Purpose: To evaluate the feasibility of applying color-coded DSA to quantitatively assess the clinical outcome of angioplasty for lower extremity vascular disease.
Material and Methods: 12 patients with lower extremity vascular disease were treated with endovascular angioplasty (11 male, 1 female, mean age 72.55±7.46）.Both DSA series before and after stent implantation were analyzed with a color-coded DSA tool (syngo iFlow, Siemens Healthcare, Forchheim, Germany) which quantitatively calculates the time intensity curve of each pixel on the DSA image. A reference region of interest (ROI) was set at the outflow the pigtail catheter while several other ROIs were set at distal end of the treated vessel segment. Various parameters such as ROI area, time-to-peak (TTP) value was derived to determine the vessel patency. Ankle Brachial Pressure Index(ABI) examination was conducted pre- and postoperatively with doppler ultrasound as a verification of the result from color-coded DSA technique.
Qiu, W,
GUO, X,
Clinical Application of Color-coded DSA in Lower Extremity Vascular Disease Treatment: A Preliminary Study. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/14012221.html
