ARCH

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Related to right aortic arch: double aortic arch

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 ?
Right aortic arch and major aorto-pulmonary collaterals were the most common associated cardiac abnormalities in TOF patients.
Tracheal signs and associated vascular anomalies in dogs with persistent right aortic arch.
Right aortic arch with aberrant left innomi-nate artery.
Occurrence of right aortic arch in various types of congenital heart disease.
Common cardiac defects in VCFS include ventricular septal defects, tetralogy of fallot and right aortic arch defects (15).