Browsing by Subject "Imaging, Three-Dimensional"
Now showing items 1-20 of 21
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A digital collection of rare and endangered lemurs and other primates from the Duke Lemur Center.
(PloS one, 2019-01)Scientific study of lemurs, a group of primates found only on Madagascar, is crucial for understanding primate evolution. Unfortunately, lemurs are among the most endangered animals in the world, so there is a strong impetus ... -
A low-cost, portable, and quantitative spectral imaging system for application to biological tissues.
(Opt Express, 2010-06-07)The ability of diffuse reflectance spectroscopy to extract quantitative biological composition of tissues has been used to discern tissue types in both pre-clinical and clinical cancer studies. Typically, diffuse reflectance ... -
A new fully automated approach for aligning and comparing shapes.
(Anatomical record (Hoboken, N.J. : 2007), 2015-01)Three-dimensional geometric morphometric (3DGM) methods for placing landmarks on digitized bones have become increasingly sophisticated in the last 20 years, including greater degrees of automation. One aspect shared by ... -
A positioning QA procedure for 2D/2D (kV/MV) and 3D/3D (CT/CBCT) image matching for radiotherapy patient setup.
(Journal of applied clinical medical physics, 2009-10-06)A positioning QA procedure for Varian's 2D/2D (kV/MV) and 3D/3D (planCT/CBCT) matching was developed. The procedure was to check: (1) the coincidence of on-board imager (OBI), portal imager (PI), and cone beam CT (CBCT)'s ... -
A three dimensional nerve map of human bladder trigone.
(Neurourology and urodynamics, 2017-04)Central efferent and afferent neural pathways to and from the human urinary bladder are well-characterized, but the location and arborization of these nerves as they traverse the serosa, muscularis, and urothelial layers ... -
An enteroendocrine cell-enteric glia connection revealed by 3D electron microscopy.
(PLoS One, 2014)The enteroendocrine cell is the cornerstone of gastrointestinal chemosensation. In the intestine and colon, this cell is stimulated by nutrients, tastants that elicit the perception of flavor, and bacterial by-products; ... -
Automatic segmentation of seven retinal layers in SDOCT images congruent with expert manual segmentation.
(Opt Express, 2010-08-30)Segmentation of anatomical and pathological structures in ophthalmic images is crucial for the diagnosis and study of ocular diseases. However, manual segmentation is often a time-consuming and subjective process. This paper ... -
CLARITY and PACT-based imaging of adult zebrafish and mouse for whole-animal analysis of infections.
(Dis Model Mech, 2015-12)Visualization of infection and the associated host response has been challenging in adult vertebrates. Owing to their transparency, zebrafish larvae have been used to directly observe infection in vivo; however, such larvae ... -
Compressive holography.
(2012)Compressive holography estimates images from incomplete data by using sparsity priors. Compressive holography combines digital holography and compressive sensing. Digital holography consists of computational image estimation ... -
Dietary inference from upper and lower molar morphology in platyrrhine primates.
(PLoS One, 2015)The correlation between diet and dental topography is of importance to paleontologists seeking to diagnose ecological adaptations in extinct taxa. Although the subject is well represented in the literature, few studies directly ... -
Global view of the functional molecular organization of the avian cerebrum: mirror images and functional columns.
(J Comp Neurol, 2013-11)Based on quantitative cluster analyses of 52 constitutively expressed or behaviorally regulated genes in 23 brain regions, we present a global view of telencephalic organization of birds. The patterns of constitutively expressed ... -
Hyperpolarized Xe MR imaging of alveolar gas uptake in humans.
(PLoS One, 2010-08-16)BACKGROUND: One of the central physiological functions of the lungs is to transfer inhaled gases from the alveoli to pulmonary capillary blood. However, current measures of alveolar gas uptake provide only global information ... -
Identification of fluorescent beads using a coded aperture snapshot spectral imager.
(Appl Opt, 2010-04-01)We apply a coded aperture snapshot spectral imager (CASSI) to fluorescence microscopy. CASSI records a two-dimensional (2D) spectrally filtered projection of a three-dimensional (3D) spectral data cube. We minimize a convex ... -
Improved delineation of short cortical association fibers and gray/white matter boundary using whole-brain three-dimensional diffusion tensor imaging at submillimeter spatial resolution.
(Brain Connect, 2014-11)Recent emergence of human connectome imaging has led to a high demand on angular and spatial resolutions for diffusion magnetic resonance imaging (MRI). While there have been significant growths in high angular resolution ... -
Intraoperative spectral domain optical coherence tomography for vitreoretinal surgery.
(Opt Lett, 2010-10-15)We demonstrate in vivo human retinal imaging using an intraoperative microscope-mounted optical coherence tomography system (MMOCT). Our optomechanical design adapts an Oculus Binocular Indirect Ophthalmo Microscope (BIOM3), ... -
Investigation of sliced body volume (SBV) as respiratory surrogate.
(Journal of applied clinical medical physics, 2013-01-07)The purpose of this study was to evaluate the sliced body volume (SBV) as a respiratory surrogate by comparing with the real-time position management (RPM) in phantom and patient cases. Using the SBV surrogate, breathing ... -
Magnetic resonance microscopy.
(Anal Cell Pathol (Amst), 2012) -
Optical-CT 3D Dosimetry Using Fresnel Lenses with Minimal Refractive-Index Matching Fluid.
(PLoS One, 2016)Telecentric optical computed tomography (optical-CT) is a state-of-the-art method for visualizing and quantifying 3-dimensional dose distributions in radiochromic dosimeters. In this work a prototype telecentric system (DFOS-Duke ... -
Smooth operator: The effects of different 3D mesh retriangulation protocols on the computation of Dirichlet normal energy.
(American journal of physical anthropology, 2017-05)Dirichlet normal energy (DNE) is a metric of surface topography that has been used to evaluate the relationship between the surface complexity of primate cheek teeth and dietary categories. This study examines the effects ... -
Spectrotemporal CT data acquisition and reconstruction at low dose.
(Med Phys, 2015-11)PURPOSE: X-ray computed tomography (CT) is widely used, both clinically and preclinically, for fast, high-resolution anatomic imaging; however, compelling opportunities exist to expand its use in functional imaging applications. ...
