Knowledge-Based Segmentation of Attenuation-Relevant Regions of the Head

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This invention presents a computer-aided method and device for accurately identifying and segmenting regions in the human or animal head that significantly attenuate signals in medical imaging, particularly for MRI/PET scans. By assigning tissue types to different regions in the head based on MRI gray level data, then refining these assignments using anatomical knowledge, the method produces a precise segmentation map of relevant attenuating structures (such as bones, air cavities, soft tissue, etc.) for improved attenuation correction in PET images.

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• Improved attenuation correction in PET/MRI hybrid medical imaging systems, particularly for brain and head scans.
• Accurate tissue segmentation in head imaging for neuroscience research.
• Enhanced diagnostic accuracy in detecting and monitoring neurological and oncological diseases.
• Assisting in surgical planning by providing precise anatomical maps of the head.
• Development of advanced image reconstruction algorithms in medical imaging software.

BenefitsContent extracted from patent full text and abstract with AI.

• Provides more accurate correction for signal attenuation in PET images, leading to more reliable diagnostic results.
• Avoids the need for additional CT scans or exposure to extra ionizing radiation, enhancing patient safety.
• Reduces registration and alignment errors between different imaging modalities (MRI and PET) by generating segmentation from MRI alone.
• Improves segmentation of complex structures like bones and air cavities, often difficult to distinguish in MRI, using anatomical knowledge.
• Enables faster, semi-automated or automated image processing and segmentation, saving time for clinical practitioners and researchers.

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Patent Abstract

The present invention relates to a method and a device for determining weakened regions in a body. In particular, the invention relates to a method and device for carrying out magnetic resonance/positron emission tomography measurements using the determined weakened regions.