Systems and methods for reducing radiation dosage
AssigneeGE Medical Systems Global Technology Company, LLC
InventorsSteven Ross, Thomas Toth, Willi Hampel, Bruce Dunham
Life of this patent
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Abstract
An imaging system including is described. The imaging system includes a radiation source configured to generate a beam, a collimator configured to collimate the beam to generate a collimated beam, and a detector configured to detect the collimated beam. The collimator is one of a first collimator with a curved contour proportional to a contour of the detector, a second collimator with blades, where slopes of two oppositely-facing surfaces of at least one of the blades are different from each other, and a third collimator having at least two sets of plates, where the plates in a set pivot with respect to each other.
Claims20
An imaging system comprising:
- a radiation source configured to generate a beam;
- a collimator configured to collimate the beam to generate a collimated beam;
- and
- a detector configured to detect the collimated beam, wherein the collimator is one of:
- a first collimator with a curved contour proportional to a contour of the detector;
- a second collimator with blades, wherein slopes of two oppositely-facing surfaces of at least one of said blades are different from each other;
- and
- a third collimator having at least two sets of plates, wherein said plates in a set pivot with respect to each other.
A computed tomography imaging system comprising:
- an x-ray source configured to generate a beam;
- a collimator configured to collimate the x-ray beam to generate a collimated x-ray beam;
- and
- a detector configured to detect the collimated x-ray beam, wherein the collimator is one of:
- a first collimator with a curved contour proportional to a contour of the detector;
- a second collimator with blades, wherein slopes of two oppositely-facing surfaces of at least one of said blades are different from each other;
- and
- a third collimator having at least two sets of plates, wherein said plates in a set pivot with respect to each other.
A method for reducing dosage of radiation incident on a subject, said method comprising:
- transmitting a beam of radiation toward the subject;
- collimating the beam of radiation before the beam reaches the subject;
- and
- detecting the collimated beam of radiation, wherein the collimating is performed by one of:
- a first collimator with a curved contour proportional to a contour of a detector that detects the collimated beam;
- a second collimator with blades, wherein slopes of two oppositely-facing surfaces of at least one of said blades are different from each other;
- and
- a third collimator having at least two sets of plates, wherein said plates in a set pivot with respect to each other.
Dependencies are inferred from the claim text.