SYSTEM AND METHOD TO ADAPTIVELY CONTROL CONTRAST-ENHANCED DIAGNOSTIC IMAGING PROCEDURE
First Claim
1. A non-transitory computer-readable storage medium having a set of instructions stored thereon which, when executed by the computer, causes the computer to:
- prompt a user to enter patient-specific information for a given scan patient;
prompt a user to select a scan type;
receive bolus tracking data for the given patient;
provide an individualized scan protocol defining a contrast agent delivery, an x-ray dosage, and scan sequence timing, based upon the patient-specific information, the scan type, and the bolus tracking data;
trigger commencement of a scan sequence to acquire image data from a region-of-interest (ROI), the scan sequence based on the individualized scan protocol;
reconstruct an image from the acquired image data;
update the x-ray dosage to an updated x-ray dosage based on the image; and
trigger commencement of a second scan sequence to acquire image data from the ROI, the second scan sequence based on the updated x-ray dosage.
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Abstract
A system and method are provided for determining individualized scan and injection protocols for contrast-enhanced diagnostic imaging. Taking into account parameters specific to the scan subject, injection-related parameters, and scan parameters, the system and method can determine an optimal timing for a scan sequence to begin, to ensure that the scan sequence coincides with a desired contrast enhancement. Some embodiments further provide for real-time triggering of the scan commencement based on bolus tracking, and can adapt the scan and injection protocols in real-time based on monitored dynamic scan subject parameters and/or actual enhancement values determined from image data.
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Citations
20 Claims
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1. A non-transitory computer-readable storage medium having a set of instructions stored thereon which, when executed by the computer, causes the computer to:
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prompt a user to enter patient-specific information for a given scan patient; prompt a user to select a scan type; receive bolus tracking data for the given patient; provide an individualized scan protocol defining a contrast agent delivery, an x-ray dosage, and scan sequence timing, based upon the patient-specific information, the scan type, and the bolus tracking data; trigger commencement of a scan sequence to acquire image data from a region-of-interest (ROI), the scan sequence based on the individualized scan protocol; reconstruct an image from the acquired image data; update the x-ray dosage to an updated x-ray dosage based on the image; and trigger commencement of a second scan sequence to acquire image data from the ROI, the second scan sequence based on the updated x-ray dosage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system control for a diagnostic imaging apparatus comprising:
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a user interface adapted to permit a user to enter data specific to a given scan; a contrast delivery device configured to cause a contrast agent to be delivered to a scan subject; a data processing module configured to reconstruct an image from scan data; and a scan protocol module connected to receive data entered by the user on the user interface and programmed to; prescribe a scan protocol for the given scan to acquire the scan data from a region-of-interest (ROI); determine an enhancement value of the contrast agent in the ROI from the reconstructed image; adjust an x-ray dosage of the scan protocol based on the enhancement value during the given scan; and cause the commencement of a subsequent scan of the ROI based on the scan protocol comprising the adjusted x-ray dosage. - View Dependent Claims (13, 14, 15, 16)
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17. A method for contrast-enhanced diagnostic imaging comprising:
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estimating, for a given scan subject, a post-delivery time for a desired contrast agent enhancement value based on a number of subject parameters, a number of contrast agent parameters, and a number of scan parameters of an imaging scan sequence; executing the imaging scan sequence comprising a data scan portion timed to coincide with the post-delivery time; controlling administration of a contrast agent via a scan protocol module of a diagnostic imaging system during the imaging scan sequence; acquiring scan data of a region-of-interest (ROI) of the scan subject during the data scan portion; reconstructing an image of the ROI of the scan subject based at least on the acquired scan data; adapting a first scan parameter of the number of scan parameters of the imaging scan sequence to adjust an x-ray dosage of the imaging scan sequence based on the reconstructed image; executing the adapted imaging scan sequence comprising the adapted first scan parameter; and acquiring scan data of the ROI of the scan subject during the data scan portion of the adapted imaging scan sequence. - View Dependent Claims (18, 19, 20)
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Specification