Systems and methods for determining a timing bolus delay
AssigneeGE Precision Healthcare LLC
InventorsChelsey Lewis, Cecilia Cortez, Christine Hammond, Pamela McNicol, Bhabani Pattanayak
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Abstract
Embodiments of the present disclosure relate to a method for determining a timing bolus delay. The method can include administering a test bolus to a subject; acquiring, via a computed tomography (CT) imaging system, a plurality of images of the subject; determining a contrast value for each of the plurality of images; generating a contrast curve based on the determined contrast values; determining a peak contrast value on the contrast curve; determining a prep delay based on the peak contrast value; and administering a contrast-enhanced CT scan of the subject based on the determined prep delay.
Claims20
A method for determining a timing bolus delay comprising:
- administering a test bolus to a subject;
- acquiring, via a computed tomography (CT) imaging system, a plurality of non-diagnostic images of the subject at a predetermined frequency;
- determining a contrast value for each of the plurality of images;
- generating a contrast curve representing the determined contrast values versus time;
- determining a peak contrast value on the contrast curve;
- determining a prep delay based on a time corresponding to the peak contrast value;
- and
- administering a contrast-enhanced CT scan of the subject based on the determined prep delay.
A method for determining a timing bolus delay comprising:
- administering a test bolus to a subject;
- acquiring, via a computed tomography (CT) imaging system, a plurality of non-diagnostic images of the subject at a predetermined frequency;
- determining a contrast value for each of the plurality of images;
- generating a contrast curve representing the determined contrast values versus time;
- identifying a plateau on the contrast curve;
- determining a prep delay based on a time corresponding to the identified plateau;
- and
- administering a contrast-enhanced CT scan of the subject based on the identified plateau.
A system for determining a timing bolus delay comprising:
- a computed tomography (CT) imaging system configured to acquire a plurality of images of a subject after a test bolus has been administered to the subject;
- and
- a computing device comprising a processor and a non-transitory computer-readable storage device storing computer-executable instructions, the instructions operable to cause the processor to perform operations comprising:
- receiving the plurality of non-diagnostic images of the subject from the CT imaging system acquired at a predetermined frequency;
- determining a contrast value for each of the plurality of images;
- generating a contrast curve representing the determined contrast values versus time;
- determining a peak contrast value on the contrast curve;
- and
- determining a prep delay based on a time corresponding to the peak contrast value.
Dependencies are inferred from the claim text.