US 7,477,722 B2
Imaging geometry for image-guided radiosurgery
Aaron W. Carrano, San Jose, Calif. (US); Gopinath Kuduvalli, San Jose, Calif. (US); Michael J. Saracen, Oakland, Calif. (US); and Mohan Bodduluri, Palo Alto, Calif. (US)
Assigned to Accuray Incorporated, Sunnyvale, Calif. (US)
Filed on Oct. 09, 2007, as Appl. No. 11/973,722.
Application 11/973722 is a continuation of application No. 11/170832, filed on Jun. 29, 2005, granted, now 7,302,033.
Prior Publication US 2008/0037705 A1, Feb. 14, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 6/02 (2006.01); A61N 5/10 (2006.01); H05G 1/70 (2006.01)
U.S. Cl. 378—41  [378/65; 378/92] 20 Claims
OG exemplary drawing
 
1. An imaging system, comprising:
a first pair of x-ray sources at a first separation to generate a first x-ray beam and a second x-ray beam in an imaging plane, the first x-ray beam and the second x-ray beam disposed to intersect at a first angle at a first imaging center;
a second pair of x-ray sources at a second separation to generate a third x-ray beam and a fourth x-ray beam in the imaging plane, the third x-ray beam and the fourth x-ray beam disposed to intersect at a second angle at a second imaging center; and
a pair of x-ray detectors at a third separation, comprising a first x-ray detector and a second x-ray detector, the first x-ray detector to detect the first x-ray beam and the third x-ray beam, the second x-ray detector to detect the second x-ray beam and the fourth x-ray beam.