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US 11,636,594 B2Granted
System and method for providing an extended image of a patient
AssigneeRaysearch Laboratories AB (publ)
InventorsStina Svensson, Sebastian Andersson, Kjell Eriksson, Ola Weistrand
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Abstract
A computer based method of obtaining a 3D image of a part of a patient's body is disclosed, based on a fraction image having a limited field-of-view and extending the field of view with information from an image of the patient's outline, obtained from a surface scan of the patient. Anatomical data from the planning image are preferably used to fill in the outline image, by means of a contour-guided deformable registration between the planning image and contour.
Claims9
A computer-implemented method of creating a composite image of a patient, comprising the steps of:
- a. acquiring a first 3D image of a portion of a person, said first image having a first field of view;
- b. acquiring a surface scan corresponding to the exterior of the person;
- c. acquiring a second 3D image of the outer contour of at least a part of the person based on the surface scan, said outer contour comprising an area of the patient corresponding to the first field of view and extending outside of the first field of view;
- d. acquiring approximate image data inside of the outer contour, to produce an approximate 3D image of the interior of the person, wherein acquiring approximate image data includes setting a suitable uniform density value inside at least a part of the outer contour, the uniform density value being a predetermined density value, or being based on a CT image;
- and
- e. applying data from the first image in the area of the approximate image corresponding to the first field of view to create a composite 3D image.
3 more elements
Dependencies are inferred from the claim text.