Fig. 1From: Effectiveness of a flow confirmation study of a central venous port of the upper arm versus the chest wall in patients with suspected system-related mechanical complicationsNormal flow confirmation study of central venous ports (CVPs). The catheter and port were in the expected location position but broken. Digital subtraction angiography with a manual injection of contrast material through the port revealed normal flow through the CVP system. No CVP system-related mechanical complications were observed. a Normal flow confirmation study of the CVP via the subclavian vein. b Normal flow confirmation study via the brachial veinBack to article page