Case Report
Copyright ©The Author(s) 2023.
World J Clin Cases. Dec 26, 2023; 11(36): 8581-8588
Published online Dec 26, 2023. doi: 10.12998/wjcc.v11.i36.8581
Figure 1
Figure 1 Preoperative carotid ultrasound duplex in case 1. A: Left internal carotid artery stenosis of > 90%; B: Totally occluded right interval carotid artery. ECA: External carotid artery; EDV: End-diastolic velocity; IJV: Internal jugular vein; PSV: Peak systolic velocity; RI: Resistance index; ICA: Internal carotid artery.
Figure 2
Figure 2 Preoperative carotid ultrasound duplex in case 2. A: Totally occluded left internal carotid artery; B: Right interval carotid artery stenosis of > 90%. CCA: Common carotid artery; EDV: End-diastolic velocity; PSV: Peak systolic velocity; RI: Resistance index; ICA: Internal carotid artery.
Figure 3
Figure 3 Preoperative carotid ultrasound duplex showed right internal carotid artery stenosis of > 90% in case 3. EDV: End-diastolic velocity; PSV: Peak systolic velocity; RI: Resistance index; ICA: Internal carotid artery.
Figure 4
Figure 4 Preoperative carotid ultrasound duplex in case 4. Bilateral internal carotid artery stenosis of > 90%. EDV: End-diastolic velocity; PSV: Peak systolic velocity; RI: Resistance index; ICA: Internal carotid artery.