Motion artifact reduction in projection imaging

Details Motion artifact reduction in projection imaging Motion artifact reduction in projection imaging

1990-11-19

1993-10-05

Envall, Jr., Roy N.

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36441313, G06F 1542

Patent

active

052511286

ABSTRACT:
An x-ray CT scanner acquires projection data from a series of views during a scan of a patient's chest. Movement of the patient's chest due to respiration is also sensed during the scan and this acquired motion data is employed along with a geometric model of chest motion to calculate factors which correct the acquired projection data and reduce motion artifacts in an image produced by back projecting the acquired projection data.

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