METHOD AND MAGNETIC RESONANCE APPARATUS TO ACQUIRE TEMPORALLY SUCCESSIVE IMAGE DATA SETS
First Claim
1. A method for acquiring and processing a series of temporally successive image data sets, comprising the steps of:
- acquiring a series of temporally successive magnetic resonance image data sets using a magnetic resonance data acquisition system, with corresponding k-space image data also being acquired for each of said magnetic resonance image data sets;
for each of respective magnetic resonance image data sets in a first portion of the magnetic resonance image data sets in said series, automatically electronically determining a measure that characterizes a global intensity value of the respective magnetic resonance image data set; and
automatically electronically correcting respective magnetic resonance data sets in a second portion of the image data sets in said series using the respective measures to compensate for a temporal change of the respective global image intensity values for the magnetic resonance image data sets in said series, or using the respective measures to automatically electronically evaluate a third portion of the magnetic resonance image data sets in said series dependent on a temporal change of the respective global image intensity values for the magnetic resonance image data sets in said series.
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Abstract
In a method and magnetic resonance apparatus for acquisition and processing of a series of temporally successive image data sets of the series of temporally successive image data sets is acquired by magnetic resonance technology, wherein k-space image data corresponding to each image data set are acquired, and for each image data set in the series, a determination is made, in at least one first part of that image data set, of a measure that characterizes a global image intensity value of that image data set. At least one second part of the image data sets is corrected using the determined measures and/or the determined measures are used in an evaluation of at least one third part of the image data sets. A temporal change of the global image intensity value in the series of temporally successive image data sets is compensated or taken into account in this manner.
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Citations
19 Claims
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1. A method for acquiring and processing a series of temporally successive image data sets, comprising the steps of:
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acquiring a series of temporally successive magnetic resonance image data sets using a magnetic resonance data acquisition system, with corresponding k-space image data also being acquired for each of said magnetic resonance image data sets; for each of respective magnetic resonance image data sets in a first portion of the magnetic resonance image data sets in said series, automatically electronically determining a measure that characterizes a global intensity value of the respective magnetic resonance image data set; and automatically electronically correcting respective magnetic resonance data sets in a second portion of the image data sets in said series using the respective measures to compensate for a temporal change of the respective global image intensity values for the magnetic resonance image data sets in said series, or using the respective measures to automatically electronically evaluate a third portion of the magnetic resonance image data sets in said series dependent on a temporal change of the respective global image intensity values for the magnetic resonance image data sets in said series. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A magnetic resonance apparatus comprising:
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a magnetic resonance data acquisition unit configured to receive an examination subject therein to acquire a series of temporally successive magnetic resonance image data sets from the subject, with corresponding k-space image data being acquired for each magnetic resonance data set in said series; and a processor configured to automatically determined, for each of respective magnetic resonance image data sets in a first portion of the image data sets in said series, a measure that characterizes a global intensity value of the respective magnetic resonance image data sets, and to automatically correct respective magnetic resonance data sets in a second portion of the image data sets in said series by using the respective measures to compensate for a temporal change of the respective global image intensity values for the magnetic resonance image data sets in said series, or using the respective measures to automatically evaluate at least a third portion of the magnetic resonance image data sets in said series dependent on a temporal change of the respective global image intensity values for the magnetic resonance image data sets in said series. - View Dependent Claims (19)
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Specification