Elevated end-diastolic ratio of the common carotid artery due to cerebral arteriovenous malformation: Two case reports

Koji Tanaka, Shoji Matsumoto, Takeshi Yamada, Daisuke Kondo, Hideo Chihara, Motohisa Koga, Taketo Hatano, Tomoya Miyagi, Ryo Yamasaki, Jun ichi Kira

Research output: Contribution to journalArticle

Abstract

An elevated end-diastolic (ED) ratio of the common carotid artery (CCA) is an indicator of occlusive lesions of the distal portion of the internal carotid artery. We report 2 cases of cerebral arteriovenous malformation (AVM) showing an elevated ED ratio of the CCA, which decreased after surgery. Case 1 was a 28-year-old man with chronic recurrent headache with aura, and case 2 was a 29-year-old woman with sudden-onset headache and intracerebral hemorrhage without neurologic abnormality. In both cases, digital subtraction angiography revealed a Spetzler-Martin Grade IV AVM, which was mainly fed by branches of the left middle cerebral artery with venous drainage into superficial and deep cerebral veins. Preoperative carotid ultrasonography showed an elevated CCA ED ratio (1.38 in case 1 and 1.47 in case 2; left > right) without atherosclerotic lesions. Patients’ AVMs were successfully resected. In both cases, the ED ratio was decreased after surgery (to 1.05 in case 1 and 1.20 in case 2). A decrease in vascular resistance on 1 side caused by cerebral AVM can result in an increase in the CCA ED ratio comparable to that of carotid axis occlusion.

Original languageEnglish
Pages (from-to)917-920
Number of pages4
JournalRadiology Case Reports
Volume13
Issue number4
DOIs
Publication statusPublished - Aug 2018

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Intracranial Arteriovenous Malformations
Common Carotid Artery
Cerebral Veins
Nervous System Malformations
Headache Disorders
Digital Subtraction Angiography
Arteriovenous Malformations
Cerebral Hemorrhage
Middle Cerebral Artery
Internal Carotid Artery
Vascular Resistance
Headache
Drainage
Epilepsy
Ultrasonography

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

Cite this

Elevated end-diastolic ratio of the common carotid artery due to cerebral arteriovenous malformation : Two case reports. / Tanaka, Koji; Matsumoto, Shoji; Yamada, Takeshi; Kondo, Daisuke; Chihara, Hideo; Koga, Motohisa; Hatano, Taketo; Miyagi, Tomoya; Yamasaki, Ryo; Kira, Jun ichi.

In: Radiology Case Reports, Vol. 13, No. 4, 08.2018, p. 917-920.

Research output: Contribution to journalArticle

Tanaka, Koji ; Matsumoto, Shoji ; Yamada, Takeshi ; Kondo, Daisuke ; Chihara, Hideo ; Koga, Motohisa ; Hatano, Taketo ; Miyagi, Tomoya ; Yamasaki, Ryo ; Kira, Jun ichi. / Elevated end-diastolic ratio of the common carotid artery due to cerebral arteriovenous malformation : Two case reports. In: Radiology Case Reports. 2018 ; Vol. 13, No. 4. pp. 917-920.
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