Spiral / Helical CT Slice Sensitivity Phantom

Measure the sclice sensitivity profile in spiral CT volume scans. Optimize collimation, pitch and image reconstruction for improved slice profile and axial spatial resolution in all types of clinical applications.

Our phantom QRM-SSP is designed to test the slice sensitivity profile (SSP) of a CT scanner’s spiral/helical scan modes. It contains a 25 micron thick metal foil of circular area (diameter 1 mm), embedded in a cylinder of uniform tissue-equivalent plastic. The heavy-metal insert is designed to evaluate all collimations from 0.5 mm to 10 mm with adequate image contrast. We suggest to analyze the maximum CT number of the high-contrast insert for a series of axial images.