ARCH

(redirected from double aortic arch)
Also found in: Dictionary, Thesaurus, Medical, Legal, 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 ?
Diagnostic evaluation of incomplete double aortic arch (right dominance), VSD and PFO comorbidities with cardiac MRI.
5,7-9) Neuhauser's anomaly can be confused with the picture of a double aortic arch, an anomalous left innominate subclavian artery, or a pulmonary artery sling.
Patients were assigned into four VR subtypes: (1) Double aortic arch (DAA), (2) pulmonary artery sling (PAS), (3) right aortic arch with a persistent left ligamentum arteriosum (RALL), and (4) others.