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Archives of cardiovascular diseases
Volume 103, n° 11-12
pages 631-633 (novembre 2010)
Doi : 10.1016/j.acvd.2010.03.009
Received : 11 January 2010 ;  accepted : 3 Mars 2010
Magnetic resonance angiography for diagnosis of right aortic arch with vascular ring
IRM pour le diagnostic de l’arc aortic droit avec anneau vasculaire
 

Figure 1




Figure 1 : 

A) Contrast MR angiography of great vessels in coronal plane shows right aortic arch, isolated origin of the right common carotid artery from the aortic arch, isolated origin of the right subclavian artery from the aortic arch, and common origin of the left carotid and left subclavian arteries, like a “brachiocephalic trunk”, arising from the ascending aorta. B) Axial reconstruction of contrast MR angiography shows the origin of the “left” “brachiocephalic trunk” (white arrow) arising from the ascending aorta, and the origin of the left subclavian artery. C) Axial reconstruction of contrast MR angiography shows the union of the descending aorta, through the aberrant subclavian artery, with the left subclavian artery. AAo: ascending aorta; ASA: aberrant subclavian artery; Dao: descending aorta; L: left; LSA: left subclavian artery; T: trachea.


Figure 2




Figure 2 : 

A) T1-weighted magnetic resonance imaging in axial plane shows normal origin of coronary arteries, with coronary ostia (arrows), and the proximal portion of the left anterior descending and circumflex arteries. Descending aorta located on the right side. B) Three-dimensional coronary MR angiography shows normal path of right coronary artery. C) Three-dimensional coronary MR angiography shows normal path of left anterior descending and circumflex arteries. Dao: descending aorta; Cx: circumflex artery; LAD: left anterior descending; RCA: right coronary artery.

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