Invited Talk by Ilja Bezrukov: MR-Based Attenuation Correction for Whole Body PET/MR – Atlas and
Pattern-Recognition Based Methods
Attenuation Correction(AC) for Whole Body PET/MR scanners is subject of ongoing research. Inhomogeneities in the magnetic field, motion artifacts and high patient variability make it a challenging problem, as there exists no unique conversion of MR intensities to attenuation coefficients.
Three methods for whole body MR-based AC are presented and evaluated:
a segmentation based approach (SEG) that ignores bone, an atlas-based method(AT) and a method that uses atlas registration and pattern recognition(ATPR). Both the AT & ATPR methods identify bone structures. Additionally, an approach for estimating lung density based on PET consistency information is presented.
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| Title: || Invited Talk by Ilja Bezrukov |
| Date: || 23 July 2010 |
| Location: || Seminar Room: MI 03.13.010 |
| Abstract: || MR-Based Attenuation Correction for Whole Body PET/MR – Atlas and Pattern-Recognition Based Methods |
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| Type: || News |
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