Aneurysm detection

摘要

An approach to automatically detecting, classifying and/or highlighting abnormal structures such as brain aneurysms is based on three-dimensional studies of the brain vessels. The approach is applicable to effectively all currently available modalities of acquisition of the cerebral vessels, including magnetic resonance angiography (MRA), computed tomography angiography (CTA), and conventional catheter-based three-dimensional rotational angiography (3DRA).

主权项

1. A method for analysis of a vascular system comprising:
accepting data characterizing a surface structure of a vascular system of a subject, the data identifying locations on the surface of vessels of the vascular system based on a segmented three-dimensional image of a portion of the subject's body including the vascular system; at each of the identified locations on the surface of the vessels, determining, using at least one processor, a local descriptor of vessel shape based on a computation of a Writhe Number that is based on a local neighborhood of the vessel surface corresponding to the identified location, based on quantitative relationships between each location of a plurality of locations in the local neighborhood and the identified location; and using the determined local descriptors of vessel shape relative to a threshold to determine diagnostic information for presentation.