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SEGMENTATION OF MAGNETIC RESONANCE USING TRANSMISSION DATA WHEN FORMING HYBRID NUCLEAR/MAGNETIC RESONANCE IMAGES
SEGMENTATION OF MAGNETIC RESONANCE USING TRANSMISSION DATA WHEN FORMING HYBRID NUCLEAR/MAGNETIC RESONANCE IMAGES
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机译：形成混合核/磁共振图像时使用传输数据对磁共振进行分段
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摘要
FIELD: physics.;SUBSTANCE: system (10) for correcting anatomical images includes: a magnetic resonance (MR) imager (12) which obtains MR image data (14) of a subject (60) during scanning to collect MR data; a nuclear scanner (20) which obtains nuclear image data (23) of a subject (60) during scanning to collect nuclear data, and simultaneously measures transmission data (22) from a radiation source (18) located in the investigation region of the nuclear scanner (20); and a processor which: generates an attenuation correction (AC) map (16) from the MR image data (14); iteratively adjusts the AC map (16) to form an improved AC map (32) using the measured transmission data (22); and makes corrections to image nuclear data (23) based on attenuation using the improved AC map (32).;EFFECT: ensuring accuracy of the attenuation correction map, eliminating the uncertainty between air elements of the three-dimensional image and bone elements of the three-dimensional image in a magnetic resonance-based attenuation correction map.;15 cl, 5 dwg
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