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Related Experiment Video

Updated: Mar 20, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

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Excessive Dynamic Airway Collapse Detected Using Nondynamic CT.

Yukinori Harada¹, Tomoo Kondo

¹Nagano Chuo Hospital, Japan.

Internal Medicine (Tokyo, Japan)

|June 3, 2016

Summary

Excessive dynamic airway collapse (EDAC) in asthma patients can be incidentally detected using standard CT scans. Recognizing EDAC on CT may guide treatment strategies for persistent wheezing.

Area of Science:

Pulmonology
Radiology
Medical Imaging

Background:

Excessive dynamic airway collapse (EDAC) is typically diagnosed via dynamic CT scans.
Asthma patients with persistent symptoms may have undiagnosed airway abnormalities.

Observation:

A case report details an asthma patient with wheezing unresponsive to standard treatment.
Nondynamic CT incidentally revealed tracheal narrowing and posterior bronchial wall bulging, suggestive of EDAC.
Bronchoscopy confirmed the diagnosis of EDAC.

Findings:

EDAC was incidentally identified in a refractory asthma patient using nondynamic CT.
Continuous positive airway pressure (CPAP) therapy improved the patient's wheezing symptoms.

Implications:

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Clinicians should consider airway morphology in refractory asthma evaluations.
Incidental EDAC detection on nondynamic CT can inform asthma treatment strategies.
Awareness of EDAC may improve management of difficult-to-treat asthma cases.