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Figure 2b. Section collimation in multi–detector row CT. (a) Narrow collimation is coordinated with the data acquisition system (DAS) to allow use of the small central detector elements (DE) individually, resulting in 16 sections with a thickness of 0.6 mm each. This setting allows data reconstruction down to a section thickness of 0.6 mm. (b) Wide collimation is coordinated with the data acquisition system (DAS) to pair the 16 small central detector elements (DE) and use the eight peripheral elements individually, resulting in 16 sections with a thickness of 1.2 mm each. This setting allows data reconstruction down to a section thickness of 1.2 mm.
