Fig. 7: RANDO phantom sagittal image scanned by the ms-CBCT, segmented cortical bone of the mandible and Bland-Altman (BA) plots. | Communications Engineering

Fig. 7: RANDO phantom sagittal image scanned by the ms-CBCT, segmented cortical bone of the mandible and Bland-Altman (BA) plots.

From: Volumetric computed tomography with carbon nanotube X-ray source array for improved image quality and accuracy

Fig. 7

a The sagittal view of the RANDO phantom scanned by the ms-CBCT. b Segmented cortical bones of the mandible. c–e BA plots of the difference between averaged Hounsfield unit (HU) values of the registered regions of interest from the MDCT and the clinical CBCT M, the clinical CBCT C and ms-CBCT, respectively. The median difference, 2.5th and 97.5th percentile were used for non-normally distributed data and calculated based on all 382 data points. Note: The discontinuities shown in Fig. 7a were caused by air gaps and misalignments between different slabs of the RANDO phantom (Image window: [−1000 HU, 3000 HU], ms-CBCT: multisource cone beam computed tomography, MDCT: multidetector computed tomography, CBCT: cone beam computed tomography).

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