Analyzing angiography sequences typically requires viewing a series of black and white images and noticing the differences the contrast medium created as it passed through the obstructions in the vessels. To help with visualization and to improve diagnosis, Siemens is releasing a new digital subtraction angiography (DSA) software, the syngo iFlow, that automates the process to produce a color image highlighting the path of the contrast medium.
From a Siemens press statement:
The syngo iFlow application, for example, can be used to enhance pre-procedural and post-procedural imaging of patients under treatment for leg stenosis. Flow deviations and the increased utilization of collaterals can more easily be detected prior to intervention, since anomalies more readily attract the physician’s attention due to their specific colors. Following the intervention, the success of a balloon dilatation or stent implantation of a stenosis is readily visible due to the improved flow.
In order to obtain a color image, syngo iFlow takes the time to maximum opacification of each individual pixel, starting with the injection and subsequently visualizing the distribution of the contrast medium through the vessels. These time measurements are then represented by a color allowing visualization of the complete vessel tree in one image.
Press release: Siemens sets a new standard in subtraction angiography
Product brochure: syngo iFlow (PDF)