PET-MRI apparatus
First Claim
1. A positron emission tomography (PET)-magnetic resonance imaging (MRI) apparatus, comprising:
- a gantry including;
a static magnetic field magnet configured to generates a static magnetic field in a bore having an approximately cylindrical shape;
a gradient coil disposed on an inner circumference side of the static magnetic field magnet and configured to apply a gradient magnetic field to an object disposed in the bore; and
a radio frequency coil disposed on an inner circumference side of the gradient coil and configured to apply a radio frequency magnetic field to the object;
a PET detector configured to detect gamma rays emitted from a positron-emitting radionuclide injected into the object; and
a moving mechanism and control circuitry thereof provided to the gantry and configured to cause, throughout a duration of a magnetic resonance (MR) scan of the object, the PET detector to be positioned along an axial direction of the bore to not overlap an effective imaging region of an MR image.
2 Assignments
0 Petitions
Accused Products
Abstract
A positron emission tomography (PET)-magnetic resonance imaging (MRI) apparatus according to an embodiment includes a gantry having a static magnetic field magnet, a gradient coil, and a radio frequency coil, a PET detector, and a moving mechanism. The static magnetic field magnet generates a static magnetic field in a bore having an approximately cylindrical shape. The gradient coil is disposed on an inner circumference side of the static magnetic field magnet and applies a gradient magnetic field to an object disposed in the bore. The radio frequency coil is disposed on an inner circumference side of the gradient coil and applies a radio frequency magnetic field to the object. The PET detector detects gamma rays emitted from a positron-emitting radionuclide injected into the object. The moving mechanism causes the PET detector in the gantry along the axial direction of the bore.
24 Citations
11 Claims
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1. A positron emission tomography (PET)-magnetic resonance imaging (MRI) apparatus, comprising:
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a gantry including; a static magnetic field magnet configured to generates a static magnetic field in a bore having an approximately cylindrical shape; a gradient coil disposed on an inner circumference side of the static magnetic field magnet and configured to apply a gradient magnetic field to an object disposed in the bore; and a radio frequency coil disposed on an inner circumference side of the gradient coil and configured to apply a radio frequency magnetic field to the object; a PET detector configured to detect gamma rays emitted from a positron-emitting radionuclide injected into the object; and a moving mechanism and control circuitry thereof provided to the gantry and configured to cause, throughout a duration of a magnetic resonance (MR) scan of the object, the PET detector to be positioned along an axial direction of the bore to not overlap an effective imaging region of an MR image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification