Comparison of Lung Perfusion Using X-Ray Pulsatility Index With Pulmonary Angiography in Chronic Thromboembolic Pulmonary Hypertension

Key Points

• The study aims to compare the efficacy of X-ray Pulsatility Index (XPI) with pulmonary angiography for lung perfusion assessment in chronic thromboembolic pulmonary hypertension (CTEPH).
• Utilized non-contrast X-ray Pulsatility Index for lung perfusion mapping.
• Compared results with confirmatory pulmonary angiography.
• Evaluated the clinical efficiency of XPI as a diagnostic tool.
• XPI produced lung perfusion maps with high agreement to pulmonary angiography results.
• XPI shows potential as an efficient screening or diagnostic test.
• Improves assessment of pulmonary function in CTEPH patients.