Figure 11.

Role of quantitative lung perfusion scintigraphy before and after percutaneous stenting of a left inferior pulmonary vein stenosis in an adult secondary to percutaneous radiofrequency catheter ablation for atrial fibrillation. (A) Pre-treatment quantitative lung perfusion scintigraphy demonstrates decreased perfusion of the left lung as compared to the right lung; (B) post stenting quantitative lung perfusion scintigraphy demonstrates improved perfusion to the left lung when compared to the pre-treatment study.