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. 2021 Dec 14;303(1):130–138. doi: 10.1148/radiol.212579

Figure 1:

Graphs show modulation transfer functions (MTFs) (left) and section sensitivity profiles (right) for the standard (STD) and high-spatial-resolution (HR) collimations of the photon-counting detector CT system. Limiting in-plane spatial resolution of 125 µm and full width at half maximum (FWHM) value of the section sensitivity profile of 0.34 mm were achieved using HR collimation. Br = body-regular reconstruction kernel, Hr = head-regular reconstruction kernel.

Graphs show modulation transfer functions (MTFs) (left) and section sensitivity profiles (right) for the standard (STD) and high-spatial-resolution (HR) collimations of the photon-counting detector CT system. Limiting in-plane spatial resolution of 125 µm and full width at half maximum (FWHM) value of the section sensitivity profile of 0.34 mm were achieved using HR collimation. Br = body-regular reconstruction kernel, Hr = head-regular reconstruction kernel.