MRI vibration measuring device
AssigneeKorea Research Institute of Standards and Science
InventorYoungseob Seo
Life of this patent
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Abstract
The present embodiment relates to a magnetic resonance imaging (MRI) vibration measurement device for measuring vibrations of an object inserted into an MRI scanner, and the MRI vibration measurement device includes a human phantom apparatus including a human phantom inserted into the MRI scanner in z-axis direction (head-to-foot direction), a light source which emits light, a mirror structure which emits the light to the human phantom and provides light reflected by the human phantom, an optical sensor which measures the reflected light to detect the z-axis direction vibrations of the human phantom, and a vibration sensor part which is disposed in the human phantom apparatus and detects vibrations in both x-axis and y-axis directions which are perpendicular to each other and are orthogonal to the z-axis.
Claims9
A magnetic resonance imaging (MRI) vibration measurement device for measuring vibrations of an object inserted into an MRI scanner, the MRI vibration measurement device comprising:
- a human phantom apparatus including a human phantom inserted into the MRI scanner in a direction (z-axis, head-to-foot direction);
- a light source which emits light;
- a mirror structure which emits the light to the human phantom and provides light reflected by the human phantom;
- an optical sensor which measures the reflected light to detect z-axis direction vibrations of the human phantom;
- and
- a vibration sensor part which is disposed in the human phantom apparatus and detects vibrations in both x-axis and y-axis directions which are perpendicular to each other and orthogonal to the z-axis,
- wherein the human phantom is an object configured to mimic human characteristics.
A magnetic resonance imaging (MRI) vibration measurement device for measuring vibrations of an object inserted into an MRI scanner, the MRI vibration measurement device comprising:
- a human phantom apparatus including a human phantom inserted into the MRI scanner;
- and
- a vibration sensor part disposed in the human phantom apparatus and formed of a non-magnetic material,
- wherein the vibration sensor part includes at least one accelerometer sensor for measuring vibrations in x-axis and y-axis directions which are perpendicular to each other and also are orthogonal to a direction (z-axis) in which the human phantom is inserted into the MRI scanner,
- wherein the human phantom has any one shape of a spherical shape and a cylindrical shape, and
- wherein the human phantom is formed of any one material of glass and high density polyethylene (HDPE).
Dependencies are inferred from the claim text.