MDCT detection of left subclavian artery obstruction accompanied by anomalous origin of the left vertebral artery
| Autor: | Atsushi Hirayama, Kazuhisa Kodama, Sei Komatsu, Motoichiro Takahashi, Tomokazu Murakawa, Toshiaki Higashide, Yosuke Omori, Yasuo Fujisawa, Yuichi Sato |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Male
Aortic arch Left vertebral artery medicine.diagnostic_test business.industry Subclavian Artery Arterial Occlusive Diseases Digital subtraction angiography Middle Aged Contrast medium Blood pressure medicine.artery Angiography cardiovascular system medicine Humans cardiovascular diseases Common carotid artery Tomography X-Ray Computed Cardiology and Cardiovascular Medicine business Nuclear medicine Vertebral Artery Subclavian artery |
| Zdroj: | International Journal of Cardiology. 115:244-245 |
| ISSN: | 0167-5273 |
| DOI: | 10.1016/j.ijcard.2006.01.055 |
| Popis: | A 63-year-old man was referred to our hospital complaining worsening of severe left shoulder stiffness for one year. Systolic pressure of the left upper arm was 50 mm Hg lower than that of the right arm (75 mm Hg). He did not have episodes of dizziness or syncope upon left arm exercise. Multi-detector computed tomography (MDCT) angiography was performed using a LightSpeed 16 (GE Systems, USA) with the slice thickness of 0.625 mm. 80 ml of the contrast medium (Optiray 320; Tyco Healthcare, Japan) was used. MDCT revealed complete obstruction of the left subclavian artery (Fig 1a). The length of the obstruction was 30 mm. MDCT also revealed an unusual aortic arch variation (Fig 1a). The left vertebral artery originated directly from the arch between the left common carotid artery and the left subclavian artery. A collateral vessel to the distal site of the obstruction was also demonstrated (Fig 1b, large arrow). The left vertebral artery could not be identified in its usual location (Fig. 1b, small arrow). Selective digital subtraction angiography of the left subclavian artery demonstrated complete obstruction (length 28 mm) of the left subclavian artery. A collateral vessel was also demonstrated (Fig 2, arrow). The |
| Databáze: | OpenAIRE |
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