Fig. 6From: Transcatheter radiofrequency pulmonary artery denervation in swine: the evaluation of lesion degree, hemodynamics and pulmonary hypertension inducibilityHistological study of percutaneous RF-induced PA wall lesion: a Coagulation necrosis (asterisk) of adventitia with underlying unaltered nerve fiber (arrows), edema in 1/3 media (circle), × 50; b RF-induced dissection (arrow) with transmural PA wall lesion without underlying nerve fibers (asterisk), × 50Back to article page