S. Satheesh

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Image denoising has become an essential exercise in medical imaging especially the Magnetic Resonance Imaging (MRI). This paper proposes a medical image denoising algorithm using contourlet transform. Numerical results show that the proposed algorithm can obtained higher peak signal to noise ratio (PSNR) than wavelet based denoising algorithms using MR(More)
The antiplatelet activity of clopidogrel is variable among patients suffering from ischemic heart disease. Variation in the cytochrome P450 2C19 (CYP2C19) gene coding for the CYP2C19 enzyme is one of the major determinants of this variable response to clopidogrel. The activity of the CYP2C19 enzyme, which plays a role in the conversion of the prodrug(More)
Clopidogrel is an antiplatelet drug. It is used for the treatment as well as for the prophylaxis of coronary artery disease. Clopidogrel resistance is an emerging problem in clinical settings. The aim of the present study was to evaluate the effect of CYP3A5*3 genetic polymorphism on clopidogrel resistance. One hundred and forty-seven patients from(More)
A functioning vascular access is crucial to the wellbeing of patients on hemodialysis. Thrombosis is the most common complication of arteriovenous fistula (AVF) resulting in late fistula failure; Its treatment is difficult, and results are often suboptimal. Interventional treatment of AVF thrombosis may not be available all the time, and timely application(More)
Bacterial symbionts associated with an octopus were isolated and their intra and extracellular extracts were tested for the antagonistic activities against biofilm-forming bacteria. Among the three antagonistic bacterial symbionts, both intra and extracellular extracts of the bacterium, Pseudomonas putida exhibited strong antibacterial activity against(More)
Personal computers today have 802.11(b/a/g)-based wireless connectivity. If it were possible to wirelessly connect laptops to a projector, multiple persons can connect and present content on their laptops on the projector. This typically requires another personal computer at the projector end that is wirelessly connected to the laptop that receives,(More)
Recently, adaptive subband coders based on wavelet packet decomposition and psychoacoustic modelling have been proposed to achieve transparent quality compression of audio signals [1],[2]. While these coders perform well for stationary signals , there is no special mechanism in the coder to prevent the pre-echo artifact when transient signals are encoded.(More)
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