Synthetic Ground Truth for Validation of Brain Tumor MRI Segmentation (2008)
Marcel Prastawa, Elizabeth Bullitt, Guido Gerig
Abstract. Validation and method of comparison for segmentation of magnetic resonance images (MRI) presenting pathology is a challenging task due to the lack of reliable ground truth. We propose a new...
A Principal Component Analysis for Trees (2008)
Aydin, Burcu, Pataki, Gabor, Wang, Haonan, Bullitt, Elizabeth, Marron, J. S.
The active field of Functional Data Analysis (about understanding the variation in a set of curves) has been recently extended to Object Oriented Data Analysis, which considers populations of more...
Synthetic Ground Truth for Validation of Brain Tumor MRI Segmentation (2008)
Marcel Prastawa, Elizabeth Bullitt, Guido Gerig
Abstract. Validation and method of comparison for segmentation of magnetic resonance images (MRI) presenting pathology is a challenging task due to the lack of reliable ground truth. We propose a new...
UNCHealthyBrainMRI-Inputs (2008)
Aylward, Stephen, Bullitt, Elizabeth
MRI scans of healthy individuals
Chetna Pathak, Mark Van Horn, Susan Weeks, Elizabeth Bullitt
Abstract. Accurate 3D/2D vessel registration is complicated by issues of image quality, occlusion, and other problems. This study performs a quantitative comparison of 3D/2D vessel registration in...
Lauren M. Brubaker, Elizabeth Bullitt, Chaoying Yin, Terry Van Dyke, Weili Lin
Previous research on the vasculature of tumor-bearing animals has focused upon the microvasculature. Magnetic resonance angiography (MRA) offers a noninvasive, complementary approach that provides...
Elizabeth Bullitt, Affiliate Member, Stephen R. Aylward
rendering of segmented image objects
Model-Based Brain and Tumor Segmentation (2008)
Nathan Moon, Elizabeth Bullitt, Koen Van Leemput, Guido Gerig
Abstract — Combining image segmentation based on statistical classification with a geometric prior has been shown to significantly increase robustness and reproducibility. Using a probabilistic...
Synthetic Ground Truth for Validation of Brain Tumor MRI Segmentation (2008)
Marcel Prastawa, Elizabeth Bullitt, Guido Gerig
Abstract. Validation and method of comparison for segmentation of magnetic resonance images (MRI) presenting pathology is a challenging task due to the lack of reliable ground truth. We propose a new...
Computer-Aided Diagnosis and Display Lab (2008)
Stephen R. Aylward, Julien Jomier, Sue Weeks, Elizabeth Bullitt
We have developed a method for rigidly aligning images of tubes. This paper presents an evaluation of the consistency of that method for three-dimensional images of human vasculature. Vascular images...
Bullitt, Elizabeth, Zeng, Donglin, Mortamet, Benedicte, Ghosh, Arpita, Aylward, Stephen R., Lin, Weili, ...
Histological and magnetic resonance imaging studies have demonstrated that age-associated alterations of the human brain may be at least partially related to vascular alterations. Relatively little...
Contains information on the age, gender, etc of each subject in the database.
Vessel Enhancing Diffusion Filter (2007)
Enquobahrie, Andinet, Ibanez, Luis, Bullitt, Elizabeth, Aylward, Stephen
This paper describes vessel enhancing diffusion (VED) filters implemented using the Insight Toolkit (ITK). The filters are implementation of the VED algorithm developed by Manniesing et al . The VED...
3D/2D Model-to-Image Registration Applied to TIPS Surgery (2006)
Jomier, Julien, Bullitt, Elizabeth, Van Horn, Mark H., Pathak, Chetna, Aylward, Stephen
We have developed a novel model-to-image registration technique which aligns a 3-dimensional model of vasculature with two semi-orthogonal fluoroscopic projections. Our vascular registration method...
Bénédicte Mortamet, Donglin Zeng, Guido Gerig, Marcel Prastawa, Elizabeth Bullitt
Abstract: A publicly available database of high-quality, multi-modal MR brain images of carefully screened healthy subjects, equally divided by sex, and with an equal number of subjects per age...
Bénédicte Mortamet, Donglin Zeng, Guido Gerig, Marcel Prastawa, Elizabeth Bullitt
Abstract: A publicly available database of high-quality, multi-modal MR brain images of carefully screened healthy subjects, equally divided by sex, and with an equal number of subjects per age...
Mortamet, Bénédicte, Zeng, Donglin, Gerig, Guido, Prastawa, Marcel, Bullitt, Elizabeth
A publicly available database of high-quality, multi-modal MR brain images of carefully screened healthy subjects, equally divided by sex, and with an equal number of subjects per age decade, would...
Multi-class posterior atlas formation via unbiased kullback-leibler template estimation (2004)
Peter Lorenzen, Brad Davis, Guido Gerig, Elizabeth Bullitt, Sarang Joshi
Abstract. Many medical image analysis problems that involve multimodal images lend themselves to solutions that involve class posterior density function images. This paper presents a method for large...
Determining Malignancy of Brain Tumors by Analysis of Vessel Shape (2004)
Elizabeth Bullitt, Inkyung Jung, Keith Muller, Guido Gerig, Stephen Aylward, Sarang Joshi, ...
Abstract. Vessels supplying malignant tumors are abnormally shaped. This paper describes a blinded study that assessed tumor malignancy by analyzing vessel shape within MR images of 21 brain tumors...
Robust estimation for brain tumor segmentation (2003)
Marcel Prastawa, Elizabeth Bullitt, Sean Ho, Guido Gerig
Abstract. Given models for healthy brains, tumor segmentation can be seen as a process of detecting abnormalities or outliers that are present with certain image intensity and geometric properties....
Measuring Tortuosity of the Intracerebral Vasculature from MRA Images (2003)
Elizabeth Bullitt, Guido Gerig, Stephen M. Pizer, Weili Lin, Stephen R Aylward
Abstract--The clinical recognition of abnormal vascular tortuosity, or excessive bending, twisting, and winding, is important to the diagnosis of many diseases. Automated detection and quantitation...
Vascular attributes and malignant brain tumors (2003)
Elizabeth Bullitt, Guido Gerig, Stephen Aylward, Sarang Joshi, Keith Smith, Matthew Ewend, ...
Abstract. Many diseases affect blood vessel morphology. This report analyzes vessel attributes (tortuosity, vessel density, radius, and terminal branch count) within 5 malignant gliomas as seen by...
Robust estimation for brain tumor segmentation (2003)
Marcel Prastawa, Elizabeth Bullitt, Sean Ho, Guido Gerig
Abstract. Given models for healthy brains, tumor segmentation can be seen as a process of detecting abnormalities or outliers that are present with certain image intensity and geometric properties....
Vascular segmentation - simulated data (2002)
Aylward, Stephen, Bullitt, Elizabeth
Images are in metaImage format. Truth is also provided as centerline coordinates and radius values (x,y,z,r)
Volume rendering of segmented image objects (2002)
Elizabeth Bullitt, Stephen R. Aylward
Abstract—This paper describes a new method of combining ray-casting with segmentation. Volume rendering is performed at interactive rates on personal computers, and visualizations include both...
Automatic brain and tumor segmentation (2002)
Nathan Moon, Elizabeth Bullitt, Koen Van Leemput, Guido Gerig
Combining image segmentation based on statistical classification with a geometric prior has been shown to significantly increase robustness and reproducibility. Using a probabilistic geometric model...
Level set evolution with region competition: Automatic 3-d segmentation of brain tumors (2002)
Sean Ho, Elizabeth Bullitt, Guido Gerig
Abstract — This paper discusses the development of a new method for the automatic segmentation of anatomical structures from volumetric medical images. Driving application is the segmentation of...
Level set evolution with region competition: Automatic 3-d segmentation of brain tumors (2002)
Sean Ho, Elizabeth Bullitt, Guido Gerig
Abstract — This paper discusses the development of a new method for the automatic segmentation of anatomical structures from volumetric medical images. Driving application is the segmentation of...
Volume rendering of segmented tubular objects (2001)
Elizabeth Bullitt, Stephen Aylward
Abstract. This paper describes a new method of combining ray casting with segmented tubular objects, such as blood vessels, for purposes of clinically useful display. The method first projects...
Volume rendering of segmented tubular objects (2001)
Elizabeth Bullitt, Stephen Aylward
Abstract. This paper describes a new method of combining ray casting with segmented tubular objects, such as blood vessels, for purposes of clinically useful display. The method first projects...