Patent · US Active

Detecting haemorrhagic stroke in CT image data

US9159127B2 · kind B2 · utility

6Cited by

3References

17Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Kirsten Meetz · Hamburg, DE
Thomas Buelow · Großhansdorf, DE
Stewart Young · Hamburg, DE

Key dates

Filing date	Jun 17, 2008
Grant date	Oct 13, 2015
Priority date	—
Expiry date	May 28, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06T2210/41
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to a system (100) arranged to delineate the acute intracerebral haematoma in non-contrasted CT images in two stages. The first stage, performed by the extraction unit (110), employs an analysis of gray values of the image data in order to extract the candidate region. The candidate region may comprise both an acute haematoma and other regions having similar gray values, e.g., regions resulting from partial volume effects at the interface of the bony structures of the skull and the brain. The novel second stage, performed by the classification unit (120), analyzes spatial features of the candidate region such as, for example, the size, shape, and connectedness to the skull bone of the candidate region. Using spatial features of the candidate region improves the correctness of classification of the candidate region as a true or false acute haematoma.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.