Method and magnetic resonance imaging apparatus for automatically determining the sagittal plane of a subject
AssigneeSiemens Aktiengesellschaft
InventorJoachim Graessner
Life of this patent
Estimating the term…
Abstract
In a method and magnetic resonance apparatus for the automatic determination of the sagittal plane in the examination region of an object, an essentially coronal localizer image exposure of the examination region is acquired, from which the sagittal plane is determined by an automatic image assessment by the image-processing unit of the magnetic resonance apparatus.
Claims15
A method for automatically determining the sagittal plane of a subject comprising the steps of:
- with a magnetic resonance imaging apparatus, having an image-processing unit associated therewith, acquiring data from a subject in the magnetic resonance imaging apparatus representing a substantially coronal localizer image containing the spinal column of the subject depicted with a visual emphasis;
- and
- in said image-processing unit, using said visual emphasis to automatically electronically analyze said localizer image to determine the sagittal plane of the subject by identifying a maximum of a distribution in said image, selected from the group consisting of a grayscale value distribution and a brightness distribution, in each of two transverse planes, separated from each other, and identifying a line connecting the maxima.
A method for automatically determining the sagittal plane of a subject, comprising the steps of:
- with a magnetic resonance imaging apparatus having an image processing unit associated therewith, acquiring data from a subject in the magnetic resonance imaging apparatus representing a substantially coronal localizer image containing a knee of the subject;
- and
- in said image processing unit, automatically electronically analyzing said localizer image to determine the sagittal plane of the subject by identifying the rear Condyles of a femur of the subject as anatomical landmarks, and determining said sagittal plane by identifying a line connecting said rear condyles and determining said sagittal plane as being at a right angle in said image to said line.
A magnetic resonance apparatus for automatically determining the sagittal plane of a subject, comprising:
- a magnetic resonance imaging scanner having an image processing unit associated therewith, configured to acquire magnetic resonance data from a subject in the magnetic resonance imaging apparatus representing a substantially coronal localizer image containing the spinal column of the subject depicted with a visual emphasis;
- and
- said image processing unit being configured to automatically analyze said localizer image to determine the sagittal plane of the subject by identifying a maximum of a distribution in said image, selected from the group consisting of a gray scale value distribution and a brightness distribution, in each of two transverse planes, separated from each other, and identifying a line connecting the maxima.
A magnetic resonance apparatus for automatically determining the sagittal plane of a subject, comprising:
- a magnetic resonance imaging scanner having an image processing unit associated therewith, configured to acquire magnetic resonance data from a subject in the magnetic resonance scanner representing a substantially coronal localizer image containing a knee of the subject;
- and
- said image processing unit being configured to automatically analyze said localizer image to determine the sagittal plane of the subject by electronically identifying the rear condyles of a femur of the subject as anatomical landmarks, and by identifying a line connecting the rear condyles and determining said sagittal plane as being at a right angle in said image to said line.
Dependencies are inferred from the claim text.