RadiAnt DICOM Viewer - Discussion Forum
stenosis % for carotid imaging

it would be nice to have a measurement tool to quantify the degree of stenosis in carotid imagin (US, CT and MR)

two methods exists, NASCET and ECST, personally I prefer ECST which is easier to calculate


Nov 15, 2013 07:53 AM
by Tommy
Tommy, I'm skeptical about automated (if that's what you meant) analysis of vascular stenosis. You rarely get a regular plaque that can be easily quantified. Also, there are often artifacts from calcifications that can affect calculations.
PACS, 3D MPR, VR - these are our priority features right now...


Nov 17, 2013 08:55 PM
by RadiAnt
I'm thinking of a very simple measurement bidimensional tool... just draw first diameter, then draw second one and Radiant makes the % calculation of the ratio between them.

actally I can do it with the line tool but I have to to the calculations


Nov 18, 2013 02:59 AM
by Tommy
Still, you rarely have a plaque that leaves regular, circular lumen. Thus, basing calculation just on one dimension will be inacurrate...


Nov 20, 2013 02:22 PM
by RadiAnt
you are right but is still better than nothing


Nov 21, 2013 07:13 PM
by Tommy
just a reminder to implement a simple line measure ratio tool that could be used to assess the degree of carotid stenosis or even the degree of vertebral wedge fracture.

as said before it would be a simple 2 segments line measure...
you draw the first line, then the second and the software tells you the percentage difference...

so if segment 1 is long 2 cm, and segment 2 is 0.5 cm, you get 75%


Nov 18, 2017 06:25 AM
by Tommy
Ping received :-)


Nov 18, 2017 05:21 PM
by RadiAnt
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