ABSTRACT
The aim of this study seems to do occurs after mechanical heart valve replacement (MHV) using discrete wavelet transform to diagnose paravalvular leakage is to check the mechanical heart valve (PVL). For this purpose, mechanical heart PVL patients with normal MHV 2 and 5 volunteers were recorded sound. The record use mechanical heart valve discrete wavelet transform sounds are decomposed to detail and draw coefficient.
Features common and patients are used for comparison Statically groups of data extracted from the description and approximation coefficients. As a result of comparison, consider that it can be used to detect mechanical heart valve paravalvular leakage characteristics obtained by Daubechies 2 wavelet function. As a result, it is shown that Statically Daubechies 2 wavelet function is suitable for the diagnosis of PVL.
Features common and patients are used for comparison Statically groups of data extracted from the description and approximation coefficients. As a result of comparison, consider that it can be used to detect mechanical heart valve paravalvular leakage characteristics obtained by Daubechies 2 wavelet function. As a result, it is shown that Statically Daubechies 2 wavelet function is suitable for the diagnosis of PVL.
INTRODUCTION
Heart disease, as well as all over the world, a leading cause of death in our country. Heart valve disease is a heart of the most important heart disease. Heart valve disease branch vessel ventricles of the heart ventricles and atria, resulting in deformation of the connecting valve occurs. Cover abduction deformity usually occurs in the lower or back cover format. Often the problem encountered in mitral and aortic valve. The drug is considered to be in the early stages of the disease, advanced valve deformity In case only treatable by surgery. Surgical intervention, either repair or prosthetic heart valve (mechanical or biological) is replaced with a lid.
The formation of the clot and performing with central blood flow, lattice-top lids in 1952 to provide a cage disk to reduce the risk of infection after the first mechanical artificial valve replacement, two-leaf doors in a leaf and finally is. On the materials used in the construction of remedial work continues to cover the same purpose. Flow now been with have not created a mechanical heart valve being associated with may not be the problem all work clots to create a more centralized coverage and infection, the risk and the cover lower turns (Altunkaya eT al, 2013 Altunkaya eT al., 2014; .. Rosenberg, 2006).
It does not cover any installed properly due to mechanical valve, so called erectile dysfunction (dysfunction of / error). Mechanical heart valve in valve leakage between the heart and the support ring (annulus) is sewn set by breaking contact. The mechanical valves work correctly moves the lid is closed upstream of the amount of blood leakage. Lake, covered. Tears to be a connection, properly between the patient's heart with seams, or inflammation results (Wallis, 2010) the resolution of the mechanical heart of the mechanical valve leaks or occurs as a result of valve patients is a relatively rare complication. However, symptoms often have severe anemia as a leak in patients with severe heart failure. Treatment by surgery or repair or replace the cap leaked (Dominica, 2010; Jayawardene ET Allah, the 2008 ;. Sampaio ET al., 2009).
Although the sound from occurring in the literature for the natural heart valve murmurs analysis of numerous studies, the number of studies conducted to understand the leakage occurring in mechanical heart valve is too low. A study of the lack of this component that we encountered, the AVR, the four escapees patients S2 heart power spectral sound of 400 Hz (GDP) Density is a spectral component, normal cover (the Sava and McDonnell called 1996). Similarly, three avr'l had mechanical heart patient is 125 Hz and the area around the leak hills mechanical heart valve compared to the normal audio signal is (Zhang ET al., 2009) formed the signal energy gsy'n there was an entire cardiac cycle core.
This study leakage has occurred in mechanical heart valves and discretization resulting detail and approximation coefficients of the poor and differences kaçaksız mechanical heart valve audio signal to determine the outcome of features derived from the research of audio signals between mechanical heart valves change is separated by discrete wavelet poor.