Camera-supported movement detection for movement compensation in real time in magnetic resonance imaging
First Claim
1. An apparatus for the compensation of movements of a patient during MRT measurements in real time, the apparatus comprising at least one MRT-compatible camera, at least one evaluation unit and at least one connection for data exchange with an MRT appliance, wherein the MRT-compatible camera comprises at least one image sensor module for recording image data from which the patient'"'"'s movement can be calculated, at least one interface module for the transmission of the image data and/or position data—
- calculated from the image data—
of at least one marking element connected to the patient and at least one micro-controller module for calculating the position data from the image data, wherein the MRT-compatible camera is arranged in the interior of the MRT appliance inside a bore in the MRT appliance and the micro-controller module is integrated in a screened housing of the MRT-compatible camera to prevent interaction with the MRT appliance and the radiation thereof.
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Abstract
The invention relates to a method for compensating patient movements in MRI scans in real time and to a device suitable for carrying out said method. The method involves the following steps: optically sensing a marking element (5) connected to a patient (3) by means of an image sensor module (7) of an MRI-compatible camera (2) which is positioned inside an MRI device; transferring the image data detected by the image sensor module (7) to a micro-controller module (11) which is integrated in the MRI-compatible camera (2); calculating position data of the marking element (5) in the micro-controller module (11); and transmitting the position data to an external analyzing unit or to the MRI device in real time.
26 Citations
17 Claims
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1. An apparatus for the compensation of movements of a patient during MRT measurements in real time, the apparatus comprising at least one MRT-compatible camera, at least one evaluation unit and at least one connection for data exchange with an MRT appliance, wherein the MRT-compatible camera comprises at least one image sensor module for recording image data from which the patient'"'"'s movement can be calculated, at least one interface module for the transmission of the image data and/or position data—
- calculated from the image data—
of at least one marking element connected to the patient and at least one micro-controller module for calculating the position data from the image data, wherein the MRT-compatible camera is arranged in the interior of the MRT appliance inside a bore in the MRT appliance and the micro-controller module is integrated in a screened housing of the MRT-compatible camera to prevent interaction with the MRT appliance and the radiation thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- calculated from the image data—
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12. A method of compensating the movements of a patient during MRT measurements in real time, comprising at least the following steps:
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optically detecting a marking element connected to the patient using an image sensor module of an MRT-compatible camera positioned in the interior of an MRT appliance, transmitting image data of the image sensor module to a micro-controller module integrated in a screened housing of the MRT-compatible camera to prevent interaction with the MRT appliance and the radiation thereof, calculating position data of the marking element connected to the patient in the micro-controller module in the interior of the MRT appliance inside a bore in the MRT appliance, and forwarding the position data to an external evaluation unit or the MRT appliance in real time. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification