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

Figure 6:

Oblique axial images in a 72-year-old man scanned with (A, B) energy-integrating detector (EID) CT and (C, D) photon-counting detector (PCD) CT for temporal bone examination. Right temporal bone images acquired with use of EID CT were reconstructed using ultra-high-resolution-regular (Ur) kernels (Ur77 and Ur85) at 0.4-mm section thickness and PCD CT using head-regular (Hr) kernels (Hr76 and Hr84) at 0.2-mm section thickness. PCD CT images show better trabecular detail and delineation of the stapes (arrows) compared with EID CT (images C and D vs A and B), despite use of 30% lower dose (32.6 mGy vs 46.4 mGy) for PCD CT. Display window = 3800 HU; display level = 700 HU. Mean and standard deviation (SD) of CT numbers were measured in the white circular regions of interest.

Oblique axial images in a 72-year-old man scanned with (A, B) energy-integrating detector (EID) CT and (C, D) photon-counting detector (PCD) CT for temporal bone examination. Right temporal bone images acquired with use of EID CT were reconstructed using ultra-high-resolution-regular (Ur) kernels (Ur77 and Ur85) at 0.4-mm section thickness and PCD CT using head-regular (Hr) kernels (Hr76 and Hr84) at 0.2-mm section thickness. PCD CT images show better trabecular detail and delineation of the stapes (arrows) compared with EID CT (images C and D vs A and B), despite use of 30% lower dose (32.6 mGy vs 46.4 mGy) for PCD CT. Display window = 3800 HU; display level = 700 HU. Mean and standard deviation (SD) of CT numbers were measured in the white circular regions of interest.