3 results about "Vascular aneurysm" patented technology

There are provided methods, systems and non-transitory storage mediums for classifying aneurysms in a blood vessel of a given patient. Medically acquired images representing a blood vessel over a portion of the cardiac cycle are received. The images are segmented to obtain segmented anatomical structures of the wall and the lumen of the blood vessel. The volumetric changes of the outer wall and the lumen are calculated over the portion of the cardiac cycle. The volumetric changes of the thrombus are calculated based on the volumetric changes of the outer wall and the lumen. The aneurysm is classified as one four types based at least on the volumetric changes of the lumen and the thrombus. This classification may be used to assess the severity of the aneurysm.

This invention discloses an artificial intelligence-based method for measuring aneurysms in cranial arterial angiography images, comprising the following steps: S1, acquiring keyframes of DSA images; S2, segmenting the keyframes using a deep neural network to distinguish between the background and blood vessels; S3, determining the aneurysm location region based on the segmentation results, obtaining the contour of the region, and simultaneously obtaining the length of the connection between the gray aneurysm region and the white blood vessel region, i.e., the aneurysm diameter width w; S4, based on the obtained aneurysm contour shape, calculating the aneurysm centroid O by spatial moments, drawing a perpendicular line through the centroid O and intersecting the contour boundary, traversing all angles, and taking the largest intersection line segment as the maximum diameter l of the aneurysm, drawing a perpendicular line from the aneurysm diameter width w and intersecting the contour boundary, the maximum height of which is the aneurysm height h. This invention achieves fully automated measurement of the diameter of cerebral vascular aneurysms through a deep neural network trained on a large amount of data, solving the problems of slow speed, poor accuracy, and large influence of subjective factors in manual measurement.

Disclosed herein are medical devices comprising a single-lobed, thin-walled, expandable body (“ballstent” or “blockstent”) and a flexible, elongated delivery device (“delivery catheter”) and systems and methods of use for treating saccular vascular aneurysms and methods of use for occluding segments of blood vessels and other biological conduits.Expandable bodies comprising gold, platinum, or silver that can be compressed, positioned in the lumen of an aneurysm or blood vessel, and expanded to conform to the shape of the aneurysm or segment of blood vessel or biological conduit are disclosed. The external surface of the expandable bodies can be configured to promote local thrombosis and to promote the growth of tissue into and around the wall in order to reduce migration of the expandable body and to occlude and seal the aneurysm or biological conduit. The wall of the expandable bodies can also be configured to release drugs or pharmacologically active molecules, such as those that promote thrombosis, cell proliferation, extracellular matrix deposition, or tissue ingrowth.