Novel device to contain aerosols during phacoemulsification.

We herein describe a novel device to contain droplets and aerosols during phacoemulsification. We modified the silicon phaco test chamber into an aerosol containment chamber (ACC) by shortening the chamber and making a pear-shaped opening at one aspect of its tip. The ACC was fitted over phaco tip such that 4-5 mm of phaco tip and sleeve was exposed.

Nonlinear electrocardiographic imaging using polynomial approximation networks.

Electrocardiography is a valuable tool to aid in medical understanding and treatment of heart-related ailments, specifically atrial fibrillation (AF) and other irregular cardiac behavior. Although signs of AF will manifest in conventional electrocardiogram (ECG) recordings, interpretation and localization of AF sources require significant clinical expertise. In this vein, electrocardiographic imaging has emerged as an important medical imaging modality that provides reconstructions of the heart's electrical activity from non-invasive multi-lead body-surface ECG and anatomical x-ray computed tomography images.

Robust image-adaptive data hiding using erasure and error correction.

Information-theoretic analyses for data hiding prescribe embedding the hidden data in the choice of quantizer for the host data. In this paper, we propose practical realizations of this prescription for data hiding in images, with a view to hiding large volumes of data with low perceptual degradation. The hidden data can be recovered reliably under attacks, such as compression and limited amounts of image tampering and image resizing.