JUM Track the topics, authors and articles important to you
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Yasaka, M.
Right arrow Articles by Okada, Y.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Yasaka, M.
Right arrow Articles by Okada, Y.
© 2006 by the American Institute of Ultrasound in Medicine
J Ultrasound Med 25:1547-1552 • 0278-4297

Bottle Neck Sign of the Proximal Portion of the Internal Carotid Artery in Moyamoya Disease

Masahiro Yasaka, MD, Toshiyasu Ogata, MD, Kotaro Yasumori, MD, Tooru Inoue, MD and Yasushi Okada, MD

Departments of Cerebrovascular Disease (M.Y., T.O., Y.O.), Radiology (K.Y.), and Neurosurgery (T.I.), Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyusyu Medical Center, Fukuoka, Japan. Revision requested June 26, 2006. Revised manuscript accepted for publication July 17, 2006.

Address correspondence to Masahiro Yasaka, MD, Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyusyu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka 810-8563, Japan. E-mail: yasaka{at}qmed.hosp.go.jp

Objective. We investigated morphologic features of the extracranial internal carotid artery (ICA) by carotid ultrasonography in patients with moyamoya disease. Methods. We performed conventional carotid ultrasonography and transoral carotid ultrasonography on 19 ICAs in 10 patients with moyamoya disease (moyamoya group) and 28 ICAs in 14 control subjects (control group). We evaluated whether the diameter was greatly reduced at the proximal portion of the ICA above the bulbus, like a champagne bottle neck, to be less than half that of the common carotid artery and whether the diameter of the ICA was smaller than that of the external carotid artery (diameter reversal) on conventional carotid ultrasonography. We then measured the internal diameter of the extracranial distal ICA by transoral carotid ultrasonography. We compared the incidence of a "bottle neck" appearance, diameter reversal, and the ICA diameter between the 2 groups. Results. The bottle neck and diameter reversal were shown in 14 (74%) and 16 (84%) of the 19 ICAs in the moyamoya group, respectively ({chi}2 test, P < .0001). However, neither of them was shown in the control group. The diameter of the distal ICA in the moyamoya group was significantly smaller than that in the control group (mean ± SD, 2.4 ± 0.60 versus 4.1 ± 0.52 mm; unpaired t test, P < .0001). Conclusions. These results suggest that rapid internal diameter reduction at the proximal portion of the ICA, characterized by a bottle neck appearance or diameter reversal, is an important morphologic feature of moyamoya disease.

Key Words: internal carotid artery • moyamoya disease • ultrasonography

Abbreviations: CCA, common carotid artery • ECA, external carotid artery • ICA, internal carotid artery • TIA, transient ischemic attack • TOCU, transoral carotid ultrasonography

HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2006 by the American Institute of Ultrasound in Medicine.