Automatic display of previously-acquired endoluminal images

Abstract

Apparatus and methods are provided for use with an endoluminal data-acquisition device that acquires a set of endoluminal data-points of a lumen of a subject's body at respective locations inside the lumen, a second endoluminal device, and a display configured to display images. At least one processor includes location-association functionality that associates a given data point acquired by the endoluminal data-acquisition device with a given location within the lumen. Location-determination functionality determines, by means of image processing, in an extraluminal image of the second endoluminal device, a current location of at least a portion of the second endoluminal device. Display-driving functionality drives the display to display an indication of the endoluminal data point associated with the location, in response to determining that the portion of the second device is currently at the location. Other applications are also described.

1 . A co-registration system, comprising:
 a processor configured for communication with an extraluminal imaging device, a first endoluminal data-acquisition device, a different second endoluminal data-acquisition device, and a display, wherein the processor is configured to:
 receive an extraluminal image of a lumen of a body of a subject; 
 receive, from the first endoluminal data-acquisition device operating according to a first modality and positioned at a first location within the lumen, first endoluminal data associated with the lumen at the first location, wherein the first endoluminal data comprises data of the first modality; 
 associate the first endoluminal data with a first corresponding location of the lumen in the extraluminal image; 
 receive, from the second endoluminal data-acquisition device operating according to a different second modality and positioned at a second location within the lumen, second endoluminal data associated with the lumen at the second location, wherein the second endoluminal data comprises data of the second modality; 
 associate the second endoluminal data with a second corresponding location of the lumen in the extraluminal image; 
 generate, based on associating the first endoluminal data with the first corresponding location and associating the second endoluminal data with the second corresponding location, a screen display comprising:
 the extraluminal image; 
 a first indication of the first endoluminal data at the first corresponding location in the extraluminal image; and 
 a second indication of the second endoluminal data at the second corresponding location in the extraluminal image; and 
 
 output the screen display to the display. 
   
     
     
         2 . The co-registration system of  claim 1 , wherein the first location is different from the second location. 
     
     
         3 . The co-registration system of  claim 1 , wherein the first endoluminal data comprises an endoluminal image of the lumen at the first location. 
     
     
         4 . The co-registration system of  claim 3 , wherein the endoluminal image comprises an intravascular ultrasound image or an optical coherence tomography image. 
     
     
         5 . The co-registration system of  claim 3 , wherein the second endoluminal data comprises at least one of pressure, flow, or temperature within the lumen at the second location. 
     
     
         6 . The co-registration system of  claim 3 , wherein the screen display further comprises:
 an endoluminal image stack comprising the endoluminal image; and   a marking associated with the first location in the endoluminal image stack.   
     
     
         7 . The co-registration system of  claim 1 , wherein the first indication and the second indication are overlaid on the extraluminal image in the screen display. 
     
     
         8 . The co-registration system of  claim 1 , wherein the screen display further comprises at least one of the first endoluminal data or the second endoluminal data overlaid on the extraluminal image. 
     
     
         9 . The co-registration system of  claim 1 , wherein the processor is configured to merge the first endoluminal data and the second endoluminal data. 
     
     
         10 . The co-registration system of  claim 1 , further comprising the display. 
     
     
         11 . The co-registration system of  claim 1 , further comprising the extraluminal imaging device. 
     
     
         12 . The co-registration system of  claim 1 , further comprising the first endoluminal data-acquisition device. 
     
     
         13 . The co-registration system of  claim 1 , further comprising the second endoluminal data-acquisition device.