Method and system for obtaining a sequence of x-ray images using a reduced dose of ionizing radiation

摘要

Methods, systems, and apparatus for obtaining a sequence of x-ray images are disclosed. An object of interest in a first x-ray image is detected and an area of interest, based on a predicted motion of the object of interest, is determined. A second x-ray image of the area of interest is acquired using spatial x-ray modification to control an x-ray to pass through a portion of a patient corresponding to the area of interest.

主权项

1. A method for obtaining a sequence of x-ray images, comprising:
detecting an object of interest in a patient in a first x-ray image; determining an area of interest based on a predicted motion of the object of interest; acquiring a second x-ray image based on the area of interest determined in the first x-ray image using spatial x-ray modification to control an x-ray to pass through a portion of the patient corresponding to the area of interest, the second x-ray image having a reduced imaging size of the patient relative to the first x-ray image; determining whether the object of interest was successfully detected in the second x-ray image; and in response to determining that the object of interest was not successfully detected in the second x-ray image:
generating an x-ray scatter image of a region beyond the area of interest determined in the first x-ray image.