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DOI:10.2214/AJR.05.0452
AJR 2006; 187:779-787
© American Roentgen Ray Society

Clinical Observations

Follow-Up of Extracranial Vertebral Artery Stents with Doppler Sonography

Fatih Kantarci1, Ismail Mihmanli1, Mehmet Sait Albayram2, Hakan Barutca1, Fatih Gulsen1, Naci Kocer2 and Civan Islak2

1 Department of Radiology, Division of Ultrasonography, Cerrahpasa Medical Faculty, Istanbul University, Kocamustafapasa 34300, Istanbul, Turkey.
2 Department of Radiology, Division of Neuroradiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey.

OBJECTIVE. The objective of our study was to determine the Doppler sonography findings suggestive of restenosis in the follow-up of patients treated by stent placement in the extracranial vertebral artery.

CONCLUSION. Follow-up of vertebral artery stents with Doppler sonography may be performed by direct insonation of the stent or by indirect measurements from the V2 segment (the part of the vertebral artery that courses within the intervertebral foramina). The V2 segment Doppler sonography measurements may guide future examinations and provide essential information regarding the proximally deployed stent.

Keywords: angioplasty • arteriosclerosis • Doppler sonography • hemodynamics • stenosis • stents • vascular imaging • vertebral artery


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