Cerbral Perfusion Imaging using Cone Beam Computed Tomography

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 1R43NS062602-01A1
Agency Tracking Number: NS062602
Amount: $100,416.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: N/A
Solicitation Number: PHS2007-2
Small Business Information
DUNS: 018381405
HUBZone Owned: Y
Woman Owned: Y
Socially and Economically Disadvantaged: Y
Principal Investigator
 () -
Business Contact
Phone: (734) 418-5108
Email: jhaberkorn@xorantech.com
Research Institution
DESCRIPTION (provided by applicant): Stroke is the leading cause of adult disability and third leading cause of death in the United States with approximately 700,000 new or recurrent strokes each year. Perfusion Computed Tomography (PCT) provides maps of parameters such as cerebral blood flow, volume and transit times. These parameters can be used to distinguish between ischemic and hemorrhagic stroke, to determine the location and extent of the hypoperfused area, and also to differentiate between the irre versibly damaged and salvageable tissue. We will investigate the feasibility of implementing PCT on a mobile, flat-panel detector, cone-beam CT (CBCT) system. Using such a platform will address two shortcomings of current PCT technology: lack of whole-brai n coverage and limited accessibility in the emergency department and intensive care unit. We will focus on two issues: 1) relatively low scanning speed of flat-panel-based CBCT, which may hamper temporal sampling of contrast dynamics; and 2) increased proj ection noise and limited dynamic range of flat-panel detectors. In this project we will first experimentally investigate the characteristics of flat- panel detectors for imaging iodine enhanced vessels with respect to image noise and contrast. In the secon d stage of the research we will develop and validate a model- based, iterative algorithm for reconstruction of dynamic projection data acquired with relatively slowly rotating systems. PUBLIC HEALTH RELEVANCE: Stroke is the leading cause of adult disabili ty and third leading cause of death in the United States with approximately 700,000 new or recurrent strokes each year. The mobile flat-panel-based CT system capable of perfusion imaging proposed here will allow for rapid assessment of neurovascular functi on of the whole brain directly in the emergency department. This tool may bring about improvements in stroke diagnosis and provide important support for treatment decisions, thus greatly improving outcome for acute strokes victims.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government