Pulmonary Artery Vasoconstriction Due to Bronchial Obstruction.
Thomas SalibaHanna SalameDenis TackPublished in: Journal of the Belgian Society of Radiology (2022)
Pulmonary artery (PA) vasoconstriction resulting from pulmonary ventilation/perfusion imbalance is infrequently detected with computed tomography (CT). An 85-year-old woman presented to the emergency room with dyspnea and desaturation, despite oxygen supply. A CT pulmonary angiography (CTPA) revealed massive central bronchial mucoid impaction in all but the right upper bronchus. Only the right upper pulmonary veins were opacified, which we speculate was linked to the central bronchial obstruction, with identical distributions, through vasoconstriction of the corresponding PAs. Teaching Point: This case demonstrates the unusual imagery-physiology correlation of pulmonary artery vasoconstriction that cannot normally be detected by CTPA.
Keyphrases
- pulmonary artery
- pulmonary hypertension
- computed tomography
- contrast enhanced
- pulmonary arterial hypertension
- dual energy
- coronary artery
- image quality
- positron emission tomography
- magnetic resonance imaging
- optical coherence tomography
- public health
- healthcare
- intensive care unit
- single cell
- case report
- respiratory failure
- palliative care
- extracorporeal membrane oxygenation