Learning objectives
Describes the normal embryologic development of the aortic arch
Recognizes anatomic variants and anomalies of the aortic arch
Identifies common causes of vascular rings
Background
Congenital variants and anomalies of the aortic arch are important to recognize as they may be associated with vascular rings,
congenital heart disease (CHD),
and chromosomal abnormalities,
and can have important implications for prognosis and management,
including surgical and percutaneous interventions.
Aortic arch anomalies can occur in isolation but may also be associated with structuralCHD.
However,
other arch variants,
such as right aortic arch with aberrant left subclavian artery,
are usually associated with normal intracardiac anatomy.
Detailed evaluation of aortic arch anatomy is important for...
Findings and procedure details
IMAGING
Echocardiography,
cardiac magnetic resonanceimaging,
and computed tomographic angiography are important imaging modalities used to identify and diagnose aortic arch variants and anomalies.
These noninvasive imaging modalities have largely replaced catheter angiography and barium esophagrams in the diagnosis of suspected vascular rings.
In the pediatric setting in particular,
transthoracic echocardiography is often the initial imaging modality used.
Ultrasonography poses minimal risk to the patient,
as it is noninvasive,
does not require use of intravenous contrast medium,
does not expose the patient to radiation,
and is...
Conclusion
Congenital anomalies of the aortic arch,
which take many forms,
result from aberrant development of one or more components of the embryonic pharyngeal arch system.
Familiarity with the spectrum and imaging appearance of aortic arch variants,
anomalies,
and malformations is essential for accurate diagnosis and classification and to guide management.
Noninvasive imaging with CT and MR angiography allows for complete evaluation of the aortic arch and branch vessels in relation to surrounding structures,
including the airways and esophagus.
Personal information
Dr.M.Farooque,
M.B.B.S
Final year postgraduste
Dept of Radiology
Chettinad Hospital & Research Institute
Chennai
Tamilnadu-603103
India
Dr.B.Ashraf Ahmed MD.RD
Associate Professor
Dept of Radiology,
Melmaruvathur Adhiparasakthi Institute of Medical Sciences and Research
Melmaruvathur
Kancheepuram District
Tamilnadu -603319
India
Dr.F.Abubacker Sulaiman MD.RD,EDiR
Professor & Head of Department
Dept of Radiology
Melmaruvathur Adhiparasakthi Institute of Medical Sciences and Research
Melmaruvathur
Kancheepuram District
Tamilnadu -603319
India
Dr.K.Saravannan MD.RD
Senior Resident
Dept of Radiology,
Melmaruvathur Adhiparasakthi Institute of Medical Sciences and Research
Melmaruvathur
Kancheepuram District
Tamilnadu -603319
India
Dr.J.Viyango...
References
1) Hanneman Kate,Newman Beverley,
Chan Frandiks.
Congenital Variants and Anomalies of the Aortic Arch.
Radiographics:Vol.
37,
No.
1
2) Glew D,Hartnell GG.The right aortic arch revisited.Clin Radiol1991;43(5):305–307.Crossref,Medline,Google Scholar
3) Berg C,Bender F,Soukup Met al.Right aortic arch detected in fetal life.Ultrasound Obstet Gynecol2006;28(7):882–889.Crossref,Medline,Google Schola
4) Miranda JO,Callaghan N,Miller O,Simpson J,Sharland G.Right aortic arch diagnosed antenatally: associations and outcome in 98 fetuses.Heart2014;100(1):54–59.Crossref,Medline,Google Scholar
5) Momma K,Matsuoka R,Takao A.Aortic arch anomalies associated with chromosome 22q11 deletion (CATCH 22).Pediatr Cardiol1999;20(2):97–102.Crossref,Medline,Google Scholar
6) Goldmuntz E,Clark BJ,Mitchell LEet al.Frequency of 22q11...