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PUBLIC RELEASE DATE:
2-Apr-2014

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Contact: Chew Munkit
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World Scientific

Diffeomorphometry and geodesic positioning systems for human anatomy

IMAGE: This is the Geodesic Positioning of 25 subjects in AHA atlas coordinates with colors representing AHA parcellation; black area located in anterior apical segment 13 showing structural phenotype difference between...

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A team of researchers from the Center for Imaging Science at the Johns Hopkins University and the CMLA of the École Normale Supérieure Cachan have demonstrated new algorithmic technologies for the parametric representation of human shape and form. Coupled with advanced imaging technologies, this presents opportunities for tracking soft-tissue deformations associated with cardiovascular studies, radiation treatment planning in Oncology, and neurodegenerative brain illnesses. The software algorithms provide tools for basic science and pre-clinical investigations for synchronizing structural and functional information across anatomical scales, allowing for the building of BrainClouds of physiological information in human brain mapping and thus connecting information across multiple anatomical and physiological scales.

"This is a remarkable combination of algorithm development and software technology that provides the basis for extending classical notions used for the positioning of rigid bodies adapted for the positioning of deformable bodies appropriate to human coordinates systems. Connecting this to modern machine learning algorithms opens the door for future research and clinical applications in which high throughput massive databases of structural and functional anatomy can be indexed and searched, analogous to the current state of the art in GoogleMaps", says Michael I. Miller Ph.D., a professor of Biomedical Engineering of the Johns Hopkins University and senior author on this paper.

By linking notions from Lagrangian and Hamiltonian mechanics of rigid bodies, the investigators have defined human shape as a Riemannian metric space generalizing D'Arcy Thompson's classical formulation of mathematical morphology of shape and form, with the metric structure defined by the geodesic flow of coordinates connecting one shape to another.

"Once human shape is embedded in these Riemannian or geodesic coordinates, then human anatomy can be indexed and searched", Miller continued. "This is a beautiful example of how advances in imaging technology coupled to computational and algorithmic methods are enabling both biological discovery and clinical applications."

Using large volumes of spatial and temporal data being generated via high throughput imaging systems, the investigators in the United States and Europe are exploiting these geodesic positioning systems to uncover new biomarkers and diagnostic parameters that may provide clues to fundamental disease mechanisms in several neuropsychiatric illnesses, including dementia, Huntingdon's, schizophrenia, autism and mood disorder diseases.

At the same time another team from the Johns Hopkins School of Medicine, led by Drs. Susumu Mori and Thierry Huisman in collaboration with Jonathan Lewin, the director of the Department of Radiology, is deploying a Pediatric Brain Cloud.

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Co-authors of the TECHNOLOGY paper are Alain Trouvé from the CMLA, École Normale Supérieure Cachan and Laurent Younes of the Center for Imaging Science and Department of Applied Mathematics and Statistics at the Johns Hopkins University.

This research was supported in part by grants from the National Institute of Health and the French ANR. Corresponding author for this study in TECHNOLOGY is Michael I. Miller, mim@cis.jhu.edu.

For the paper, please visit http://www.worldscientific.com/doi/pdf/10.1142/S2339547814500010

About TECHNOLOGY

Fashioned as a high-impact, high-visibility, top-echelon publication, this new ground-breaking journal - TECHNOLOGY - will feature the development of cutting-edge new technologies in a broad array of emerging fields of science and engineering. The content will have an applied science and technological slant with a focus on both innovation and application to daily lives. It will cover diverse disciplines such as health and life science, energy and environment, advanced materials, technology-based manufacturing, information science and technology, and marine and transportations technologies.

About World Scientific Publishing Co.

World Scientific Publishing is a leading independent publisher of books and journals for the scholarly, research and professional communities. The company publishes about 500 books annually and more than 120 journals in various fields. World Scientific collaborates with prestigious organisations like the Nobel Foundation, US National Academies Press, as well as its subsidiary, the Imperial College Press, amongst others, to bring high quality academic and professional content to researchers and academics worldwide. To find out more about World Scientific, please visit http://www.worldscientific.com.



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