Positioning in magnetic resonance imaging
AssigneeKabushiki Kaisha Toshiba
InventorIsao Tatebayashi
Life of this patent
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Abstract
In magnetic resonance imaging, prepared first is a three-dimensional image data consisting of a plurality of tomographic image data of a diagnostic portion of an object being examined. Then, data of a pilot image in the three-dimensional image data are designated, and the pilot image is displayed. Then, a linear ROI (region of interest) is placed on the displayed pilot image. Then, image data of a cross-section are edited from the three-dimensional image data, the cross-section passing through the linear ROI in a space of the three-dimensional image data. On the basis of the edited image data of the cross-section, a prediction image for scan is displayed.
Claims20
A method of magnetic resonance imaging in which positioning for a diagnostic scan is carried out prior to the diagnostic scan to obtain a magnetic resonance image of an object being examined, the method comprising the steps of:
- preparing a three-dimensional image data consisting of a plurality of tomographic image data of a diagnostic portion of the object;
- designating data of a tomographic image among the three-dimensional image data as data of a pilot image;
- displaying the pilot image;
- placing a linear region of interest on the displayed pilot image;
- editing image data of a cross-section from the three-dimensional image data, the cross-section passing through the linear region of interest in a space of the three-dimensional image data;
- displaying the edited image data as a prediction image representing the magnetic resonance image positionally obtainable when carrying out the diagnostic scan;
- and
- judging whether or not said prediction image is desired in response to a signal manually supplied for the prediction image.
A method of magnetic resonance imaging in which positioning for a diagnostic scan is carried out prior to the diagnostic scan to obtain a magnetic resonance image of an object being examined, the method comprising the steps of:
- preparing a three-dimensional image data consisting of a plurality of tomographic image data of a diagnostic portion of the object;
- designating data of a tomographic image among the three-dimensional image data as data of a pilot image;
- displaying the pilot image;
- placing a first linear region of interest on the displayed pilot image;
- editing image data of a first cross-section from the three-dimensional image data, the first cross-section passing through the first linear region of interest and being perpendicular to the pilot image in a space of the three-dimensional image data;
- displaying the edited image data along the first cross-section as a reference image;
- placing a second linear region of interest on the displayed reference image;
- editing image data of a second cross-section from the three-dimensional image data, the second cross-section passing through the second linear region of interest in a space of the three-dimensional image data;
- and
- displaying the edited image data along the second cross-section as a prediction image representing the magnetic resonance image positionally obtainable when carrying out the diagnostic scan.
A method of magnetic resonance imaging in which positioning for a diagnostic scan is carried out prior to the diagnostic scan to obtain a magnetic resonance image of an object being examined, the method comprising the steps of:
- preparing a three-dimensional image data consisting of a plurality of tomographic image data of a diagnostic portion of the object;
- designating data of a tomographic image among the three-dimensional image data as data of a pilot image;
- displaying the pilot image;
- placing a two-dimensional data collecting area on the displayed pilot image;
- placing a linear region of interest on the displayed pilot image, the linear region of interest passing through the two-dimensional data collecting area;
- editing image data of a cross-section from the three-dimensional image data, the cross-section passing through the linear region of interest and being perpendicular to the pilot image in a space of the three-dimensional image data;
- displaying the edited image data along the cross-section as a reference image;
- and
- specifying a one-dimensional data collecting range on the displayed reference image, the one-dimensional data collecting range, together with the two-dimensional data collecting area, determining a three-dimensional voxel size for local excitation in spectroscopy.
A system for magnetic resonance imaging in which positioning for a diagnostic scan is carried out prior to the diagnostic scan to obtain a magnetic resonance image of an object being examined, the system comprising:
- means for preparing a three-dimensional image data consisting of a plurality of tomographic image data of a diagnostic portion of the object;
- means for designating data of a tomographic image among the three-dimensional image data as data of a pilot image;
- means for displaying the pilot image;
- means for placing a linear region of interest on the displayed pilot image;
- means for editing image data of a cross-section from the three-dimensional image data, the cross-section passing through the linear region of interest in a space of the three-dimensional image data;
- means for displaying the edited image data as a prediction image representing the magnetic resonance image positionally obtainable when carrying out the diagnostic scan;
- and
- means for judging whether or not said prediction image is desired in response to a signal manually supplied for the prediction image.
A system for magnetic resonance imaging in which positioning for a diagnostic scan is carried out prior to the diagnostic scan to obtain a magnetic resonance image of an object being examined, the system comprising:
- means for preparing a three-dimensional image data consisting of a plurality of tomographic image data of a diagnostic portion of the object;
- means for designating data of a tomographic image among the three-dimensional image data as data of a pilot image;
- means for displaying the pilot image;
- means for placing a first linear region of interest on the displayed pilot image;
- means for editing image data of a first cross-section from the three-dimensional image data, the first cross-section passing through the first linear region of interest and being perpendicular to the pilot image in a space of the three-dimensional image data;
- means for displaying the edited image data along the first cross-section as a reference image;
- means for placing a second linear region of interest on the displayed reference image;
- means for editing image data of a second cross-section from the three-dimensional image data, the second cross-section passing through the second linear region of interest in a space of the three-dimensional image data;
- and
- means for displaying the edited image data along the second cross-section as a prediction image representing the magnetic resonance image positionally obtainable when carrying out the diagnostic scan.
Dependencies are inferred from the claim text.