Affiliation:
1. From the Cardiovascular Section of the Medical Policlinic and the Institute of Diagnostic Radiology of the University of Zurich, Switzerland.
Abstract
The flow of blood in vitro and in the carotid artery of the dog was calculated by a new cinedensitometric technique and compared with the flow as measured simultaneously by graduated cylinder and stopwatch. Cineangiographic films were projected onto a frosted screen and the light intensity was measured at two neighboring cross sections of the vessel in question. The passage of the contrast medium yielded a pair of indicator-dilution curves of which the difference in mean transit time was calculated. The distance between the cross sections and the diameter of the vessel was measured with the aid of x-ray-dense scales. The flow through the vessel was calculated as the product of cross-sectional area and mean velocity.
The correlation coefficient between the volumetric flow and the flow as found by cinedensitometry was 0.976 in vitro and 0.946 in the intact dog with no systematic deviation from the line of identity. The method enables the blood flow in the intact circulation to be calculated in milliliters per second in any vessel that can be clearly visualized by cineangiocardiography.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Physiology (medical),Cardiology and Cardiovascular Medicine
Reference25 articles.
1. Blood flow in arteries. London;DONALD D. A.;Edward Arnold,1960
2. A Method for Determination of Blood Flow with Use of Roentgen Contrast Medium
3. In Kreislaufmessungen: 5. Freiburger Colloquium, edited bv H. Reindell and H. Klepzig. Miincben;HEINTZEN P.;Banaschewski,1966
4. DETERMINATION OF THE BLOOD FLOW BY A RADIOGRAPHIC TECHNIQUE
5. Kreislaufmessungen mittels Röntgen-Cinedensitometrie
Cited by
102 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献