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Table 3 Types of aortic arch and variation in branching pattern in our study

From: Three steps approach for preoperative evaluation of tetralogy of Fallot patients: role of 128 MDCT

Aortic arch Branching pattern N %
Left-sided AA Normal branching pattern 31 40.4
Bovine arch 16 20.8
Aberrant RSCA 2 2.6
Direct origin of the vertebral artery 3 3.8
Bovine arch with aberrant RSCA 3 3.8
Total 55 71.6
Right-sided AA Mirror imaging branching pattern 12 15.58
Bovine arch 3 3.8
Common origin of both CCAs and separate origin of both SCAs 3 3.8
Aberrant LSCA 3 3.8
Aberrant LSCA, common origin of both CCAs & direct origin of the vertebral artery. 1 1.29
Total 22 28.32
Total 77 100%