IMAGE DATA BASED RETROSPECTIVE TEMPORAL SELECTION OF MEDICAL IMAGES

• US 20070036417A1
• Filed: 04/18/2006
• Published: 02/15/2007
• Est. Priority Date: 09/26/2000
• Status: Abandoned Application

• Current Assignee: Vital Images Incorporated (Canon Inc.)
• Original Assignee: Vital Images Incorporated (Canon Inc.)
• Inventors: Johnson, Todd, Brejl, Marek, Argiro, Vincent, Rashid, Renee, Brejl, Milan
• Application Number:
  US11/379,183
• Publication Number:
  US 20070036417A1
• Time in Patent Office: Days
• US Class Current: 382/131
• CPC Class Codes: A61B 5/7289 Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition
• CPC Class Codes: A61B 6/504 for diagnosis of blood vessels, e.g. by angiography
• CPC Class Codes: A61B 6/5288 involving retrospective matching to a physiological signal
• CPC Class Codes: A61B 6/541 involving acquisition triggered by a physiological signal
• CPC Class Codes: G06F 18/00 Pattern recognition
• CPC Class Codes: G06T 11/005 Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
• CPC Class Codes: G06T 2207/10072 Tomographic images
• CPC Class Codes: G06T 2207/30048 Heart; Cardiac
• CPC Class Codes: G06T 2211/412 Dynamic
• CPC Class Codes: G06T 7/251 involving models
• CPC Class Codes: G06V 2201/031 of internal organs

Abstract

Systems and methods for deriving a cardiac cycle signal by selecting images of a portion of a cardiovascular system include receiving a plurality of images from a scanner that have been recorded over a period of time. The images represent one or more locations along the extent of the cardiovascular system. The images are then selected based on common criteria determined from the plurality of images and without reference to an external signal. The common criteria comprises changes in the size of a cross section of the aorta, changes in the volume of the heart, changes in the area of a cross section of the heart. In addition, the criteria can include the mean pixel difference between adjacent images.

Claims

1. A method for selecting images of a portion of a cardiovascular system comprising:

receiving from an image scanner a plurality of images recorded over a period of time, the images representing one or more locations along the extent of the cardiovascular system; and

selecting at least a subset of the images based on common criteria determined from the plurality of images and without reference to an external signal.

2-54. -54. (canceled)