Method for motion tracking of interventional instruments with MR imaging
AssigneeSiemens Aktiengesellschaft
InventorMichael Wendt
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Abstract
In a method for motion tracking an Interventional Instrument with MR Imaging, the interventional instrument is guided on a motion path in a first direction, raw datasets are acquired from nuclear magnetic resonance signals frequency-encoded in the first direction and wavelet-encoded in a second direction perpendicular to said first direction, the raw datasets are updated with a repetition rate only for the wavelet-encodings that are allocated to the region of the motion path, and chronologically-resolved images are acquired from the raw datasets.
Claims13
A method for tracking the motion of an interventional instrument in a patient using magnetic resonance imaging, comprising:
- guiding an interventional instrument in a patient along a motion path in a first direction;
- acquiring raw datasets from nuclear magnetic resonance signals of an image region in said subject, including at least a part of said motion path, from nuclear magnetic resonance signals which are frequency-encoded in a first direction and wavelet-encoded in a second direction perpendicular to the first direction;
- updating the raw datasets with a repetition rate only for wavelet-encoded data allocated to a region of the motion path in said image region;
- and
- generating chronologically-resolved images from the raw data sets.
Dependencies are inferred from the claim text.