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Anatomically guided voxel-based partial volume effect correction in brain PET: Impact of MRI segmentation

Daniel Gutierrez, Marie-Louise Montandon, Frédéric Assal, Mohamed Allaoua, Osman Ratib, Karl-Olof Lövblad, Habib Zaidi
2012 Computerized Medical Imaging and Graphics  
The accuracy of anatomically guided partial volume effect correction (PVC) algorithms in brain PET is largely dependent on the performance of MRI segmentation algorithms partitioning the brain into its  ...  PET images were corrected for partial volume effect using GM volume segmented from coregistered MR images.  ...  This study focused on the impact of four MRI brain segmentation algorithms embedded in various version of the SPM software on MRI-guided voxel-based PVC using clinical FDG-PET data.  ... 
doi:10.1016/j.compmedimag.2012.09.001 pmid:23046730 fatcat:kgyfirbe2fg53hxt3lu3iz75na

MR Imaging–Guided Partial Volume Correction of PET Data in PET/MR Imaging

Kjell Erlandsson, John Dickson, Simon Arridge, David Atkinson, Sebastien Ourselin, Brian F. Hutton
2016 PET Clinics  
Synopsis: Partial volume effects (PVEs), are caused by the limited spatial resolution of the PET system, which results in a blurry appearance of the PET images and a reduction in the observed activity  ...  anatomical information from MRI can be utilised for accurate PVC of PET data.  Anatomically guided correction for PVE can be performed as a post-reconstruction procedure or during the image reconstruction  ...  The amyloid and FDG PET images shown were from a study supported by AVID Radiopharamaceuticals (a wholly owned subsidiary of Eli Lilly) and the The National Brain Appeal -  ... 
doi:10.1016/j.cpet.2015.09.002 pmid:26952729 fatcat:elx3pz5t7rculpeihyxteqg7v4

Novel Quantitative Techniques in Hybrid (PET-MR) Imaging of Brain Tumors

Srinivasan Senthamizhchelvan, Habib Zaidi
2013 PET Clinics  
KEYWORDS PET MRI Hybrid imaging Quantification Radiation therapy Image segmentation KEY POINTS Multimodality imaging has become an integral part in the medical management of brain tumors for the past 2  ...  The success of image-guided radiotherapy is directly related to the accuracy of imaging methods in distinguishing tumors from surrounding normal tissues, which makes PET-MR an essential imaging modality  ...  The second issue affecting the accuracy of MR imaging-guided partial volume correction in brain PET is the MR segmentation procedure.  ... 
doi:10.1016/j.cpet.2012.09.007 pmid:27157949 fatcat:bihzfoad3zfbjorgozh4mvb7ei

MRI-Driven PET Image Optimization for Neurological Applications

Yuankai Zhu, Xiaohua Zhu
2019 Frontiers in Neuroscience  
The most unique superiority of PET/MRI is mainly manifested in MRI-based improvement for the inherent limitations of PET, such as motion artifacts, partial volume effect (PVE) and invasive procedure in  ...  Hybrid PET/MRI device can offer motion correction (MC) for PET data through MRI information acquired simultaneously.  ...  FUNDING This work was supported by grants from the National Natural Science Foundation of China (NSFC) (Nos. 81801729, 81671718, and 81873903).  ... 
doi:10.3389/fnins.2019.00782 pmid:31417346 pmcid:PMC6684790 fatcat:cvs6ok7qjrbxhgavgjezzwac5m

Comparative assessment of statistical brain MR image segmentation algorithms and their impact on partial volume correction in PET

Habib Zaidi, Torsten Ruest, Frederic Schoenahl, Marie-Louise Montandon
2006 NeuroImage  
Magnetic resonance imaging (MRI)-guided partial volume effect correction (PVC) in brain positron emission tomography (PET) is now a well-established approach to compensate the large bias in the estimate  ...  A comparative evaluation of three brain MRI segmentation algorithms using simulated and clinical brain MR data was performed, and subsequently their impact on PVC in 18 F-FDG and 18 F-DOPA brain PET imaging  ...  Acknowledgments This work was supported by the Swiss National Science Foundation under grant SNSF 3152A0-102143 and the Research and Development Foundation of Geneva University Hospital under grant PRD  ... 
doi:10.1016/j.neuroimage.2006.05.031 pmid:16828315 fatcat:2vhs447jvfcuzevoux2ixq7hea

PET quantification: strategies for partial volume correction

V. Bettinardi, I. Castiglioni, E. De Bernardi, M. C. Gilardi
2014 Clinical and translational imaging  
This poor SR and the consequent partial volume effect (PVE), affecting image quality and the estimation of radioactivity concentration in small structures, complicate the anatomical localisation of focal  ...  Keywords PET Á Spatial resolution Á Partial volume effect Color figures online at http://link.springer.com/article/10.1007/ s40336-014-0066-y.  ...  However, the accuracy of anatomically guided PVE correction algorithms in PET brain images is largely affected by the performance of MRI segmentation algorithms partitioning the brain into its main classes  ... 
doi:10.1007/s40336-014-0066-y fatcat:7enynfjv4vgubcwrdh5zclyq74

MRI-Guided Partial Volume Correction in Brain PET Imaging: Comparison of Five Algorithms

Gaël Boivin, Vassilis Genoud, Habib Zaidi
2014 Frontiers in biomedical technologies  
Therefore, the resulting partial volume effect (PVE) is a challenging issue for brain PET image interpretation and quantitative analysis.  ...  The resulting images were corrected for PVE using four voxel-based techniques proposed by different groups including Alfano, Muller- Gartner, Meltzer, and Shidahara, and one volume of interest (VOI)-based  ...  MRI-guided Partial Volume Correction in Brain PET  ... 
doaj:cc759d80670f4d2a9c792ab655b3d6f5 fatcat:5mu2yga4pjgq7nbk6hiivozwni

MR-guided joint reconstruction of activity and attenuation in brain PET-MR

Abolfazl Mehranian, Habib Zaidi, Andrew J. Reader
2017 NeuroImage  
The aim of this study is therefore to increase the benefits of MRI information for improving the quantitative accuracy of PET images by exploiting MRI-based anatomical penalty functions to guide the reconstruction  ...  volume effects.  ...  correction of PET data and at the same time robust partial volume correction of the reconstructed PET images.  ... 
doi:10.1016/j.neuroimage.2017.09.006 pmid:28918316 fatcat:7deiohpk2vbi7istglsncftu6u

Structure-Function–Based Quantitative Brain Image Analysis

Habib Zaidi, Marie-Louise Montandon, Frédéric Assal
2010 PET Clinics  
the brain 7 has stimulated the development of dedicated highresolution PET systems. 8, 9 To respond to the requirements of emerging clinical and research applications of correlated anatomic and functional  ...  The development of combined PET-MR systems allowing simultaneous or sequential PET and MR brain imaging is an active research area. 10, 11 This article discusses recent advances in multimodality brain  ...  Figs. 5 and 6 illustrate the impact of PVE correction in functional FDG-PET brain imaging of a patient with probable AD and another patient with probable FTD, respectively. 115 The voxel-based MRI-guided  ... 
doi:10.1016/j.cpet.2010.02.003 pmid:27157670 fatcat:poso4e4m7bduhfqhyupacvlvy4

Advances in Attenuation Correction Techniques in PET

Habib Zaidi, Marie-Louise Montandon, Abass Alavi
2007 PET Clinics  
in PET Attenuation Correction Techniques 197 Fig. 5 . 5 Illustration of the performance of MRI-guided derivation of the attenuation map as compared with CT-based approach for clinical brain positron  ...  The most important causes of metal artifacts are noise, beam hardening, the non-linear partial volume effect, and scatter.  ... 
doi:10.1016/j.cpet.2007.12.002 pmid:27157873 fatcat:24wl5vtvfzcthdzcvdp7jnoilm

Supervised clustering for TSPO PET imaging

Julia Schubert, Matteo Tonietto, Federico Turkheimer, Paolo Zanotti-Fregonara, Mattia Veronese
2021 European Journal of Nuclear Medicine and Molecular Imaging  
The correct implementation of SVCA can provide robust and reproducible estimates of brain TSPO expression.  ...  Unlike other reference region approaches, SVCA does not require specification of an anatomical reference region a priori, which alleviates the limitation of TSPO contamination in anatomically-defined reference  ...  All authors approved the final version of the paper.  ... 
doi:10.1007/s00259-021-05309-z pmid:33779770 pmcid:PMC8712290 fatcat:7nc3hoix3bdz3d3dtqyh36sdc4

Molecular neuroimaging with PET/MRI

V. Garibotto, S. Förster, S. Haller, M. I. Vargas, A. Drzezga
2013 Clinical and translational imaging  
PET and MRI parameters can be systematically combined for diagnostic interpretation and new options concerning partial volume and motion correction can be exploited.  ...  ( 68 Ga-DOTATOC), 18 F-fluorodeoxyglucose ( 18 F-FDG), and 11 C-flumazenil, respectively, and shown that the acquisition of both brain PET and MRI can be performed in a single session on a hybrid PET/  ...  The other authors of this article have no relevant relationships that could be perceived as real or apparent conflicts of interest.  ... 
doi:10.1007/s40336-013-0007-1 fatcat:dematpzskvblfo6jbvee7jcc5y

Multi-atlas attenuation correction supports full quantification of static and dynamic brain PET data in PET-MR

Inés Mérida, Anthonin Reilhac, Jérôme Redouté, Rolf A Heckemann, Nicolas Costes, Alexander Hammers
2017 Physics in Medicine and Biology  
We evaluate a multi-atlas attenuation correction method for brain imaging (MaxProb) on static [ 18 F]FDG PET and, for the first time, on dynamic PET, using the serotoninergic tracer [ 18 F]MPPF.  ...  In simultaneous PET-MR, attenuation maps are not directly available.  ...  We thank our colleagues at the CERMEP Lyon for help in the acquisition and transferring of PET data; and Marjorie Villien for valuable advice on this work.  ... 
doi:10.1088/1361-6560/aa5f6c pmid:28181479 fatcat:wa72i3fomvdexkpbfm72rmfc4q

Vision 20/20: Magnetic resonance imaging-guided attenuation correction in PET/MRI: Challenges, solutions, and opportunities

Abolfazl Mehranian, Hossein Arabi, Habib Zaidi
2016 Medical Physics (Lancaster)  
MRI-guided attenuation correction strategies can be classified in three broad categories: (i) segmentation-based approaches, (ii) atlasregistration and machine learning methods, and (iii) emission/transmission-based  ...  The attenuation map in PET/MRI should ideally be derived from anatomical MR images; however, MRI intensities reflect proton density and relaxation time properties of biological tissues rather than their  ...  Keereman et al. 18 evaluated the effect of errors in the segmentation of lungs and cortical bones due to high level of noise and partial volume effect.  ... 
doi:10.1118/1.4941014 pmid:26936700 fatcat:zjfz3u45bzevxor54jrh45lv74

Iterative Structural and Functional Synergistic Resolution Recovery (iSFS-RR) Applied to PET-MR Images in Epilepsy

J. Silva-Rodriguez, J. Cortes, X. Rodriguez-Osorio, J. Lopez-Urdaneta, J. Pardo-Montero, P. Aguiar, C. Tsoumpas
2016 IEEE Transactions on Nuclear Science  
To this end, PET/MR images were clinically evaluated through visual inspection, atlas-based asymmetry indices (AIs) and SPM analysis, using uncorrected images and images corrected with SFS-RR and iSFS-RR  ...  In this work, a method for the iterative application of SFS-RR (iSFS-RR) was firstly developed and optimized in terms of convergence and input image sizes, and then used for the diagnosis of 18 patients  ...  These values are affected by Partial Volume Effect (PVE), which will limit the accuracy of the correction.  ... 
doi:10.1109/tns.2016.2527826 fatcat:ftlsrhjmfnef3gfhhafl24nhiy
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