Magnetic Resonance-Based Attenuation Correction and Scatter Correction in Neurological Positron Emission Tomography/Magnetic Resonance Imaging—Current Status With Emerging Applications

• Main Authors: Jarmo Teuho, Angel Torrado-Carvajal, Hans Herzog, Udunna Anazodo, Riku Klén, Hidehiro Iida, Mika Teräs
• Format: Article
• Language: English
• Published: Frontiers Media S.A. 2020-01-01
• Series: Frontiers in Physics
• Subjects: positron emission tomography/magnetic resonance imaging; attenuation correction; scatter correction; positron emission tomography image quantification; magnetic resonance-based attenuation correction
• Online Access: https://www.frontiersin.org/article/10.3389/fphy.2019.00243/full
• ISSN: 2296-424X

In this review, we will summarize the past and current state-of-the-art developments in attenuation and scatter correction approaches for hybrid positron emission tomography (PET) and magnetic resonance (MR) imaging. The current status of the methodological advances for producing accurate attenuation and scatter corrections on PET/MR systems are described, in addition to emerging clinical and research applications. Future prospects and potential applications that benefit from accurate data corrections to improve the quantitative accuracy and clinical applicability of PET/MR are also discussed. Novel clinical and research applications where improved attenuation and scatter correction methods are beneficial are highlighted.