ARCH

(redirected from double aortic arch)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
Related to double aortic arch: vascular ring

ARCH

Autoregressive Conditional Heteroskedasticity

A statistical measure of the average error between a best fit line and actual data that uses past data to predict future performance. General Autoaggressive Conditional Heteroskedasticity is the most common way of doing this. See also: Fractal Distribution.
References in periodicals archive ?
While the computed tomography angiogram confirmed double aortic arch, the child had tracheal compression due to the DAA leading to the recurrent wheezing and repeated respiratory infection.
Double aortic arch is a rare congenital vascular malformation.
Incomplete double aortic arch with atresia of the distal left arch: Distinctive imaging appearance.
Diagnostic evaluation of incomplete double aortic arch (right dominance), VSD and PFO comorbidities with cardiac MRI.
Double aortic arches account for roughly 50% of symptomatic vascular rings.