Journal Article

FZJ-2013-01090

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png MRI for attenuation correction in PET: methods and challenges

Wagenknecht, G. (Corresponding author)ZEA-2*FZJ* ; Kaiser, H.-J. ; Mottaghy, F. M. ; Herzog, H.FZJ*

2013
Springer Heidelberg

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Please use a persistent id in citations: http://hdl.handle.net/2128/4998  doi:10.1007/s10334-012-0353-4

Abstract: Abstract In current combined PET/MR systems, PET attenuation correction is based on MRI, since the small bore insideMRI systems and the strongmagnetic field do not permit a rotating PET transmission source or a CT device to be integrated. Unlike CTmeasurements in PET/CT scanners, the MR signal is not directly correlated to tissue density andthus cannot be converted by a simple transformation of intensity values. Various approaches have been developed based on templates, atlas information, direct segmentation of T1-weighted MR images, or segmentation of images from special MR sequences. The advantages and disadvantages of these approaches as well as additional challenges will be discussed in this review.

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Contributing Institute(s):

1. Zentralinstitut für Elektronik (ZEL)
2. Physik der Medizinischen Bildgebung (INM-4)
3. Zentralinstitut für Elektronik (ZEA-2)

Research Program(s):

1. 332 - Imaging the Living Brain (POF2-332) (POF2-332)

Appears in the scientific report 2013

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Database coverage:
; ; Current Contents - Clinical Medicine ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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