CTA scanning starting method and device, CT equipment and CT system

Embodiments of the invention provide a CTA scanning starting method and device, CT equipment and a CT system. According to the embodiments of the invention, the method comprises the steps of: obtaining a cross-section image obtained by scanning a positioning layer of a target part of a subject, dete...

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Bibliographic Details
Main Author ZHAI CHUNHUI
Format Patent
LanguageChinese
English
Published 20.10.2020
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:Embodiments of the invention provide a CTA scanning starting method and device, CT equipment and a CT system. According to the embodiments of the invention, the method comprises the steps of: obtaining a cross-section image obtained by scanning a positioning layer of a target part of a subject, determining a first ROI region planned to carry out contrast agent concentration detection on the cross-section image, determining a second ROI region according to the first ROI region, wherein the second ROI region covers all the first ROI region and is larger than the first ROI region; and determininga plurality of detection regions in the second ROI region, carrying out contrast agent concentration tracking detection on the plurality of detection regions and the first ROI region, and triggeringCTA scanning on the subject if the contrast agent concentration of any one of the plurality of detection regions and the first ROI region reaches a preset concentration threshold. Thus, the contrast agent concentration change
Bibliography:Application Number: CN202010610100