Explain how the following factors affect the blood velocity and volume flow rate as well as potential risks for stroke: i. the pulsatile nature of blood flow, ii. elasticity of the wall of the blood vessels, and iii. gradual narrowing and curvature of blood vessels.
Explain how the following factors affect the blood velocity and volume flow rate as well as potential risks for stroke: i. the pulsatile nature of blood flow, ii. elasticity of the wall of the blood vessels, and iii. gradual narrowing and curvature of blood vessels.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Explain how the following factors affect the blood velocity and volume flow rate as well as potential risks for stroke: i. the pulsatile nature of blood flow, ii. elasticity of the wall of the blood vessels, and iii. gradual narrowing and curvature of blood vessels.
Transcribed Image Text:1. X-ray Angiography and Blood Flow Measurement
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An important step in the diagnosis and treatment of vessel disease is the qualitative
assessment and quantitative measurement of blood flow through the diseased vessels and
surrounding areas. In X-ray angiography, standard x-ray images are acquired of the region of
interest following injection of an opaque contrast agent, which enters the bloodstream and permits
an accurate visual depiction of blood flow through vessels. Using X-ray angiography, blood flow
can be approximately measured by employing kinematics to describe the movement of contrast
dye along a linear portion of the vessel.
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