Image reassembly system and method applied to magnetic resonance imaging
AssigneeYou-Yin Chen
InventorFeng-Mao Chiu
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Abstract
The present invention discloses an image reassembly system, method, and computer-readable storage medium applicable to magnetic resonance imaging (MRI). The image reassembly method includes a pre-scanning process and a formal scanning process. In the pre-scanning process, a self-modeled profile related to a subject is acquired. The self-modeled profile is used for calibrating a free-breathing signal obtained during the formal scanning. A reassembled image volume is generated by selecting required corresponding image volume data through the establishment of a reassembled reference state table.
Claims9
An image reassembly method applied to magnetic resonance imaging, comprising:
- a pre-scanning process, comprising:
- obtaining a pre-scan breathing curve associated with a subject from a breath detector;
- obtaining a navigator profile associated with a target tissue of the subject along a sagittal direction while obtaining a breathing curve profile;
- correcting a time difference of the pre-scan breathing curve according to a navigator profile, wherein the time difference between the pre-scan breathing curve and the navigator profile is obtained by aligning the pre-scan breathing curve and the navigator profile through peak detection;
- and
- generating a calibrated respiratory waveform according to the average of the pre-scan breathing curve;
- and
- a formal scanning process, comprising:
- obtaining a free-breathing curve associated with the subject from the breath detector, which has a plurality of respiratory waveforms;
- utilizing the calibrated respiratory waveform to refill the respiratory waveforms of the free-breathing curve for generating a free-breathing signal;
- generating a reassembled reference state table according to the free-breathing signal;
- obtaining a plurality of image volume data of the target tissue of the subject according to the reassembled reference state table;
- and
- retrieving the relevant image volume data based on the reassembled reference state table to generate a reassembled image volume.
An image reassembly system for reassembling an image associated with a target tissue, comprising:
- a computer device configured to perform the processes, comprising:
- a pre-scanning process, comprising:
- obtaining a pre-scan breathing curve associated with a subject from a breath detector;
- obtaining a navigator profile associated with a target tissue of the subject along a sagittal direction while obtaining a breathing curve profile;
- correcting a time difference of the pre-scan breathing curve according to a navigator profile, wherein the time difference between the pre-scan breathing curve and the navigator profile is obtained by aligning the pre-scan breathing curve and the navigator profile through peak detection;
- and
- generating a calibrated respiratory waveform according to the average of the pre-scan breathing curve;
- and
- a formal scanning process, comprising:
- obtaining a free-breathing curve associated with the subject from the breath detector, which has a plurality of respiratory waveforms;
- utilizing the calibrated respiratory waveform to refill the respiratory waveforms of the free-breathing curve for generating a free-breathing signal;
- generating a reassembled reference state table according to the free-breathing signal;
- obtaining a plurality of image volume data of the target tissue of the subject according to the reassembled reference state table;
- and
- retrieving the relevant image volume data based on the reassembled reference state table to generate a reassembled image volume.
Dependencies are inferred from the claim text.