RadiAnt DICOM Viewer - Discussion Forum
new tool: calculate volume (ellipsoid method)

I got an idea fora new tool...
why not implementing a 3 plane measure tool to calculate prostate volume with the ellipsoid method (width x height x length x 0.52)?

every ultrasound machine has it but when you read MR images of prostate you have to draw the 3 measures separately on an axial and sagittal sequences, then annotate the results and do the math using a calculator.

it would be great if RadiAnt could do the math immediately after drawing the 3 line measurement.

I mean, you take those 3 measures with the standard "line" tool, then you go in the "advanced tool" submenu and click "calculate volume (ellipsoid method).

I think that should not be hard to implement.
think about it.

Tommy


Nov 12, 2016 08:25 AM
by Tommy
Thanks for another idea, Tommy!


Nov 17, 2016 02:03 PM
by RadiAnt
with the same approach you could measure a ratio between 2 measures...
you take 2 lenght measures then calculate the ratios.

i.e. grade a carotid stenosis diameter percentage

i.e. grade an anterior wedge vertebral fractures.


Nov 17, 2016 07:57 PM
by Tommy
another example of use would be the Insall-Salvati ratio for "patella alta/baja" x-ray measures


Nov 18, 2016 04:56 PM
by Tommy
a polite ping to remind these useful measurement tool feature requests.

as suggested a "calculate volume (ellipsoid method" after drawing the 3 main diameters would be very useful when dealing with prostate US images.

and a "calculate ratio" would be a bless when dealing with US, MR and CT of carotid stenosis and even when grading a wedge vertebral fracture.


Jul 22, 2017 10:54 AM
by Tommy
Ping received :-)


Jul 27, 2017 08:48 AM
by RadiAnt
Following Tommy's advices I'd also like to suggest the introduction of area calculation for ROI (drawn, for example, with the pencil tool), since the ellipse tool can't always be 100% accurate.

It would also be extremely useful, in some situations, to generate and calculate the volume obtained from a series of ROI positioned on subsequent slices (and even generate missing ROIs between drawn ROI).

Thank you for your work


Aug 23, 2017 11:30 PM
by Edo
Dear Edo,

Freehand ROI area calculation is something that we plan to add in the future.
We will also consider the volume calculations you mentioned.

Kind regards,
Maciej


Aug 29, 2017 09:38 AM
by RadiAnt
Dear Team Radiant

I would like to suggest you incorporate in the software a tool to measure Consolidation/Tumor ratio (CTR). CTR is a means to classify Ground Glass Opacities of the lung and therefore an essential element to decision making. I think this addition would render your programme unmatchable even if it came with a purchase option (which i hope will not)!

Thank you!


Feb 23, 2018 08:59 AM
by Constantine Soultanis
Hi

In line with the previous comments about ROIs, I suggest you add a 3D quick spherical VOI feature.

This would be very useful for SUVmax measurement in PET, because with 2D ROI one has to draw an ellipse in every single slice of a large lesion searching for the hottest pixel. ROI interpolation would also solve this problem, like in Osirix/Horos, but spherical VOI is much easier and takes less time.

Thanks for your great work. After a long search, I still believe Radiant is by far the best PET/CT viewer for Windows (excluding of course commercial workstations like Oasis, IntelliSpace or Xeleris).


Daniel.


Feb 27, 2018 01:03 PM
by Daniel
@Constantine & Daniel

Thank you for your kind words and the suggestions. The features you mentioned are in our to-do list.


Mar 1, 2018 09:21 AM
by RadiAnt
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