Multi-energy x-ray imaging
AssigneesVarian Medical Systems International AG, Varian Medical Systems, Inc.
InventorsJosh STAR-LACK, Michael GREEN, Heinrich RIEM, Timothy GUERTIN
Life of this patent
Estimating the term…
Abstract
An imaging method includes obtaining a first image data for a subset of a target region, the subset of the target region having a first metallic object, obtaining a second image data for the target region, and using the first and second image data to determine a composite image. A imaging system includes a first detector configured to provide a first projection data using a first radiation having high energy, and a second detector configured to provide a second projection data using a second radiation having low energy, wherein the first detector has a first length, the second detector has a second length, and the first length is less than 75% of the second length.
Claims24
1-21. (canceled)
An imaging system, comprising:
- a first detector configured to provide a first projection data using a first radiation having high energy;
- and
- a second detector configured to provide a second projection data using a second radiation having low energy;
- wherein the first detector has a first length, the second detector has a second length, and the first length is less than 75% of the second length.
The imaging system of 36, wherein the collimator is configured to change the shape of the beam such that the beam irradiates a subset of a region of interest, the subset having one or more metallic objects.
An imaging system, comprising:
- an electronic portal imaging device;
- and
- a high detective quantum efficiency detector;
- wherein the high detective quantum efficiency detector has a first length, the electronic portal imaging device has a second length, and the first length is less than 75% of the second length.
44-54. (canceled)
Dependencies are inferred from the claim text.