Documentation/Nightly/Modules/Calculator

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Introduction and Acknowledgements

Authors: Frédéric Panthier, Lounès Illoul, Laurent Berthe, Steeve Doizi, Oliver Traxer Contact: Frédéric Panthier, <email>fredericpanthier@gmail.com</email> License: Slicer License

Module Description

“Calculator” consists in a volumetric evaluation of kidney stones and also provides information on surgical duration. Moreover, it provides the estimated time of lithotripsy and consequently the operative time. It provides in a few seconds a 3D view of the stone(s) and axial, coronal and sagittal views with CT-scan DICOMs.

Use Cases

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Tutorials

Below, we describe the Instructions Guide to use Calculator:

1. Open 3DSlicer and download “Calculator” using the “Extension Manager”
2. Import DICOM data from a CT-scan (better with non-enhanced series)
3. Open “Crop Volume” module
   • “Create a new annotation ROI” (Region Of Interest)
   • Size the ROI in x, y and z axes using axial (red), sagittal (yellow) and coronal (green) view in four-up disposition.
   • Create a new volume (name will be: “name cropped”)
   • Click “Apply” button
4. Open “Calculator” module:
   • Select volume: “name cropped”
   • Choose threshold (houndfields units) minimum and maximun to fit to the stone
   • If there are multiples stones select “split islands into segments” with a recommended “minimum size” of 40 voxels
   • Select a mode of treatment (laser source, core-diameter of laser fiber, laser settings and stone type)
   • Select “show 3D” if you want to visualize in 3D-view the segmented stone(s)
   • Click “Apply” button. A table will appear to show the segment’s name, volume (mm3) and time of lithotripsy (min)

Screenshot

Panels and their use

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Similar Modules

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References

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