CAT3D 7.07 Released

[armando]

- If the HOT_POI exist, CAT3D will search for the HOT_POI every time the plan is modified. Note that this search is non-lineal in a concave region with multiple local maximum, so the HOT_POI found is not necessarily the absolute hot point. On the other hand, the only way to be sure that the hot point is the absolute maximum is to use a very small calculation grid which could take too much CPU time. HOT_POI is first created by the DVH. If the hot_poi is taking to much time, remove the HOT_POI .

- NEW: Shields can be exported to XYZ format. Two new parameters in the RSD file must be configured: SHIELDDISTANCE and SHIELDTHICKNESS, both in mm. SHIELDDISTANCE is the distance in mm between the source and the farthest side of the shield.

- Protocol information now include the number of fractions, so that total dose for the plan is computed and reported.

- Bug removed in the field editor page. It was a wrong initialization of float fields for edition. Not frequent.

- The isodose shadows now use a color wash style. If color wash effect is desired set the shadows to 3 or more in the isodose dialog.

- Longer edition line for the ROIs in a DVH.

- NPSF model was changed to X. Allen Li empirical formula. See: "Peak Scatter Factors for High Energy Photon Beams" , Med. Phys. June 1999. It is better that BJR supplement 25 because it takes into account the dependency on energy from Co-60 to 24 MV.

- Polygon plane equation (normal to polygons) is computed using Newell's method. It solved some problems with concave polygon interpolations and polygon sorting.

- Remove a POI using CTRL + RightClick with mouse on the poi.

- NEW: In IMRT there is a 3D visualization for Render Modulators. The renderer is other process: Eye3D.exe .

- If you prefer to copy shields with CTRL_V always, not only for parallel opposed fields, include the following line in CAT3D.INI :
CopyShieldAlways = 1;

- New module: brachytherapy templates for prostate planning.

- Better treament of some polygons while in DVH using Newell´s method.

- Render modulator with color representation intensity/flux map.

- In Render Modulator window use <PageUp> or <PageDown> to change field.

São Paulo, february 2010