A novel method is presented for accurately reconstructing a spatially resolved map of diffuse light flux on a surface using images of the surface and a model of the imaging system. This is achieved by applying a model-based reconstruction algorithm with an existing forward model of light propagation through free space that accounts for the effects of perspective, focus, and imaging geometry. It...

Cognitive brain imaging is accumulating datasets about the neural substrate of many different mental processes. Yet, most studies are based on few subjects and have low statistical power. Analyzing data across could bring more power; yet current brain-imaging analytic framework cannot be used at scale as it requires casting all cognitive tasks in a unified theoretical framework. We introduce ne...

Diffusion tensor magnetic resonance (DTMR) imaging and diffusion tensor imaging (DTI) have been widely used to probe noninvasively biological tissue structures. However, DTI suffers from long acquisition times, which limit its practical and clinical applications. This paper proposes a new Compressed Sensing (CS) reconstruction method that employs joint sparsity and rank deficiency to reconstruc...

gamma knife is a new noninvasive method for treatment of patient with brain tumors. ‎another name of this procedure is steriotatic radiosurgery.‎‏ ‏this computerized advanced ‎technique was implicated by a team including neurosurgeon, neuroradialogist, oncologist, and ‎a nurse. this method is used for treatment of certain brain tumors and lesions. the benefits are ‎low risk of postoperative com...

Posterior reversible encephalopathy syndrome (PRES) is a characterized by seizures, headache, altered mentation, and loss of vision associated with white matter changes on imaging. A 25-year-old primigravida presented at 31 weeks gestation atypical PRES generalized seizures mental status. Magnetic resonance brain imaging showed high-intensity lesions in bilateral corona radiata, capsulo-ganglio...

conclusions thi visualizes appendix better than conventional us. it is a simple and time saving method that may eliminate further diagnostic imaging, and it may decrease negative appendectomy rates and related complications. patients and methods the study was performed on 185 patients who applied for routine us examinations in whom clinical findings of appendicitis were detected in 25. we searc...

The purpose of this study was to analyze participants’ levels of hemoglobin as they performed arithmetic mental calculations using Optical Topography (OT, helmet type brain-scanning system, also known as Functional Near-Infrared Spectroscopy or fNIRS). A central issue in cognitive neuroscience involves the study of how the human brain encodes and manipulates information, including mental calcul...