User profiles for Raj Shekhar

Vedantam Rajshekhar

- Verified email at cmcvellore.ac.in - Cited by 12330

Raj Shekhar

- Verified email at childrensnational.org - Cited by 5354

Developing a clinically feasible personalized medicine approach to pediatric septic shock

…, RJ Freishtat, J Nowak, RS Shekhar… - American journal of …, 2015 - atsjournals.org
Rationale: Using microarray data, we previously identified gene expression–based subclasses
of septic shock with important phenotypic differences. The subclass-defining genes …

Stereoscopic augmented reality for laparoscopic surgery

…, TD Kane, CA Peters, K Cleary, R Shekhar - Surgical …, 2014 - Springer
Background Conventional laparoscopes provide a flat representation of the three-dimensional
(3D) operating field and are incapable of visualizing internal structures located beneath …

Integration of three-dimensional scar maps for ventricular tachycardia ablation with positron emission tomography-computed tomography

…, A Voudouris, R Peters, M Saba, R Shekhar… - JACC: Cardiovascular …, 2008 - jacc.org
Objectives : This study sought to assess the feasibility of deriving 3-dimensional (3D) scar
maps from positron emission tomography (PET)/computed tomography (CT) hybrid imaging …

Octree-based decimation of marching cubes surfaces

R Shekhar, E Fayyad, R Yagel… - Proceedings of Seventh …, 1996 - ieeexplore.ieee.org
The marching cubes (MC) algorithm is a method for generating isosurfaces. It also generates
an excessively large number of triangles to represent an isosurface; this increases the …

Corneal pachymetry mapping with high-speed optical coherence tomography

Y Li, R Shekhar, D Huang - Ophthalmology, 2006 - Elsevier
OBJECTIVE: To map corneal thickness before and after LASIK with optical coherence tomography
(OCT). DESIGN: Cross-sectional observational study. PARTICIPANTS: Forty-two eyes …

Mutual information-based rigid and nonrigid registration of ultrasound volumes

R Shekhar, V Zagrodsky - IEEE transactions on medical …, 2002 - ieeexplore.ieee.org
We investigated the registration of ultrasound volumes based on the mutual information
measure, a technique originally applied to multimodality registration of brain images. A …

Mathematical model of corneal surface smoothing after laser refractive surgery

D Huang, M Tang, R Shekhar - American journal of ophthalmology, 2003 - Elsevier
PURPOSE: To construct a quantitative model of corneal surface smoothing after laser ablation
for refractive correction. DESIGN: Experimental study, interventional case series, and meta…

COVID-19 disparity among racial and ethnic minorities in the US: a cross sectional analysis

R Tirupathi, V Muradova, R Shekhar, SA Salim… - Travel medicine and …, 2020 - Elsevier
Aim To analyze racial disparities in Coronavirus disease (COVID-19) cases in the United
States of America and discuss possible reasons behind this inequality. Subject and methods …

Combining prognostic and predictive enrichment strategies to identify children with septic shock responsive to corticosteroids

…, R Gedeit, RJ Freishtat, J Nowak, SS Raj… - Critical care …, 2016 - journals.lww.com
Objectives: Prognostic and predictive enrichment strategies are fundamental tools of precision
medicine. Identifying children with septic shock who may benefit from corticosteroids …

Evaluation of three-dimensional segmentation algorithms for the identification of luminal and medial-adventitial borders in intravascular ultrasound images

JD Klingensmith, R Shekhar… - IEEE Transactions on …, 2000 - ieeexplore.ieee.org
Intravascular ultrasound (IVUS) provides direct depiction of coronary artery anatomy, including
plaque and vessel area, which is important in quantitative studies on the progression or …