Method and apparatus for brain perfusion magnetic resonance images
US8427151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2011 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Jan 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30016
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention discloses a method and apparatus for brain perfusion magnetic resonance imaging (MRI) technique with the removal of cerebrospinal fluid (CSF) pixels. This invention utilizes a CSF/brain-contrast-enhanced image, wherein the CSF/brain-contrast-enhanced image is defined as the signal difference between CSF and brain matter divided by a standard deviation of air background random noise is larger than 3, acquired from the subject's brain, and applies a segmentation technique to remove the CSF pixels. After removing the CSF pixels on parametric images, the extent of brain tissue with delayed perfusion can be better identified. By using a good region of interest enclosing the correct delayed-perfusion region, the measurement on the tissue volume and perfusion parameters would be more accurate than the area contaminated by CSF pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.