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A whole-body FDG PET/MR atlas for multiparametric voxel-based analysis
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- Sjöholm, Therese (author)
- Uppsala universitet,Radiologi
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- Ekström, Simon (author)
- Uppsala universitet,Radiologi
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- Strand, Robin (author)
- Uppsala universitet,Avdelningen för visuell information och interaktion,Bildanalys och människa-datorinteraktion,Radiologi
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- (creator_code:org_t)
- 2019-04-16
- 2019
- English.
- In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 9
- Journal article (peer-reviewed)
Abstract
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- Quantitative multiparametric imaging is a potential key application for Positron Emission Tomography/Magnetic Resonance (PET/MR) hybrid imaging. To enable objective and automatic voxel-based multiparametric analysis in whole-body applications, the purpose of this study was to develop a multimodality whole-body atlas of functional 18F-fluorodeoxyglucose (FDG) PET and anatomical fat-water MR data of adults. Image registration was used to transform PET/MR images of healthy control subjects into male and female reference spaces, producing a fat-water MR, local tissue volume and FDG PET whole-body normal atlas consisting of 12 male (66.6 +/- 6.3 years) and 15 female (69.5 +/- 3.6 years) subjects. Manual segmentations of tissues and organs in the male and female reference spaces confirmed that the atlas contained adequate physiological and anatomical values. The atlas was applied in two anomaly detection tasks as proof of concept. The first task automatically detected anomalies in two subjects with suspected malignant disease using FDG data. The second task successfully detected abnormal liver fat infiltration in one subject using fat fraction data.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk bildbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Image Processing (hsv//eng)
Keyword
- Computerized Image Processing
- Datoriserad bildbehandling
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- ref (subject category)
- art (subject category)
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- Sjöholm, Therese
- Ekström, Simon
- Strand, Robin
- Ahlström, Håkan
- Lind, Lars
- Malmberg, Filip
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- Kullberg, Joel
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- ENGINEERING AND TECHNOLOGY
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