Method and system for three dimensional tomosynthesis imaging

• US 20050133708A1
• Filed: 09/30/2004
• Published: 06/23/2005
• Est. Priority Date: 12/18/2003
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Al-Khalidy, Abdulrahman Abdallah, Eberhard, Jeffrey Wayne
• Application Number:
  US10/955,632
• Publication Number:
  US 20050133708A1
• Time in Patent Office: Days
• US Class Current: 250/234
• CPC Class Codes: A61B 6/025 Tomosynthesis
• CPC Class Codes: A61B 6/027 characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
• CPC Class Codes: A61B 6/4028 resulting in acquisition of views from substantially different positions, e.g. EBCT
• CPC Class Codes: A61B 6/4441 the rigid structure being a C-arm or U-arm
• CPC Class Codes: H01J 3/14 Arrangements for focusing or reflecting ray or beam H01J3/02, H01J3/04 take precedence

Abstract

An imaging system for scanning a volume of interest in an object, the system includes a radiation source configured to traverse in a plurality of focal spot positions, and a detector configured to acquire a plurality of acquisition images of the volume of interest in the object, wherein the detector is configured to translate beyond an edge of the detector for each focal spot position.

Claims

1. An imaging system for scanning a volume of interest in an object, the system comprising:

a radiation source configured to traverse in a plurality of focal spot positions; and

a detector configured to acquire a plurality of acquisition images of the volume of interest in the object, wherein the detector is configured to translate beyond an edge of the detector for each focal spot position.

2. The system of claim 1 further comprising translating the radiation source beyond the edge of the detector.

3. The system of claim 1 further comprising translating the detector in an opposite direction with respect to the radiation source.

4. The system of claim 1 wherein a corresponding translation of the detector beyond the edge of the detector for each focal spot position is adjusted to correct for an angle of radiation source.

5. The system of claim 1 wherein a corresponding translation of the detector beyond the edge of the detector for each focal spot position is adapted to correct for image blurring due to motion.

6. The system of claim 1 wherein a corresponding translation of the detector beyond the edge of the detector for each focal spot position is adapted to correct for image data not acquired at edge of detector.

7. A method for reducing missing data while scanning a volume of interest in an object using an imaging system, the method comprising:

traversing a radiation source in a plurality of focal spot positions; and

translating a detector beyond an edge of the detector, each of the plurality of detector positions corresponding to a respective focal spot position.

8. The method of claim 7 further comprising translating the radiation source beyond the edge of the detector.

9. The method of claim 7 further comprising moving the detector in an opposite direction with respect to a radiation source movement.

10. The method of claim 7 wherein a corresponding translation of the detector beyond the edge of the detector for each focal spot position is adjusted to correct for an angle of radiation source.

11. The method of claim 7 wherein a corresponding translation of the detector beyond the edge of the detector for each focal spot position is adapted to correct for image blurring due to motion.

12. The method of claim 7 wherein a corresponding translation of the detector beyond the edge of the detector for each focal spot position is adapted to correct for image data not acquired at edge of detector.