Version History

New features

• FractionCHECK Treatment Monitor module added for real time monitoring of treatment log files
• FractionCHECK supports Trajectory Log files from Varian TrueBeam accelerators
• FractionCHECK calculates maximum and average leaf speeds
• FractionCHECK supports DynaLog files that have been renamed by Argus
• Window/level settings can be adjusted via the mouse scrollwheel for all tools. Scrolling up or down decreases or increases the window, and holding Shift while scrolling up or down increases or decreases the level.
• Added geometric distortion calculations to the CT / CBCT module
• The CT / CBCT module now performs automatic fine rotation. Customers that previously adjusted the default ROI coordinates may need to disable automatic rotation or rotate ROIs back to their original locations.
• Trendlines can now be plotted in the database viewer
• The MLC Strip Test module can identify the leaf number of failing leaves
• The MLC Strip Test module computes the interstrip ratio. This value can be used to track changes in interleaf leakage, although it is not a direct measurement of leakage.
• The MLC Strip Test module can automatically crop images
• The MLC Strip Test module will display a plot of all peaks’ FWHM values (accessed via File | View FWHM plots)
• Linear transformations can be applied in Single Image Analysis. These can be applied to EPID images (using slope of -1, intercept of 16,383 or 65,535 for most Varian and Elekta images) to convert raw DICOM values to units that scale better with dose.
• When selecting points on an image (Starshot center, light/rad points, dose normalization points, etc.), a zoomed-in window will be created over the cursor. Type “m” to toggle this window on / off.

Changes

• The MLC Strip Test module averages image rows to be up to 1 mm thick at isocenter. This significantly reduces the “Different number of strips detected” error rate for high resolution EPID images.
• The MLC Strip Test module now uses a modified Lorentzian function by default to fit peaks (see Mamalui-Hunter, Li, Low, Med Phys 35 (6), 2008, pp. 2347-2355). This leads to fewer outliers and better FWHM calculations, but it does not typically change overall accuracy. To use a Gaussian fit instead, uncheck the Perform Lorentzian fit option in the Preferences menu
• Monaco ALL files are now supported
• Added the Catphan 504 as its own phantom
• The interactive gamma / NAT tool displays all images in cm
• When performing MapCHECK and MapCHECK2 dose comparisons, DoseLab will automatically zero out areas of the calculated image that do not have measurement values (ie, the corner areas where there are no diodes).
• The gamma algorithm was updated to behave better in very high gradient areas (>10% / pixel). Previously it could over-estimate gamma in these areas.
• Baseline profiles can now be deleted from the Flatness and Symmetry module
• All field names are edited simultaneously in the Winston-Lutz tool

Bugfixes

• Dose comparisons with an expected rotation of 90° did not always rotate correctly
• Raw ASCII and binary image importing did not always work
• The “rescale to point(s)” option in Single Image Analysis did not work for some images

• FractionCHECK module for per-fraction QA analysis of Varian DynaLog files. All DoseLab licenses allow up to 10 DynaLog files to be loaded at once. Upgrading to the FractionCHECK package allows 50,000 files to be analyzed in batch, as well as 2D fluence and gamma calculations.
• Flatness and symmetry now calculates penumbra, and has selectable flatness and symmetry calculation methods
• Flatness and symmetry now applies a 5×5 Wiener filter by default. This can be disabled in its Preferences menu.
• Support for Sun Nuclear’s MVQA and kVQA image quality phantoms
• Support for iba’s DIGI-13 image quality phantom
• CIRS 610 AAPM CT performance phantom support
• Arbitrary profiles are now supported in the single image profile tool
• Multiple profiles can be displayed in the single image profile tool
• Winston-Lutz thresholds higher than 100% can be used
• Files with numeric extensions are now loaded as DICOM files
• ROI locations can be rotated in the CT Imaging preferences
• The MLC strip test and PDD film modules run automatically
• Gamma calculations are 20x faster
• Loading a 2D image from a 3D DICOM file is now supported. Selecting a 3D DICOM file automatically starts the Slice Selector utility, and is compatible with all single image and dose comparison tools.
• The PDD film module is more accurate in extracting electron PDDs, and it now generates R90, R80, R50, and R20 values

Changes

• Machine QA shortcuts have been added to the Single Image Analysis toolbar
• Icon variations for have been added to correspond with general DoseLab windows, dose comparison tools, machine QA tools, and utilities. This may help users more quickly identify tools in their toolbar when there are multiple DoseLab windows open.
• If using tolerances in the Flatness and Symmetry tool, light/rad offsets are subtracted by the Baseline value. For example, if using Sun Nuclear’s FSQA phantom, you can set a baseline of 6 mm and select the innermost BB (6 mm away from each field edge) in each measurement.
• In Flatness and Symmetry, light/rad offsets and profiles are now magnified to isocenter (100 cm).  All previously saved database results will be automatically magnified to isocenter.
• The starshot algorithm is more tolerant of noisy images.
• The MLC strip test algorithm’s results vary less with threshold changes
• The MLC strip test module saves custom-entered gantry angles for future sessions
• Database viewer displays orange / red text for results that warn / fail
• “Recalculate results” menu items have been added to the CT Imaging QA and MV/kV Imaging QA modules so new preferences can be applied without restarting
• The Catphan’s spatial resolution module is always correctly detected (sometimes it detected a suboptimal adjacent slice)
• The CT QA and CT Viewer modules now always display CTs with a range of -1000 to +1000. Before it defaulted to “minimum” to “maximum”. Right click an image to change this range.
• All modules resize more efficiently for high resolution monitors
• Y-axis limits can be fixed in profile tools
• PDF and XLS exports now suggest a default name based on the date, machine, and test performed
• All dose comparison modules now have a “Cancel comparison” button
• Added a menu in Single Image Analysis to convert intensity film scans to OD

Bugfixes

• Adding apostrophes to notes will be correctly saved to the database
• Negative reference HU values could not be added in CT imaging preferences
• Automatically inverting images in flatness and symmetry did not always work
• MV kV Imaging now has consistent behavior for inverted / non-inverted images
• CT slice width was not always calculated
• MLC strip test saved the number of peaks that failed, not percentage, to the database. All results previously saved to the database will be automatically corrected.
• Spatial resolution calculations in areas where the MTF is not continuously decreasing have been improved
• Flatness and symmetry had minor distance calculation discrepancies for rotated profiles
• The dose comparison automatic ROI selection algorithm has been updated to work with a wider variety of dose distributions
• NAT values were always calculated with a 75% PTV cutoff line in PQI Analytics. Now they are calculated using the preference in “Default comarison values”.

• New main interface window
• Dose comparison interface has been updated and simplified
• Tolerance limit support for TG142 tests
• Internal database to store machine QA results
• Notes can be entered for machine QA tests, and are displayed in PDF reports and in the database
• Machine QA results export to Sun Nuclear’s ATLAS database
• New flatness and symmetry interface
• Base profiles can be loaded into flatness and symmetry
• New depth dose film interface
• DICOM file renaming utility renames DICOM files using DICOM tag information
• RGB TIFs are automatically converted to OD when loaded in Single Image Analysis
• Images can be rescaled by clicking points in Single Image Analysis
• Images can be automatically opened in Single Image Analysis after smoothing
• RGB TIFs can be converted to OD in the 2D Uniformity correction tool without a blank film
• The manual registration tool in dose comparisons now displays profiles
• Slice width can be entered in the CT Imaging interface
• CT Imaging now supports multiple phantoms
• Gantry angles can be entered in the MLC Strip Test interface
• Machine QA PDF reports have been updated and now include tolerance displays
• Winston-Lutz tests can be performed with low-density objects embedded in phantoms
• Winston-Lutz XLS exports also contain raw pixel information
• VMAT / DMLC tests can be measured with film – the images will be automatically aligned
• A 5×5 Wiener filter can now be applied in Single Image Analysis
• SunCOM file support

Changes

• Flatness and symmetry values can now be positive or negative
• File transfers are now at the end of the film scanning, calibration, and dose conversion wizard
• Winston-Lutz normalization regions to 100=98th percentile, rather than max, to deal with image noise
• MLC Strip Test no longer allows images to be processed if strips do not extend from top to bottom
• Manual registration and contour line selection options have moved to the Automation menu

Bugfixes

• DICOM directory files are now ignored by CT Imaging
• Multi-Image Winston-Lutz works with DICOM files with empty SID tags
• CT Imaging detects phantoms in images with >45 cm FOV
• Dose comparisons no longer save an extra .pdf2 file

• Patient name and ID number are automatically imported from DICOM and Pinnacle files
• A blue outline of the detected phantom is displayed in MV and kV Imaging QA
• Slice width can now be automatically calculated in CT and CBCT QA
• The flatness and symmetry image processing routines were enhanced, and light/radiation coincidence now has subpixel accuracy
• Varian’s Las Vegas phantom has been added to the default imaging QA phantoms

Changes

• The Single Image Analysis tool displays more information about each file upon loading (name, ID number, DPI, etc.)
• Wedge calibration images are rotated to match the orientation of the profile
• Landscape pages in PDF reports are now correctly rotated 90° in the PDF file
• The type of starshot test (gantry, collimator, couch) can be entered in the Starshot tool

Bugfixes

• None

• MV, kV, CT, and CBCT Imaging QA routines
• PTW Seven29 TIF files are now inherently supported (with a 1.0 dose conversion)
• The Combine Images tool supports inverting images before combining (useful for EPID images)
• The Combine Images tool has an option to open the new image in the Single Image Analysis tool
• The Combine Images tool saves SID information
• The Single Image Analysis tool imports reticule and MapCHECK coordinates
• The Combine Images tool has an option to open the new image in the Single Image Analysis tool upon saving

Changes

• All result boxes have left-justified text
• The Single Image Analysis tool displays SID information
• Automatic ROI selection is improved for comparisons with normalizations less than 0.3

Bugfixes

• Wedge calibrations with repeated measurement points are supported

• Added support for importing DXF files

Changes

• All references to “SFD” have been changed to “SID”
• The IMAT EPID Analysis Tool has been renamed VMAT EPID Analysis Tool
• The MLC Strip Test utility prompts users to automatically invert images, if needed
• The MLC Strip Test utility now imports SIDs from files

Bugfixes

• The Image Smoothing utility would sometimes not export the most current smoothed image

• Automatic alignments, orientations, and rotations are 10x faster

Bugfixes

• Automatic measurement orientation error caused alignment to stop for measurements and calculations that were close to the same size, with calculations being more rectangular

• Automatic measurement orientation, fine rotation, and ROI selection
• Automation menu
• Batch file processing
• Summary PDF report generation for batch comparisons
• MapCHECK coordinate system support added – (0,0) used as a fiducial point
• EBT2 film blue channel corrections
• File name can be placed on each dose comparison figure

Changes

• DTA calculations are 10x faster
• Gamma calculations are 2x faster
• “Type of dose comparison” has been renamed “Dose comparison preset”
• “Invert” button removed from the Starshot tool
• Wiener filter moved to the Film to Dose tool

Bugfixes

• None