狭窄部位および発症機序の同定に頸部血管エコーと4D-CT angiographyが有用であったbow hunter症候群の1例
スポンサーリンク
概要
- 論文の詳細を見る
Bow hunter's syndrome (BHS) is a rare condition resulting from mechanical occlusion or stenosis of the vertebral artery (VA) during head rotation. We report herein a case of BHS in a 54-year-old woman who complained of dizziness, paresthesia, and weakness of the right extremities on rotation of the head by ≥60° to the right. Cervical radiography, magnetic resonance (MR) imaging, MR angiography and carotid Doppler ultrasonography of the neck in the neutral position revealed no abnormality. After rightward rotation of the head by 60°, end-diastolic flow in the left VA disappeared and peak systolic velocity gradually decreased. We diagnosed BHS and treated the patient conservatively. Four-dimensional computed tomography (CT) angiography proved that symptoms were attributable to severe mechanical compression with stenosis of the left VA at the C1-C2 level during rightward rotation of the head. Four-dimensional CT angiography is sufficiently effective for evaluation of hemodynamics and anatomical correlations with surrounding organs. For diagnosis of BHS, intra-arterial digital subtraction angiography (IA-DSA) is undoubtedly the gold standard; however, unlike CT angiography, IA-DSA is an invasive method. To the best of our knowledge, this represents the first report describing the usefulness of four-dimensional CT angiography for diagnosis of this uncommon condition.
- 日本脳神経超音波学会の論文
日本脳神経超音波学会 | 論文
- Serial Ultrasonographic Observations of Cerebral Ventricular Size in Pre-term Infants
- TIA症状を示し微小栓子シグナルが陽性であったプラスミノーゲン異常症の1例
- 超音波照射が脳循環に及ぼす影響
- Ultrasonic Images of Occlusive Carotid Artery Disease Using Combined B-mode and Color Flow Mapping Methods. Detection of Plaque Hemorrhage and its Clinical Importance.:—Detection of Plaque Hemorrhage and its Clinical Importance—
- Preoperative evaluation of extracranial carotid artery stenosis by ultrasonography.