Technical support can be contacted via email techsupport@radimage.com or by phone at 719.590.1077 option #1

RIT user manuals and documentation can be found at: c:\RIT\RIT113V4\Documentation.

RIT does not have WebEx for troubleshooting however we now have Logmein Rescue. Logmein gives RIT technical support remote access to our customer sites as long as there is unrestricted internet access.

Most often we can perform technical support over the phone or via email, but Logmein gives us the ability to see customer images, analyses and perform installations or upgrades to our software.

RIT also uses OnConference as a method for software demos and recordings. Contact: Technical Support for more information.

Click here to download the 5.4 Installation Troubleshooting Guide, visit the Installation Section or contact techsupport@radimage.com - 719-590-1077, option 1.

Compatible With These Windows 32-bit and 64-bit Operating Systems

• Windows XP Professional (SP3) (32 bit O/S)
• Windows Vista Business Edition (SP2) (32 bit O/S)
• Windows 7 Professional (32 bit or 64 bit O/S)  

Note: RIT recommends that all current Microsoft updates have been installed.

In order to upgrade to a newer version of the RIT software, it is best to first contact sales@radimage.com to verify your account. They will help you determine the best method for using the latest features.

Crypkey is a process and third party software tool that is used to activate the RIT software license. Site keys are generated using the crypkey license manager. At times, tech support may have to lead you through troubleshooting of your installation if your license file gets corrupted or if the crypkey service stops.

During a new release of the RIT software, it is best to back up your personal images, registration, calibration, template and preference files to a separate directory. RIT uses the c:\RIT\RIT113v4 directory for all software. User files should not be placed in this directory. The RIT preference file can be tailored to point to various file paths. Please contact RIT technical support for more information on how to customize your preferences.

The RIT development team has tested various screen resolutions and we have found that 1280x1024 is the best screen resolution for viewing images in the RIT software. Also, a minimum of 2GB RAM (4GB for Windows 7 and Windows Vista operating systems) is necessary to run the RIT software. If you are working with larger images, 4GB may not be adequate.

This message requires a site key from technical support to activate the software. If this message occurs, please check the following:
1. If this is a new version of RIT software, please email techsupport@radimage.com with the site code screen
2. Someone has pressed the enter key after launching by couble-clicking the RIT icon
3. Users do not have read/write/execute privileges to c:\RIT\rit113v4\ and all folders, subfolders and files
4. Crypserv.exe and rit113v4.exe should be excluded from virus software and startup checking
5. Reboot the computer prior to contacting technical support to see if the service can be restarted
6. Site keys can ONLY be entered locally. Not via remote desktop sessions.

The RIT software is per seat. Additional low cost seats may be purchased for additional flexibility of having two people working simultaneously on two different computers. If a site has one license, they may use the license transfer facility in the user manual in order to transfer the license to a second computer. One person at a time is allowed to log in and utilize the license transfer facility.

Go to file, preferences in the RIT software. Choose the option TPS menu visibility. Deselect any TPS that you do not want to appear.

RIT technical support can use the Logmein Rescue software to gain remote access to your computer. Technical support would need the following:
1. Someone locally at the computer with administrative privileges
2. Unrestricted access to the computer via the internet
3. Ability to go to www.logmein123.com to begin a tech session
4. All customer data (images, cal files, registration files, templates) backed up to a known location

Documentation for Siemens, Varian and Elekta as well as other helpful downloads can be found here.

The OD (optical density) calibration file that plots optical density versus digitizer scanner numbers used to be required as an input to make dose calibration files. All dose calibration files plot digitizer scanner numbers versus dose. Beginning in V5.0 the OD cal file is no longer required when making a dose calibration file. Look at any Dose calibration routine and you will see the word Optional.

All of the dose calibration files convert from scanner numbers to dose (OD is really not involved). The OD cal file is just used as a lookup table in case you want to view the Dose calibration curve displayed as OD versus Dose.The Vidar Film Digitizer and step wedge are also unique and the OD step wedge which was supplied when you purchased your RIT software and Vidar Digitizer should still be used to:

Create a characteristic curve for your digitizer – OD versus A/D values
Provide OD data to plot H&D curves and analyze sensitometry data
Monitor Vidar film digitizer performance 1 to 2 times a year
Contact RIT technical support for more information

Scanner spatial calibration is not a dose conversion, however it is a method to determine the exact pixel size for the Vidar film scanner. Each scanner comes from the factory with a guarantee that the pixel dimensions are within 1% of the nominal pixel size for each resolution. The spatial correction will only need to be done once, unless the scanner is sent in for service.

Flatbed scanner users can now use the flatbed spatial calibration routine, provided they are running version 5.4 or above.

When applying a dose calibration file, if your image has pixels which are outside the dose range of your calibration file, you will see underflow or saturation warnings.

An underflow warning will appear if pixels in the image have lower values than the zero dose point in the dose calibration file. An example of this is when the film has been over-scanned and there are areas in the image where the digitizer has scanned air. When there are underflowed pixels in the image, those pixel values are converted to a dose value of zero.

A saturation warning will appear if pixels in your image have higher values than the highest dose point in the calibration file. This can be caused by writing or fiducial markings on the image but will also occur if there is dose on the image higher than the highest dose point in your calibration file. The saturated pixel values will be converted to the highest dose point in your calibration file.

Template registration is a very fast and accurate method to specify the locations of control points used for registration.

• It works well with all phantoms and with solid water
• Cuts registration time in half
• Sub-Pixel accuracy
• Templates for the MedTec and CIRS phantoms are included with your version of RIT software

Once the user has built their template and applied the template to the plan image during registration, then the points on the film image merely need to be moved to the visual fiducials on the film.

RIT113 V5.4 includes the option of "No Normalization" after the images have been registered. After registration, you may normalize the plan and film each to 100. Essentially, you will be defining 100cGy as 100%. The plots will continue to be labeled as % but the values will be absolute dose. This assumes that your plan dose map is exported in absolute dose. (Pnorm = Praw/Normalization_value)*100

RunQueueA is a scripting software that was developed to automate the IMRT analysis process. The routine is comprised of eight sections that comprise all of the manual steps of the IMRT process. Once these fields are filled in properly, images can be associated with the script.

The script will run in just a few minutes and assist the end user with registration, normalization, regions of interest, and output. A detailed PDF manual can be found at c:\RIT\RIT113V4\Documentation\TechManual

You may also contact technical support to have a web demo of the RunQueueA software.

The RunQueueA software can be used to Composite or add images for EPID, Stereotactic routines and MLC routines. Please contact technical support for information regarding adding images with RunQueueA.

During the RunQueueA or IMRT process a case file can be produced. This has a file extension of .RIC

The case file allows the user to go back to dynamic mode within the IMRT Analysis menu. The IMRT analysis screen will appear and changes can be made to normalization, DTA, gamma values, and layouts.

Please refer to the RunQueueA users manual for more information or contact technical support.

If you are having problems using the RIT113 Software with your Vidar scanner, please contact technical support (719-590-1077, option 1) for initial diagnostics and troubleshooting. RIT no longer coordinates scanner hardware repairs. If your scanner needs to be repaired, please contact Vidar.

RIT does not sell parts for Vidar scanners. Contact Vidar for scanner parts and repairs.

Drivers for the VXR16dp and Advantage scanners can be found at: c:\RIT\RIT113V4\STI_DRV\

The RIT software does not have a direct interface to control flatbed scanners, however TIF, Jpeg, or BMP images that are produced from a flatbed scanner can be imported and analyzed using RIT113 Software. The Graphics File Import option was introduced in RIT version 5.1

Gafchromic film can be used the same as EDR and XV film. If the film is small, it can be put into a clear plastic sleeve and scanned. The film should be scanned in a landscape position to account for the fibers and scatter in this film

The stepwedge that came with the RIT software is scanned and the OD values that are on the white sheet that came with the step wedge, are placed into a table within the RIT software. A detailed procedure can be found in the web downloads section or technical support can walk you through this process.

The RIT software provides several automated multi-leaf collimator quality assurance tests. These QA tests will analyze an exposed film which has been treated with a specific pattern of radiation, depending on the individual test.

The software will analyze this pattern and provide statistics on uniformity and leaf position as well as other statistics. You can then track the performance of the MLC over time to ensure that patient treatments are proceeding as planned without mechanical MLC errors.

The RIT software will trend results from MLC, Starshot, Stereotactic Alignment and various beam tests to a database for further analysis. The user can send all trend records to a single database or to multiple databases. In the image below, TG50 Uniformity for Leaf Pair Junction 3 is being plotted.

1. It might help to use COM1, 2, or 3 since the lower the COM # the higher the priority. Additionally, the handshaking must be set per PTW recommendations. Ensure you check the settings in RIT under the “device setup”
2. Try setting the BAUD rate at 57,600.
If the com port will allow you to select 57600 in the settings then it will support that speed. Go to the Windows Device Manager where you can set this and adjust buffer settings. The PTW .dll files only allows two BAUD rates. Therefore we have the same limitations as the PTW software. Most computers start out at 9600 BAUD, but this is easily changed. The PTW device cannot support data transfer at this low rate. Since we call the PTW device drivers there really should not be any difference between using our software or theirs as far as reliability. If you cannot change the BAUD rate, this is most likely the problem.
3) Are you connecting directly to the computer with a serial cable or are you using a serial to USB cable to get to the computer? If you are using the latter, the cable may be a problem. Not all serial to USB cables perform adequately at this Baud rate.
4) If you collect an image with Verisoft, you can import it under RIT using the FILE/Open Reference Image/PTW 729 Chamber Array. The file has extension *.mcc.

Analyzing a star shot does not require a dose calibration file for versions 5.3 and above.

Once an image is calibrated, the beam shape changes slightly and this affects the results on the star shot. The OD step curve cannot be used. Make a dose calibration file with your Radiochromic film and then apply this to the star pattern.

Green Circle - found edge of the cone, the green cross is the centroid of the area within the cone.

Red contour- this is the thresholded edge of the ball – the red cross is the centroid of the area within the contour.

Blue contour- the radius of the blue circle is the median distance from the centroid to the points on the red contour( the red cross).

In an ideal situation the red contour would be pretty much circular and all the points would be equidistant from the centroid. In that case the blue circle will be very close in position to the red contour and would indicate good results.