Conference Proceeding

The reduction of spontaneous left atrial echographic contrast afterpercutaneous mitral valvuloplasty: a transesophageal echocardiographystudy

Gen. Hospital of Bolzano;
10/1991; DOI:10.1109/CIC.1991.169102 ISBN: 0-8186-2485-X pp.289-291 In proceeding of: Computers in Cardiology 1991, Proceedings.
Source: IEEE Xplore

ABSTRACT The effect of transmitral flow modification after percutaneous mitral valvuloplasty (PMV) on spontaneous echographic contrast (SEC) was evaluated. Ten female patients affected by mitral stenosis have been studied consecutively. All were selected on the basis of clinical and echocardiographical criteria to undergo PMV. The echocardiographic examination was performed 24 hours before the PMV, 24 to 48 hours after, and again three months after the PMV. The digital images were processed with digital filtering software written in C-language for an IBM-compatible personal computer using a 25 MHz 80386 microprocessor. The images were convolved with a 3×3 kernel representing digital low-pass filtering. In all the patients a significant diminution of the density of spontaneous echos in the left atrium was shown (m/pre-PMV=32.88+14.75, m/post-PMV=7.88+7.68, with p <0.001)

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Keywords

clinical
 
consecutively
 
female patients
 
IBM-compatible personal computer
 
left atrium
 
mitral stenosis
 
patients
 
percutaneous mitral valvuloplasty
 
PMV
 
significant diminution
 
spontaneous echographic contrast
 
spontaneous echos
 
transmitral flow modification