Ultrasound diagnosis of right common carotid artery absence and right internal carotid artery stenosis: one case report

doi:10.3969/j.issn.1672-6731.2025.07.015

Abstract

Key words: Carotid artery, common, Congenital abnormalities, Carotid stenosis, Ultrasonography, Case reports

Yi ZHANG, Qian YANG, De-lin YU. Ultrasound diagnosis of right common carotid artery absence and right internal carotid artery stenosis: one case report[J]. Chinese Journal of Contemporary Neurology and Neurosurgery, 2025, 25(7): 667-671.

张奕, 杨倩, 于德林. 右颈总动脉缺如伴右颈内动脉重度狭窄超声诊断一例[J]. 中国现代神经疾病杂志, 2025, 25(7): 667-671.

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URL: https://journal11.magtechjournal.com/cjcnn/EN/10.3969/j.issn.1672-6731.2025.07.015

https://journal11.magtechjournal.com/cjcnn/EN/Y2025/V25/I7/667

Figures/Tables 6

Figure 1 Head and cervical CTA findings at outpatient Right ICA originated from the unnamed artery (arrow indicates, Panel 1a). Proximal segment of right ICA stenosis (arrow indicates, Panel 1b).

Figure 2 Carotid artery CDUS findings Color image of right ICA stenosis (arrow indicates, Panel 2a). Blood flow velocity spectrum of right ICA stenosis site (Panel 2b). Blood flow velocity spectrum of the distal segment of right ICA stenosis (Panel 2c). Color image of the initial segment of right ICA and ECA showed right ICA (thick arrow indicates) and ECA (thin arrow indicates) originated from the unnamed artery (Panel 2d). Color image of the proximal segment of right ICA (thick arrow indicates) and ECA (thin arrow indicates, Panel 2e).

Figure 3 TCD findings Blood flow spectrum of the siphon segment of left ICA (Panel 3a). Blood flow spectrum of left MCA (Panel 3b). A low - speed and low - resistance blood flow spectrum of right MCA (Panel 3c).

Figure 4 Head and cervical CTA 3D reconstruction findings Τhe bovine arch (arrow indicates, Panel 4a). Right CCA absence and right ICA stenosis (arrow indicates, Panel 4b).

Figure 5 Intraoperative DSA findings The length of the narrowed segment of right ICA was 13.30 mm (Panel 5a). Smooth blood flow immediately after right ICA stenting implantation surgery (Panel 5b).

Figure 6 Postoperative carotid artery CDUS findings The right ICA stent (arrow indicates, Panel 6a). Blood flow within the right ICA stent, with a PSV of 47 cm/s (Panel 6b). Blood flow in the distal right ICA, with a PSV of 55 cm/s (Panel 6c). Blood flow in the distal left ICA, with a PSV of 71 cm/s (Panel 6d). 6a 6b 6c 6d

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