X-ray or gamma ray systems or devices – Accessory – Alignment
Patent
1998-11-12
2000-07-25
Bruce, David V.
X-ray or gamma ray systems or devices
Accessory
Alignment
378 982, 378197, 378207, A61B 608
Patent
active
060929286
ABSTRACT:
An x-ray source (30) transmits a beam of x-rays through an examination region (E). A detector (28), in an initial spatial orientation relative to the source, receives the beam and generates a view of image data indicative of the intensity of the beam received. A first accelerometer (40), capable of generating acceleration data in at least one dimension, is associated with the detector. A second accelerometer (42), capable of generating acceleration data in at least one dimension is associated with the source. A position calculator (60) mathematically calculates a position of both the source and detector based on the acceleration data generated by the accelerometers. An image reconstructor (62) receives the relative position data; electronically corrects for any misalignment or change in beam travel distance, and reconstructs the views into a volumetric image representation.
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Mattson Rodney A.
Roos Pieter G.
Bruce David V.
Ho Allen C.
Picker International Inc.
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