Results 201 to 210 of about 658,159 (250)

CORONARY COLLATERAL CIRCULATION

American Journal of Roentgenology, 1973
In the presence of obstructing coronary atherosclerosis, collateral circulation may develop through pre-existing anastomotic channels which are present, though nonfunctional, in normal hearts. These anastomoses connect various branches of the same coronary artery or different coronary arteries.
D C, Levin, M, Kauff, H A, Baltaxe
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Modelling the leptomeningeal collateral circulation during acute ischaemic stroke [PDF]

Medical Engineering and Physics, 2021
A novel model of the leptomeningeal collateral circulation is created by combining data from multiple sources with statistical scaling laws. The extent of the collateral circulation is varied by defining a collateral vessel probability.
Raymond M Padmos, Henk Marquering, Alfons G Hoekstra   +2 more
exaly   +3 more sources

Mandibular collateral circulation

Oral Surgery, Oral Medicine, Oral Pathology, 1971
Abstract An attempt has been made to examine, in a quantitative manner, the respective roles of the contralateral external carotid artery and the ipsilateral internal carotid artery in providing collateral flow to the mandible. Occlusion of the ipsilateral external carotid artery resulted in a 29 per cent decrease in mental arterial pressure, and an ...
K J, Richter, N O, Holte, M W, Meyer, C H, Wilkes   +3 more
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Coronary Collateral Circulation

Chest, 1974
Collateral coronary channels represent obvious compensatory mechanisms for the delivery of nutrients to the myocardium. In spite of extensive basic research, we are still unaware of the factors determining adequate compensatory adjustments. Extensive human pathologic studies have presented a quantitative overall view, but have said little about the ...
R S, Cosby, J A, Giddings, J R, See
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The Coronary Collateral Circulation

Annals of Internal Medicine, 1972
Excerpt The widespread use of coronary arteriography and revascularization surgery has stimulated interest in the coronary collateral circulation.
R H, Helfant, R, Gorlin
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Collateral Arterial Circulation in the Legs

Archives of Surgery, 1960
Introduction Much of our knowledge of collateral circulation has been derived from anatomical studies which have been subjected to pathophysiological interpretation. Arteriography provides a dynamic method of investigating the in vivo collateral patterns in extremities.
J E, CONLEY, W F, KENNEDY
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Development of Coronary Collateral Circulation

Annual Review of Medicine, 1977
Collateral coronary arteries provide alternate routes for delivery of blood to myocar­ dium distal to major coronary-artery obstructions. These channels may be extracar­ diac, endomural, or arterioluminal in origin (I). One additional source of collateral myocardial blood flow is from deliberate attempts to surgically augment blood flow to ischemic ...
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Pathways of Cerebral Collateral Circulation

Radiology, 1960
Despite Considerable anatomical proof to the contrary, the myth of “end-artery” circulation to the brain has been perpetuated in textbooks for years. This interpretation of Cohnheim's original theory concerning infarction and his concept of end-arteries, published in 1872, has led to the erroneous assumption that cerebral collateral circulation is ...
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Collateral Circulation in the Sigmoid Colon

Archives of Surgery, 1955
The blood supply to the sigmoid colon and upper rectum is traditionally related to a "critical point" beyond which ligation will cause necrosis. Most surgeons doubt this theory, but experimental proof is lacking. The arteries to the sigmoid colon and rectum have been reinvestigated with special reference to this question in fresh human autopsy material.
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Cerebral Collateral Circulation in the Era of Reperfusion Therapies for Acute Ischemic Stroke

Stroke, 2022
Simone M Uniken Venema
exaly