Fig. 2From: The efficacy of percutaneous transluminal angioplasty and arteriovenous fistula reconstruction for immature arteriovenous fistulaUltrasound images of the vessel after PTA procedure. Abbreviation: PTA, Percutaneous Transluminal Angioplasty. Note: (A) Ultrasound shows an increase in the lumen diameter of the original stenosis after balloon dilation (arrow); (B) Color Doppler flow image shows adequate blood flow in the original stenosis segment (arrow)Back to article page