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Insights into Imaging
Fig. 4 | Insights into Imaging

Fig. 4

From: Deep learning image reconstruction algorithm for carotid dual-energy computed tomography angiography: evaluation of image quality and diagnostic performance

Fig. 4

Examples of overestimated intracranial arterial stenosis on DLIR images. ASIR-V (a, e), DLIR-L (b, f), DLIR-M (c, g), DLIR-H (d–h) of a 69-year-old woman (a–d) and a 71-year-old male (e–h) with cerebral atherosclerosis are shown. 80% ASIR-V and DLIR images show similar depiction of the proximal and distal cerebral arteries. Moderate-to-severe focal stenosis at segment A3 of right anterior cerebral artery and segment P3 of right posterior cerebral artery are noticed (black arrow). The residual lumens at the stenosis are clearly visible in the ASIR-V images, while in the high-level DLIR image, residual lumens are vaguely visible

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