Usefulness of Doppler Sonography of Ophthalmic Artery for Occlusive Internal Carotid Artery Diseases

概要

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The usefulness of Doppler sonography (DS) of the ophthalmic artery (OA) for the investigation of occlusive internal carotid artery (ICA) lesions was discussed and analyzed. [Materials and Methods] Forty-three cases having abnormal findings of the DS of OA were examined by cerebral angiography. Forty-one of the total cases had an occlusive ICA lesion on the angiogram. [Results] 1) The abnormal DS findings were divided into two patterns, consisting of an arch stenosis pattern (SP) in 20 cases and a retrograde pattern (RP) in 23 cases, SP showed ICA stenosis or occlusion with collateral flow through the intracranial vessels. RP showed occlusive ICA lesions with collateral flow through the extracranial vessels. 2) The OA on the angiogram was filled retrogradely in 95% of the RP cases, and was filled normogradely in 55.6% of the SP cases. 3) Twenty-nine cases who received on STA-MCA anastomosis had postoperative improvement in retrograde flow and/or normograde flow and even greater improvement could be seen in the follow-up stage.<BR>[Conclusion] DS of the ophthalmic artery is a non-invasive examination and showed good correlation with the angiographical findings of ICA and OA. SAT-MCA anastomosis brought about improvement in retrograde ophthalmic artery flow.
日本脳神経超音波学会の論文