Controlled gantry imbalance

摘要

An imaging system includes a stationary frame (104) and a pivotable frame (106) that is pivotably attached to the stationary frame (104) and configured to pivot about a transverse axis (108). A rotating frame (110) is rotatably supported by the pivotable portion (106) and configured to rotate about a longitudinal axis (114) around an examination region (112) and a rotating frame balancer (118) selectively introduces a rotating frame mass imbalance. A radiation source (116) is affixed to the rotating frame (110) and emits radiation from a focal spot, wherein the radiation traverses the examination region (112). A detector array (128) detects the radiation that traverses the examination region (112) and generates a signal indicative thereof.

主权项

1. An imaging system, comprising:
a stationary frame; a pivotable frame that is pivotably attached to the stationary frame and configured to pivot about a transverse axis; a rotating frame that is rotatably supported by the pivotable frame and configured to rotate about a longitudinal axis around an examination region; a rotating frame balancer configured to selectively introduce a rotating frame mass imbalance during scanning a subject; a radiation source that is affixed to the rotating frame and that emits radiation from a focal spot, wherein the radiation traverses the examination region; and a detector array that detects the radiation that traverses the examination region and generates a signal indicative thereof.