Title :
An image processing algorithm for the determination of changes in coronary blood flow from digital coronary angiograms
Author :
Cusma, J.T. ; Morris, K.G. ; Chu, A. ; Spero, L.A. ; Bashore, T.M.
Author_Institution :
Div. of Cardiology, Duke Univ. Med. Center, Durham, NC, USA
Abstract :
A method for measuring regional variation in coronary blood flow has been developed using image processing techniques applied to sequences of digital coronary angiograms. A series of digital subtraction angiography images is used as a basic data set to form parametric images of blood volume and of contrast arrival time under varying conditions of blood flow. A model relating the image-derived parameters and physiological flow has been developed and validated in animal experiments. The use of rapid image processing methods permits the formation of flow parameter images in a short time, making the method suitable for online assessment of interventional procedures
Keywords :
cardiology; computerised picture processing; diagnostic radiography; flow measurement; haemodynamics; medical diagnostic computing; physiological models; blood volume; computer methods; contrast arrival time; coronary blood flow; digital coronary angiograms; digital subtraction angiography images; image processing algorithm; interventional procedures; online assessment; parametric images; physiological flow; rapid image processing; regional variation; Angiography; Area measurement; Arteries; Blood flow; Electromagnetic measurements; Fluid flow measurement; Heart; Image processing; Myocardium; Quantum cellular automata;
Conference_Titel :
Computers in Cardiology 1990, Proceedings.
Conference_Location :
Chicago, IL
Print_ISBN :
0-8186-2225-3
DOI :
10.1109/CIC.1990.144179
