ARCH

(redirected from arch of aorta)
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Related to arch of aorta: descending aorta

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 ?
Compared with the above mentioned literatures, in the present study, from three cadavers, it originated from arch of aorta in between the left common carotid artery and the left subclavian artery and in two cadavers it passed through transverse foramen of C5 vertebra.
In this study, the left common carotid artery, left subclavian artery, and the brachiocephalic trunk were found to originate from the arch of aorta at T3 in 27.
4% of 62 cadavers, and the left vertebral artery arising from the arch of aorta in 1.
So any greater values of the data may indicate the enlargement of arch of aorta and help us to smell the first indication of the above mentioned diseases in Indian population as Western and African studies recorded a bit higher values.
8] The aberrant right subclavian artery arises from arch of aorta distal to the left subclavian artery and most frequently passes behind the oesophagus to the right arm.