DoseLab

DoseLab 4.11 released

admin — Fri, 15 Aug 2008 21:10:17 +0000

New features: Pinnacle binary files written by 810 systems are now read correctly.

DoseLab 4.10 released

admin — Fri, 13 Jun 2008 21:12:20 +0000

New features: There is a dynamic wedge automatic film calibration utility, Gafchromic film is now supported (2D uniformity corrections, red channel extraction, and Weiner filter), and a starshot utility.

DoseLab 4.00 released

admin — Fri, 17 Jun 2005 20:20:50 +0000

License file now specifies that DoseLab may only be used as a research system or as part of a film dosimetry system used for the quality control of a linear accelerator.
Switched to MATLAB R14SP2. This means that it should run a little faster, but will require you to download a huge 100 MB MATLAB setup file for compiled programs.
Added gamma index computations to the “Interactive NAT image”, dose histograms, and retrospective analysis tools. Gamma computations search at least 6.5 mm in all directions from each pixel and interpolate images to have spatial resolutions of at least 1 mm/pixel, if necessary.
Removed the film calibration routine due to conflicts with US patent 6,675,116.

DoseLab 3.08 released

admin — Mon, 10 May 2004 20:20:08 +0000

The autonormalization routine has been modified to geometrically constrain the area of the measured and computed images by an amount specified in the new “Default_values_308.txt” file. The lower and upper percentage limits for autonormalization have also been added to this file.

DoseLab 3.07 released

admin — Sun, 18 Apr 2004 20:19:30 +0000

The autonormalization routine has been modified to ignore areas with a measured dose less than 1 cGy. This can occur when the “Film to dose” program does not extrapolate doses. It also uses the region of 80% to 90% of the maximum dose in the computed distribution to select the autonormalization area.

DoseLab 3.06 released

admin — Thu, 19 Feb 2004 20:18:48 +0000

Gamma function analysis has been added to the “Interactive NAT image” window.
A program to automatically compute MLC leaf gap reduction values (using the NOMOS® recommended strip technique) has been added to the “Single Image Analysis” window.
Pinnacle binary files can now have unequal rows and columns.
The measured distribution is now used as the denominator for percent difference images.
When a comparison is normalized, isodose line figures are displayed for both normalized and unnormalized distributions.
All the usual minor bug fixes.

DoseLab 3.05 released

admin — Tue, 11 Nov 2003 20:17:39 +0000

“Comments” and “Treatment type” fields have been added to the patient information screen. The “Patient ID number” is also able to save non-numeric entries.
You may now read treatment planning system files directly from DoseLab, without having to first convert them to TIF files. During the “open file” dialog, select the extension that represents your file type.
You may now access previous dose comparisons without saving anything other than the MAT file. While opening a computed image, select a *.MAT extention.
There is now a program to delete patient identification information from MAT files – useful for sharing dose comparison information.
The absolute and percent dose difference images use a new colormap that more clearly distinguishes “sort of bad” areas from “really bad” areas.
The FTP program now handles file types other than TIF. Please see the new “Ftp program.txt” preference file for more information.
You may now right click on images and lines and interactively change many of their properties. If an image has contour lines displayed on it, you may have to right click a corner of the image to see this menu.
The single image analysis program now has a recently used files menu.
A new comparison tool, 2D dose/distance histograms, has been added. This brings up an image showing a 2D histogram showing the percent of the comparison that has various values of distance to agreement and percent differences. This tool is useful for determining dose and distance criteria.
The retrospective analysis program has been updated. Histograms are now shown that more clearly represent differences between selected parameters. For example, if you select “dose normalization” as functions of “treatment month” and “treatment site”, you will see a line graph that plots the normalization as a function of time and a histogram that shows the average normalization for each treatment site side-by-side.
All the usual minor bug fixes.

DoseLab 3.04 released

admin — Tue, 22 Jul 2003 20:16:39 +0000

The flatness and symmetry program can now be used in the standalone, MATLAB-independent version of DoseLab. The symmetry calculations now find the maximum difference in symmetry along the width of the profile.
An image smoothing program has been added in the “Image tools” menu of the Single image analysis program, along with the ability to flip and rescale images.
The normalization routine defaults to an autonormalization of all points between 70% and 90% of the maximum computed dose if no points are manually selected.
Error messages are now displayed as popup boxes.
The CMS to TIF option now flips its output vertically to match CMS-displayed images (thanks to alukban via the DoseLab forum).
All figures automatically print out with a landscape orientation. Using the portrait orientation will clip off portions of figures.
The film orientation GUI now can adjust the orientations of both measured and calculated images.
Linear and cubic spline interpolations in the Film to Dose program have been sped up significantly.
The standard deviation divided by the average value is now displayed alongside each calibration box in the Film Calibration program.

DoseLab 3.03 released

admin — Sat, 10 May 2003 20:15:48 +0000

The TPS to TIF conversion program has been updated with “Eclipse DCM2ASCII output” and “General ASCII import” options. A file necessary for reading DCM images is also included that was missing in Version 3.02.
Most display screens have a basic 3D display option now. Click the “Plot 3D” menu and a new figure will open, with the 3D plot. Click the button that looks like a circular arrow to rotate the 3D image. This feature is pretty gimmicky, but really neat to look at.
The flatness and symmetry program (available in MATLAB only) has been slightly updated.
The DoseLab update file is now an installation program that automatically extracts all files to their proper directories after backing up your preference files.

DoseLab 3.02 released

admin — Tue, 29 Apr 2003 20:12:59 +0000

A program to convert data from Pinnacle, Eclipse, Cadplan, CMS, Plato, Helax, and RIT images to TIF files was added. As M.D. Anderson does not own all of these software packages, only examples from ePin (http://www.radonc.uams.edu/epin.htm) were used to test the conversion routines. Please contact me (nathanchildress@gmail.com) with success and/or failure stories.
Reminder: downloading and installing the new doselab_3.02_setup.exe file will overwrite text files saved in the Preferences directory. Please backup any files you have edited prior to installing a newer version on top of an old version.