Aortic arch anomalies CT: Difference between revisions
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{{Aortic arch anomalies}} | {{Aortic arch anomalies}} | ||
{{CMG}} | {{CMG}} | ||
'''Associate Editor-In-Chief:''' {{CZ}} [[User:KeriShafer|Keri Shafer, M.D.]] [mailto:kshafer@bidmc.harvard.edu] [[Priyamvada Singh|Priyamvada Singh, MBBS]] [[mailto: | '''Associate Editor-In-Chief:''' {{CZ}} [[User:KeriShafer|Keri Shafer, M.D.]] [mailto:kshafer@bidmc.harvard.edu] [[Priyamvada Singh|Priyamvada Singh, MBBS]] [[mailto:psingh13579@gmail.com]] | ||
'''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [[mailto:kfeeney@ | '''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [[mailto:kfeeney@elon.edu]] | ||
==Overview== | |||
==CT== | ==CT== | ||
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===Imaging Findings=== | ===Imaging Findings=== | ||
'''Classification:''' [[Aortic arch anomalies classification double aortic arch|Double aortic arch]] | '''Classification:''' [[Aortic arch anomalies classification double aortic arch|Double aortic arch]] | ||
'''Case:''' A chest CT was performed in the arterial phase. A diagram of the findings is seen. The left common carotid artery arose from the ascending aorta. The aortic arch was to the right of the trachea, and passed posterior to it. The right common carotid and right subclavian arteries arose from the arch in that order. From the posterior arch, the left subclavian artery arose from a large diverticulum (this corresponds to the left “aortic knuckle” seen on the PA film). The descending aorta then crossed to the right again before passing through the diaphragm in the midline. This appearance may be due to right aortic arch with aberrant left subclavian artery, or to double aortic arch with atresia of the left arch, subtype 3. This case is more likely to be the former, as there was no narrowing of the trachea, and subtype 3 double aortic arch is rare. The anatomic difference between these two anomalies is persistence or not of an atretic segment of the left arch. | '''Case:''' A chest CT was performed in the arterial phase. A diagram of the findings is seen. The left common carotid artery arose from the ascending aorta. The aortic arch was to the right of the trachea, and passed posterior to it. The right common carotid and right subclavian arteries arose from the arch in that order. From the posterior arch, the left subclavian artery arose from a large diverticulum (this corresponds to the left “aortic knuckle” seen on the PA film). The descending aorta then crossed to the right again before passing through the diaphragm in the midline. This appearance may be due to right aortic arch with aberrant left subclavian artery, or to double aortic arch with atresia of the left arch, subtype 3. This case is more likely to be the former, as there was no narrowing of the trachea, and subtype 3 double aortic arch is rare. The anatomic difference between these two anomalies is persistence or not of an atretic segment of the left arch. | ||
<gallery> | <gallery> | ||
Image:Double_aortic_arch.jpg| | Image:Double_aortic_arch.jpg| | ||
</gallery> | </gallery> | ||
'''Classification:''' [[Aortic arch anomalies classification bovine arch|Bovine arch]] | '''Classification:''' [[Aortic arch anomalies classification bovine arch|Bovine arch]] | ||
'''Case:''' A multi-slice CT was performed to deteremine the relationship of the aortic arches. | '''Case:''' A multi-slice CT was performed to deteremine the relationship of the aortic arches. | ||
<gallery> | <gallery> | ||
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Image:Bovine-arch-005.jpg|MSCT: Bovine arch | Image:Bovine-arch-005.jpg|MSCT: Bovine arch | ||
([http://www.radswiki.net Images courtesy of RadsWiki]) | ([http://www.radswiki.net Images courtesy of RadsWiki]) | ||
Image:Right-aortic-arch-002.jpg|Right Aortic Arch | Image:Right-aortic-arch-002.jpg|Right Aortic Arch | ||
Image:Right-aortic-arch-003.jpg|Right Aortic Arch | Image:Right-aortic-arch-003.jpg|Right Aortic Arch | ||
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==References== | ==References== | ||
{{reflist}} | {{reflist|2}} | ||
{{WH}} | |||
{{WS}} | |||
[[CME Category::Cardiology]] | |||
[[Category:Cardiovascular system]] | [[Category:Cardiovascular system]] | ||
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[[Category:Pediatrics]] | [[Category:Pediatrics]] | ||
[[Category:Pulmonology]] | [[Category:Pulmonology]] | ||
Latest revision as of 21:57, 14 March 2016
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Aortic arch anomalies Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Aortic arch anomalies CT On the Web |
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American Roentgen Ray Society Images of Aortic arch anomalies CT |
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Risk calculators and risk factors for Aortic arch anomalies CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2] Keri Shafer, M.D. [3] Priyamvada Singh, MBBS [[4]]
Assistant Editor-In-Chief: Kristin Feeney, B.S. [[5]]
Overview
CT
Computed tomography can be used as a diagnostic tool to show the relationship of the aortic arches to the trachea and esophagus and also the degree of tracheal narrowing. Bronchoscopy can be useful in internally assessing the degree of tracheomalacia.
Imaging Findings
Classification: Double aortic arch
Case: A chest CT was performed in the arterial phase. A diagram of the findings is seen. The left common carotid artery arose from the ascending aorta. The aortic arch was to the right of the trachea, and passed posterior to it. The right common carotid and right subclavian arteries arose from the arch in that order. From the posterior arch, the left subclavian artery arose from a large diverticulum (this corresponds to the left “aortic knuckle” seen on the PA film). The descending aorta then crossed to the right again before passing through the diaphragm in the midline. This appearance may be due to right aortic arch with aberrant left subclavian artery, or to double aortic arch with atresia of the left arch, subtype 3. This case is more likely to be the former, as there was no narrowing of the trachea, and subtype 3 double aortic arch is rare. The anatomic difference between these two anomalies is persistence or not of an atretic segment of the left arch.
Classification: Bovine arch
Case: A multi-slice CT was performed to deteremine the relationship of the aortic arches.
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Bovine arch -
MSCT: Bovine arch -
MSCT: Bovine arch -
MSCT: Bovine arch -
MSCT: Bovine arch -
MSCT: Bovine arch -
Right Aortic Arch -
Right Aortic Arch
