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This paper presents a fully automatic method to segment the right ventricle (RV) from short-axis cardiac MRI. A combination of a novel window-constrained accumulator thresholding technique, binary difference of Gaussian (DoG) filters, optimal thresholding, and morphology are utilized to drive the segmentation. A priori segmentation window constraints are(More)
Advances in technology for miniature electronic military equipment and systems have led to the emergence of unmanned aerial vehicles (UAVs) as the new weapons of war and tools used in various other areas. UAVs can easily be controlled from a remote location. They are being used for critical operations, including offensive, reconnaissance, surveillance and(More)
BACKGROUND Dominant frequencies (DFs) of activation are higher in the atria of patients with persistent than paroxysmal atrial fibrillation (AF), and left atrial (LA)-to-right atrial (RA) DF gradients have been identified in both. However, whether such gradients are maintained as long-term persistent AF is established remains unexplored. We aimed at(More)
Myocardial fibrosis detected via delayed-enhanced magnetic resonance imaging (MRI) has been shown to be a strong indicator for ventricular tachycardia (VT) inducibility. However, little is known regarding how inducibility is affected by the details of the fibrosis extent, morphology, and border zone configuration. The objective of this article is to(More)
Two authors' names were omitted from the original article, Natalia Trayanova and Michael Miller. The affiliations of Drs. Trayanova and Miller are listed in the amended author list above. The labs of Drs. Trayanova and Miller jointly developed the method used in the original paper to estimate the fiber orientations in each patient's heart. 1 Some fiber(More)
Internet traffic as well as network attacks have been growing rapidly that necessitates efficient network traffic monitoring. Many efforts have been put to address this issue; however, rapid monitoring applications are needed. We propose a distributed architecture based intrusion detection system (IDS) that is capable of detecting the anomalies in the(More)
We present a comprehensive validation analysis to assess the geometric impact of using coarsely-sliced short-axis images to reconstruct patient-specific cardiac geometry. The methods utilize high-resolution diffusion tensor MRI (DTMRI) datasets as reference geometries from which synthesized coarsely-sliced datasets simulating in vivo MRI were produced. 3D(More)
An efficient MapReduce Algorithm for performing Similarity Joins between multisets is proposed. Filtering techniques for similarity joins minimize the number of pairs of entities joined and hence improve the efficiency of the algorithm. Multisets represent real-world data better by considering the frequency of its elements. Prior serial algorithms(More)