Method and system for correcting images and measurements acquired by MRI
First Claim
1. A method for correcting at least one of examination images and measurements acquired by a magnetic resonance imaging (MRI) device comprises:
- imaging a phantom of known structure at selected intervals to generate phantom images;
performing automatic analysis of the phantom images relative to images of the phantom acquired at a previous time;
calculating variations between respective phantom images; and
, correcting the at least one of examination images and measurements using the calculated variations between phantom images.
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Abstract
A method and system for correcting examination images acquired by a magnetic resonance imaging (MRI) device are provided. The method comprises the steps of imaging a phantom of known structure at selected intervals to generate phantom images, analyzing the phantom images relative to images of the phantom acquired at a previous time, calculating variations between respective phantom images, and correcting the examination images and/or measurements based off the examination images using the calculated variations between phantom images. The system comprises an imaging device for acquiring images of a subject and the phantom and an image processor adapted to correct the examination images based on the calculated variations between respective phantom images.
16 Citations
20 Claims
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1. A method for correcting at least one of examination images and measurements acquired by a magnetic resonance imaging (MRI) device comprises:
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imaging a phantom of known structure at selected intervals to generate phantom images;
performing automatic analysis of the phantom images relative to images of the phantom acquired at a previous time;
calculating variations between respective phantom images; and
,correcting the at least one of examination images and measurements using the calculated variations between phantom images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for performing longitudinal examinations of a set of anatomical structures comprising:
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imaging the structures with at least one imaging device;
performing an automatic correction process to correct for variations due to the imaging device or process;
measuring selected regions of interest within the anatomical structures; and
repeating the imaging, performing and measuring steps for at least one successive examination for tracking the measured regions of interest. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A system for performing Magnetic Resonance Imaging (MRI) examinations comprising:
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an imaging device for acquiring images of regions of interest within a subject and a phantom of known structure; and
,an image processor adapted to analyze images of the phantom and calculate scanner related variations and further adapted to automatically correct at least one of images of regions of interest and measurements of the regions of interest within the subject based on the calculated variations. - View Dependent Claims (17, 18, 19, 20)
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Specification