Method for tube spit correction based on high voltage output

Details Method for tube spit correction based on high voltage output Method for tube spit correction based on high voltage output

2006-10-03

2006-10-03

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

C378S118000

Reexamination Certificate

active

07114850

ABSTRACT:
The present invention provides a method to detect tube spits and to reduce spit related artifacts in a computed tomography imaging system. A way of detecting tube spit is to monitor the generator kilovolt or milliamp waveforms. Changes in kV waveform follow closely with those in offset-corrected projection data. If a tube-spit event is not detected, processing proceeds without tube spit correction. If a tube-spit event is detected, a tube spit correction is performed. The objective of tube-spit correction is to remove image artifacts due to the occurrence of a tube-spit event.

REFERENCES:
patent: 6466645 (2002-10-01), Hsieh et al.

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