Color Doppler ultrasound manifestations of internal jugular vein stenosis caused by atlas compression
Objective To explore the color Doppler ultrasound manifestations of internal jugular vein stenosis caused by atlas compression in patients with cranial tinnitus and/or tinnitus.Methods A retrospective analysis was performed on the clinical data of 25 patients with tinnitus and internal jugular vein stenosis caused by compression of the transverse process of the atlas who underwent internal jugular vein color Doppler ultrasound in the Ultrasonography Department of Beijing Shijitan Hospital,Capital Medical University from September 2020 to March 2023.All 25 patients were confirmed to have unilateral compression of the internal jugular vein by the transverse process of the atlas through head and neck CT venography(CTV)and surgery.The diameter,cross section area,the maximum velocity,the maximum pressure gradient and mean flow volume of three segments of the bilateral internal jugular vein were compared and analyzed.Results Compared with the healthy side,the diameter and cross section area of J1,J2,J3 segment of the internal jugular vein on the affected side were smaller,and the differences were statistically significant(all P＜0.05).There was no significant difference in the maximum velocity or maximum pressure gradient of J1 segment between the affected and healthy sides(both P＞0.05).Compared with the healthy side,the maximum velocity and maximum pressure gradient of J2 and J3 segments of the internal jugular vein on the affected side were smaller,and mean flow volume of each segment was smaller,and the differences were statistically significant(all P＜0.05).Conclusions The internal jugular vein stenosis caused by atlas compression show that the diameter,cross section area and mean flow volume of the whole segments of the affected internal jugular vein are decreased on color Doppler ultrasound.The maximum velocity and the maximum pressure gradient of J2 and J3 segments are decreased.Color Doppler ultrasound can indirectly reflect the patency of the internal jugular vein reflux.
VeinsCervical atlasUltrasonographyHemodynamicsCranial tinnitusExogenous stenosis of the internal jugular vein
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