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Purpose. To evaluate the diagnosis value of integrated positron emission tomography and computed tomography (PET/CT) with lung masses, this study emphasized the correlation between tumor size and maxi...
Improved Diagnostics Using Polarization Imaging and Artificial Neural Networks
Diagnostics Polarization Imaging Artificial Neural Networks
2009/9/7
In recent years, there has been an increasing interest in studying the propagation of polarized light in biological cells and tissues. This paper presents a novel approach to cell or tissue imaging us...
A Context-Sensitive Active Contour for 2D Corpus Callosum Segmentation
Context-Sensitive 2D Corpus Callosum Segmentation
2009/9/4
We propose a new context-sensitive active contour for 2D corpus callosum segmentation. After a seed contour consisting of interconnected parts is being initialized by the user, each part will start to...
Cone-Beam Composite-Circling Scan and Exact Image Reconstruction for a Quasi-Short Object
Quasi-Short Object Cone-Beam Composite-Circling Scan
2009/9/4
Here we propose a cone-beam composite-circling mode to solve the quasi-short object problem, which is to reconstruct a short portion of a long object from longitudinally truncated cone-beam data invol...
Resurrecting Brinley Plots for a Novel Use: Meta-Analyses of Functional Brain Imaging Data in Older Adults
Resurrecting Brinley Plots Brain Imaging Data
2009/9/4
By plotting response times of young and older adults across a variety of tasks, Brinley spurred investigation and debate into the theory of general cognitive slowing. Though controversial, Brinley plo...
Dorsolateral Prefrontal Cortex: A Possible Target for Modulating Dyskinesias in Parkinson's Disease by Repetitive Transcranial Magnetic Stimulation
Dorsolateral Prefrontal Cortex Modulating Dyskinesias
2009/9/4
We studied whether five sessions of 10 Hz repetitive transcranial magnetic stimulation (rTMS treatment) applied over the dorsolateral prefrontal cortex (DLPFC) or the primary motor cortex (MC) i...
Noninvasive techniques such as functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) have provided insight into understanding how neural connections are altered in c...
Repetitive Transcranial Magnetic Stimulation of Dorsolateral Prefrontal Cortex Affects Performance of the Wisconsin Card Sorting Task during Provision of Feedback
Transcranial Prefrontal Cortex
2009/9/4
Early functional neuroimaging studies of tasks evaluating executive processes, such as the Wisconsin card sorting task (WCST), only assessed trials in blocks that may contain a large amount of differe...
Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography
Fiber Tractography Anatomical
2009/9/4
Diffusion tensor imaging (DTI) is considered to be a promising tool for revealing the anatomical basis of functional networks. In this study, we investigate the potential of DTI to provide the anatomi...
Exact Interior Reconstruction from Truncated Limited-Angle Projection Data
Truncated Limited-Angle Projection Data Reconstruction
2009/9/4
Using filtered backprojection (FBP) and an analytic continuation approach, we prove that exact interior reconstruction is possible and unique from truncated limited-angle projection data, if we assume...
Contribution of Exploratory Methods to the Investigation of Extended Large-Scale Brain Networks in Functional MRI: Methodologies, Results, and Challenges
Functional MRI Methodologies
2009/9/4
A large-scale brain network can be defined as a set of segregated and integrated regions, that is, distant regions that share strong anatomical connections and functional interactions. Data-driven inv...
Digital Eversion of a Hollow Structure: An Application in Virtual Colonography
Virtual Colonography Hollow Structure
2009/9/4
A new methodology is presented for digital eversion of a hollow structure. The digital eversion is advantageous for better visualization of a larger portion of the inner surface with preservation of g...
Scatter and Blurring Compensation in Inhomogeneous Media Using a Postprocessing Method
Scatter Blurring Compensation Postprocessing Method
2009/9/4
An efficient postprocessing method to compensate for the scattering and blurring effects in inhomogeneous medium in SPECT is proposed. A two-dimensional point spread function (2D-PSF) was estimated in...
Model-Based Analysis of Flow-Mediated Dilation and Intima-Media Thickness
Flow-Mediated Dilation Intima-Media Thickness
2009/9/4
We present an end-to-end system for the automatic measurement of flow-mediated dilation (FMD) and intima-media thickness (IMT) for the assessment of the arterial function. The video sequences are acqu...
Current computed tomography (CT) scanners, including micro-CT scanners, utilize a point x-ray source. As we target higher and higher spatial resolutions, the reduced x-ray focal spot size limits the t...