Medical diagnostic method and apparatus to control dual energy exposure techniques based on image information
First Claim
1. A method for controlling dual energy image acquisition to automatically adjust exposure parameters, said method comprising:
- obtaining a first image from a first exposure of a patient, said first image including pixel values representative of a patient anatomy;
segmenting said first image based on said pixel values representative of the anatomy of the patient;
defining a set of patient parameters characterizing the patient anatomy in at least one segmented portion of said first image; and
adjusting exposure settings for a second exposure of the patient anatomy based upon said set of patient parameters.
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Abstract
A preferred embodiment of the present invention provides a method and apparatus for optimized dual energy image acquisition. The system comprises a dual energy medical imaging system, a detector, a user interface, an image segmentation module, a characterization module, and a control module. The method comprises obtaining an image from a first exposure of a patient and segmenting the image into an anatomy of interest. The method further comprises characterizing the segmented anatomy in terms of a set of patient parameters and optimizing a second exposure of the segmented anatomy based upon said anatomy and the characterization of the anatomy. A resulting anatomy image is obtained from analysis of the first and second exposures.
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Citations
24 Claims
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1. A method for controlling dual energy image acquisition to automatically adjust exposure parameters, said method comprising:
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obtaining a first image from a first exposure of a patient, said first image including pixel values representative of a patient anatomy;
segmenting said first image based on said pixel values representative of the anatomy of the patient;
defining a set of patient parameters characterizing the patient anatomy in at least one segmented portion of said first image; and
adjusting exposure settings for a second exposure of the patient anatomy based upon said set of patient parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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13. A system for controlling dual energy image acquisition, said system comprising:
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a dual energy medical imaging apparatus for performing a select one of multiple exposure dosage levels and techniques, said dual energy medical imaging system acquiring at least first and second exposures;
a detector converting said first and second exposures into first and second digital images;
a user interface setting image acquisition parameters;
an image segmentation module identifying an anatomy of interest in said first digital image;
a characterization module defining a set of patient parameters characterizing said anatomy of interest; and
a control module adjusting at least one of said exposure dosage levels and techniques performed by said dual energy image apparatus during said second exposure based on said set of patient parameters.
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24. A method for controlling multiple exposure image acquisition, said method comprising:
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obtaining an image from an exposure of a patient, said image including pixel values representative of a patient anatomy;
segmenting said image based on said pixel values representative of the anatomy of the patient;
defining a set of patient parameters characterizing the patient anatomy in at least one segmented portion of said image;
adjusting exposure settings for a subsequent exposure of the patient anatomy based upon said set of patient parameters; and
obtaining at least one subsequent exposures of the patient anatomy, each of said exposures obtained using exposure settings adjusted based on characterization of a previous image.
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Specification