Flow capacity of the network is well approximated by measurement of the 2 or 3 largest connections serving an occluded artery. Patients for whom angina disappeared during 10 years had a greater increase in flow capacity than those for whom it persisted (+331% versus 4% P=0.05).Ĭonclusions- Coronary collateral diameter can be estimated with a precision of 0.10 mm. Certain lipoprotein characteristics tended to predict collateral growth. At pretreatment, collateral diameter averaged 0.50☐.11 mm (SD) (range, 0.3 to 1.4 mm) without tapering or central narrowing. The mean variance, ς, of 9 separate measurements of each collateral was ☐.101 mm. To illustrate the utility of such a method, 52 collateral pathways were measured in 13 patients with 17 occluded arteries before and after 10 years of intensive lipid therapy. For measurement of 0.4- to 1.5-mm-diameter phantoms, mean error ranged from −0.01 to +0.02 mm. Methods and Results- A cineangiographic approach to classify the dominant collaterals and to quantify their lumen caliber and flow capacity was developed and validated. Customer Service and Ordering Informationīackground- Stimulation of coronary collateral growth has potential clinical value, yet techniques to assess such growth in patients are limited.Stroke: Vascular and Interventional Neurology.Journal of the American Heart Association (JAHA).Circ: Cardiovascular Quality & Outcomes.Arteriosclerosis, Thrombosis, and Vascular Biology (ATVB).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |