bronchospasm at the trachea (arrow up), carina (arrow sideways), and main bronchi (right bronchus: arrow down). (G-I) Computed tomography images of the trachea, carina, and main bronchi 10 minutes after the administration of albuterol, which show resolution back to baseline.
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CT scan at the time of wheezing showed simultaneous acute narrowing of the trachea and both main bronchi (Figure 1A-F). CT scans prior to wheezing, while wheezing, and after treatment of wheezing and resolution of bronchospasm were each analyzed and measured at five levels for each time point (Table 1). A subsequent CT scan taken 10 minutes after administration of inhaled albuterol and resolution of wheeze showed resolution of size changes back to baseline (Figure 1G-I).