CT Dose Profile Analyzer Software

The software runs on a PC connected either to a Barracuda or a Piranha. After each scan (exposure), the data is presented instantly. The detector can be used for both point dose and CTDI measurements. Examples are available for measurements on different types of CT systems.The picture below shows a CTDI measured in a head Phantom for a nominal beam width of 20 mm and pitch 0.969.

The dose rate profile has been acquired in the central position in the phantom. The cursors are automatically placed and centered at a distance of 100 mm for the calculation of the CTDI100.

Only one exposure is needed to measure and calculate CTDI100, CTDIw, CTDIvol, DLP, FWHM and Scatter index. To be able to simplify the procedure from normally 5 exposures to only one measurement in the central phantom position (CTDI100,c), a factor k is multiplied with CTDI100,c to get the CTDIw. The k factors are stored in the existing CT Database and have been acquired from a number of different CT systems.

In the software, you are also able to measure the CTDIw with the five exposures at different phantom positions but is seldom needed with the new "Central Point Method".

The software controls the Barracuda or Piranha. All settings for the meters and other pre-defined data are stored in the example files. Once a CT example has been loaded, measurement, storage and analysis of data can be done quickly for different types of CT scanners.Measured data is saved and can be re-opened for later reviewing. Data can also be printed or exported to Microsoft Excel for further analysis.