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.

Meetz; Kirsten

Buelow; Thomas

Young; Stewart

Koninklijke Philips N.V.

Detecting haemorrhagic stroke in CT image data

A method and apparatus for percutaneous arterial closure with staples. The apparatus comprises a triple lumen catheter, two j-shaped guide wires, a vascular stapler, and a tubular member. The method and apparatus provide for closure of arterial punctures that are typically created during catheterization. The method and apparatus provide a percutaneous method that reduces the likelihood of bleeding and the formation of false aneurysms. The method comprises inserting the triple lumen catheter in the arterial opening to deploy a pair of guide wires having projections at the end. The catheter is removed and the projections on the end of the guide wires are engaged with the arterial wall around the opening. The guide wires are then twisted to close the opening. Next, a stapler is moved down the guide wires to the site of the opening where staples are inserted to close the opening. Then, the tubular member slides over the guide wires and straightens the projections for removal from inside the artery. The tubular member and the guide wires are then removed from arterial opening and the skin is closed with a normal staple.

false/hemorragia

Detecting haemorrhagic stroke in CT image data

Percutaneous arterial closure with staples

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