Method and apparatus for determining treatment for stroke
US7580737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2002 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jan 29, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/507
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for evaluating acute stroke patients and for determining whether a stroke patient will benefit from the use of thrombolysis therapy includes obtaining measurements of the cerebral blood flow and cerebral blood volume of the brain of a stroke patient, determining ischemic areas of the brain where the ischemic areas comprise the measurements of cerebral blood flow which are less than a first value and creating a penumbra-infarct map of the ischemic areas of the brain using the measurements. The infarct area corresponds to the area of the brain where cerebral blood volume is less than a second value. The penumbra area corresponds to the area of the brain where cerebral blood volume is greater than this second dvalue. The method also includes determining a ratio of penumbra size to the total of penumbra size and infarct size. When the ratio is greater than a predetermined value, the stroke patient is a candidate for thrombolysis therapy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.