Coregistration of endoluminal data points with values of a luminal-flow-related index

摘要: Apparatus and methods are described for use with an endoluminal data-acquisition device configured to be moved through a lumen of subject's body, two-dimensional angiographic image the lumen. A value luminal-flow-related index subject is determined non-invasively at plurality locations along lumen, least partially by performing processing on image. While being set data points within acquired, using device. It that respective correspond and, in response thereto, it values luminal flow-related index. Other applications also described.