Self-calibrating technique for x-ray imaging scanners

A mobile radiography apparatus has radio-opaque markers, each marker coupled to a portion of an x-ray head of the mobile radiography apparatus, wherein each of the markers is in a radiation path that extends from an x-ray source. A detector is mechanically uncoupled from the x-ray source for positio...

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Bibliographic Details
Main Authors Sehnert, William J, Lin, Yuan
Format Patent
LanguageEnglish
Published 31.12.2019
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:A mobile radiography apparatus has radio-opaque markers, each marker coupled to a portion of an x-ray head of the mobile radiography apparatus, wherein each of the markers is in a radiation path that extends from an x-ray source. A detector is mechanically uncoupled from the x-ray source for positioning behind a patient. Processing logic is configured to calculate detector position with relation to the x-ray source according to identified marker positions in acquired projection images, remove marker indications in the acquired projection images, reconstruct a volume image according to the acquired projection images, and display one or more portions of the reconstructed volume image.
Bibliography:Application Number: US201815971213