the blood pressure in the distal circulation is measured while the artery above an aneurysm is compressed. Collateral circulation is considered good if blood pressure is fairly high.
Ko·rot·koff test(kō-rot'kof test)
A test of collateral circulation; while the artery proximal to an aneurysm is compressed, the blood pressure in the distal circulation is estimated; if it is fairly high, the collateral circulation is good.
Korotkoff,Nikolai S., Russian physician, 1874-1920.
Korotkoff sounds - sounds heard over an artery when pressure over it is reduced below systolic arterial pressure, as when blood pressure is determined by the auscultatory method.
Korotkoff test - a test of collateral circulation.