Research Topics
Species | Hans HerzogSummaryCountry: Germany Publications
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Publications
[Chemistry and physics of scanners. PET- and SPECT-techniques]Hans Herzog
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Pharm Unserer Zeit 34:468-73. 2005
PET/MRI: challenges, solutions and perspectivesHans Herzog
Institute of Neuroscience and Medicine 4, Forschungszentrum Julich, 52425 Julich, Germany
Z Med Phys 22:281-98. 2012..While describing the present instrumentation for human PET/MRI, this review discusses the challenges and promises related to this new imaging technology...
Combined PET/MR systems: an overview and comparison of currently available optionsH Herzog
Institute of Neuroscience and Medicine 4, Forschungszentrum Julich, Julich, Germany
Q J Nucl Med Mol Imaging 56:247-67. 2012..Based on own experiences and those reported in different publications a number of open issues are discussed. Finally a short comparative analysis on the status and perspectives of human PET/MR imaging is given...
Biodistribution and radiation dosimetry of the A1 adenosine receptor ligand 18F-CPFPX determined from human whole-body PETHans Herzog
Institute of Neuroscience and Biophysics Medicine, Forschungszentrum Juelich GmbH, D 52425, Juelich, Germany
Eur J Nucl Med Mol Imaging 35:1499-506. 2008..The purpose of this study was to determine the biodistribution and the radiation dose of (18)F-CPFPX by whole-body scans in humans...
Motion artifact reduction on parametric PET images of neuroreceptor bindingHans Herzog
Institute of Medicine, Forschungszentrum Juelich, D 52425 Juelich, Germany
J Nucl Med 46:1059-65. 2005..We report the effect of motion on parametric images of the distribution volume ratio (DVR), as well as possible improvements if the dynamic PET data are corrected for head movements...
Assessment of the short-lived non-pure positron-emitting nuclide (120)I for PET imagingH Herzog
Institute of Medicine, Forschungszentrum Juelich, 52425 Juelich, Germany
Eur J Nucl Med Mol Imaging 33:1249-57. 2006..120)I has a positron abundance more than twice that of (124)I and a maximum positron energy of 4 MeV. This study was undertaken to evaluate and characterise the qualitative and quantitative PET imaging of (120)I...
High resolution BrainPET combined with simultaneous MRIH Herzog
Institute of Neuroscience and Medicine 4, Forschungszentrum Julich, 52425 Julich, Germany
Nuklearmedizin 50:74-82. 2011..DISCUSSION, CONCLUSION: Initial experiences with the hybrid MRI/BrainPET indicate a promising basis for further developments of this unique technique allowing simultaneous PET imaging combined with both anatomical and functional MRI...
PET quantitation and imaging of the non-pure positron-emitting iodine isotope 124IH Herzog
Institute of Medicine, Forschungszentrum Jülich GmhH, Germany
Appl Radiat Isot 56:673-9. 2002..We conclude that quantitation of a radiopharmaceutical labelled with 124I is feasible and may be improved by the development of specific corrections...
The current state, challenges and perspectives of MR-PETHans Herzog
Institute of Neuroscience and Medicine 4, Forschungszentrum Julich, 52425 Julich, Germany
Neuroimage 49:2072-82. 2010..This report presents a critical summary of the contributions made to the workshop...
Multiple indicators of age-related differences in cerebral white matter and the modifying effects of hypertensionS Burgmans
Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
Neuroimage 49:2083-93. 2010..These findings indicate that of all examined measures, diffusion-based indices of white matter integrity may be the most sensitive indicators of global and regional declines and vascular damage in the aging brain...
PET imaging problems with the non-standard positron emitters Yttrium-86 and Iodine-124H Herzog
Institute of Medicine, Jülich GmbH Research Center, Julich, Germany
Q J Nucl Med Mol Imaging 52:159-65. 2008....
Preferred stereoselective transport of the D-isomer of cis-4-[18F]fluoro-proline at the blood-brain barrierKarl Josef Langen
Institute of Medicine, Research Centre Julich, Julich, Germany
J Cereb Blood Flow Metab 25:607-16. 2005..Thus, D-Pro in the plasma might be a source of intracerebral L-proline, which has been shown to act as a modulator of excitatory neurotransmission...
Concepts of registration and correction of head motion in positron emission tomographyLutz Tellmann
Institute of Medicine, Forschungszentrum Juelich, D 52425 Juelich, Germany
Z Med Phys 16:67-74. 2006..The effects of motion correction are demonstrated on the basis of phantom measurements and patient data. The influence of motion correction on parametric imaging is described in a receptor study...
Cerebral A1 adenosine receptors (A1AR) in liver cirrhosisChristian Boy
Brain Imaging Centre West, Institute of Medicine, Research Centre Julich, Julich, Germany
Eur J Nucl Med Mol Imaging 35:589-97. 2008..The present study investigates changes of cerebral A(1)AR binding in cirrhotic patients by means of positron emission tomography (PET) and [(18)F]CPFPX, a novel selective A(1)AR antagonist...
Role of O-(2-(18)F-fluoroethyl)-L-tyrosine PET for differentiation of local recurrent brain metastasis from radiation necrosisNorbert Galldiks
Institute of Neuroscience and Medicine INM 3, 4, 5, Forschungszentrum Julich, Julich, Germany
J Nucl Med 53:1367-74. 2012....
In vivo imaging of adenosine A1 receptors in the human brain with [18F]CPFPX and positron emission tomographyAndreas Bauer
Institute of Medicine, Research Center Julich, D 52425 Julich, Germany
Neuroimage 19:1760-9. 2003..In conclusion, in vivo application of [(18)F]CPFPX, a highly potent and selective PET ligand, for the first time allows the imaging of A(1)ARs in the living human brain...
Multimodal imaging utilising integrated MR-PET for human brain tumour assessmentIrene Neuner
Institute of Neuroscience and Medicine 4, INM 4, Forschungszentrum Julich, 52428, Julich, Germany
Eur Radiol 22:2568-80. 2012..The differentiation of post-therapeutic scar tissue, tumour rests and tumour recurrence is challenging. The relationship to structures such as the pyramidal tract to the tumour mass influences the therapeutic neurosurgical approach...
Comparison of (18)F-FET and (18)F-FDG PET in brain tumorsDirk Pauleit
Institute of Neuroscience and Medicine, Forschungszentrum Julich, D 52425 Julich, Germany
Nucl Med Biol 36:779-87. 2009....
Cognition-induced modulation of serotonin in the orbitofrontal cortex: a controlled cross-over PET study of a delayed match-to-sample task using the 5-HT2a receptor antagonist [18F]altanserinHubertus Hautzel
Department of Nuclear Medicine KME, Forschungszentrum Julich, Julich, Germany
Neuroimage 58:905-11. 2011....
Analytical calculation of volumes-of-intersection for iterative, fully 3-D PET reconstructionJürgen J Scheins
Institute of Medicine, Research Center Julich, Julich 52425, Germany
IEEE Trans Med Imaging 25:1363-9. 2006..A comparison of the performance of the reconstruction using LOI weighting and VOI weighting is presented...
Imaging of gliomas with Cis-4-[18F]fluoro-L-prolineKarl J Langen
Institute of Medicine, Research Centre Julich, Julich, Germany
Nucl Med Biol 31:67-75. 2004..Control of MRI suggested tumor growth in these areas at further follow up. Our results indicate that in most gliomas increased cis-FPro uptake is restricted to areas with disruption of the BBB which limits its clinical utility...
Modulation of a brain-behavior relationship in verbal working memory by rTMSFelix M Mottaghy
Department of Nuclear Medicine KME, Heinrich Heine University and Research Center Jülich, D 52426 Jülich, Germany
Brain Res Cogn Brain Res 15:241-9. 2003..The results are discussed along the idea of a short-term plasticity in an active neuronal network that reacts to an rTMS-induced temporary disruption of two different network modules...
Fully-3D PET image reconstruction using scanner-independent, adaptive projection data and highly rotation-symmetric voxel assembliesJ J Scheins
Institute of Neuroscience and Medicine, Forschungszentrum Julich GmbH, D 52425 Julich, Germany
IEEE Trans Med Imaging 30:879-92. 2011..The higher computational effort due to the more accurate image space sampling provides significantly improved images in terms of resolution and noise...
Cerebral haemodynamics during hypo- and hypercapnia: determination with simultaneous 15O-butanol-PET and transcranial Doppler sonographyT D Poeppel
Klinik für Nuklearmedizin KME der Heinrich Heine Universität, Forschungszentrum Julich, 52426 Juelich, Germany e mail
Nuklearmedizin 46:93-100. 2007..The aim of our study was the comparison of vasomotor reactivity assessed with simultaneous TCD and quantitative regional CBF-measurements (rCBF) by PET (serving as the reference method for in-vivo quantification of rCBF)...
Network analysis in episodic encoding and retrieval of word-pair associates: a PET studyB J Krause
Department of Nuclear Medicine, Heinrich Heine University Hospital, Dusseldorf, Germany
Eur J Neurosci 11:3293-301. 1999..Our results further underline the role of the precuneus in episodic memory, not only during retrieval but also during encoding...
The motion aftereffect: more than area V5/MT? Evidence from 15O-butanol PET studiesH Hautzel
Department of Nuclear Medicine, Heinrich Heine University, Dusseldorf, Germany
Brain Res 892:281-92. 2001....
[The (11C) acetate positron emission tomography in prostatic carcinoma. New prospects in metabolic imaging]H Hautzel
Nuklearmedizinische Klinik, Heinrich Heine Universitat Dusseldorf
Urologe A 41:569-76. 2002....
Uptake of cis-4-[18F]fluoro-L-proline in urologic tumorsK J Langen
Institutes of Medicine and Nuclear Chemistry, , , Germany
J Nucl Med 42:752-4. 2001..FDG uptake was seen in one of the three primary RCCs, in the local recurrence of RCC, in the squamous RCC, and in the metastases of penile cancer. CONCLUSION: Cis-FPro appears not to be a promising PET tracer in oncology...
Brain systems engaged in encoding and retrieval of word-pair associates independent of their imagery content or presentation modalitiesD Schmidt
Department of Nuclear Medicine, Heinrich Heine University Hospital, Dusseldorf, Germany
Neuropsychologia 40:457-70. 2002..Finally, our results provide strong evidence that mesial parietal cortex (precuneus) involvement is not restricted to processes involving imagery...
MR-based PET motion correction procedure for simultaneous MR-PET neuroimaging of human brainMarcus Görge Ullisch
Forschungszentrum Julich, Institute of Neuroscience and Medicine 4, Medical Imaging Physics, Forschungszentrum Julich GmbH, Julich, Germany
PLoS ONE 7:e48149. 2012..In vivo motion corrected images show an evident increase of contrast at the basal ganglia and a good visibility of uptake in tiny structures such as superior colliculi...
Analysis and correction of count rate reduction during simultaneous MR-PET measurements with the BrainPET scannerChristoph Weirich
Institute of Neuroscience and Medicine, Forschungszentrum Julich GmbH, Julich, Germany
IEEE Trans Med Imaging 31:1372-80. 2012..For clinical sequences routinely used in hybrid MR-BrainPET measurements, a correction method has been designed, implemented, and evaluated ...
Interdependence of regional and global cerebral blood flow during visual stimulation: an O-15-butanol positron emission tomography studyL J Kemna
, , Germany
J Cereb Blood Flow Metab 21:664-70. 2001..At low PETCO2, the activation-induced flow changes are moderately damped, whereas at high PETCO2, they are nearly lost (deltaCBF (+/-SD): 52% +/- 25%, 68% +/- 22%, 16% +/- 25% at PETCO2 = 20, 40, 70 mm Hg, respectively)...
Does PET/MR in human brain imaging provide optimal co-registration? A critical reflectionUwe Pietrzyk
Institute of Neurosciences and Medicine, Forschungszentrum Julich GmbH, 52425 Julich, Germany
MAGMA 26:137-47. 2013..This paper will briefly summarize the current status of PET/MR within the framework of developments for image co-registration and discuss current limitations and future perspectives...
Hybrid 18F-FDG PET-MRI of the hand in rheumatoid arthritis: initial resultsFalk Miese
Institute of Neuroscience and Medicine 4, Forschungszentrum Julich GmbH, Julich, Germany
Clin Rheumatol 30:1247-50. 2011..Maximum SUV of 3.1 was noted. In RA, true hybrid 18F-FDG PET-MRI of the hand is technically feasible and bears the potential to directly visualize inflammation...
Neural responses to the production and comprehension of syntax in identical utterancesPeter Indefrey
Institute of Medicine, Research Center Julich, Germany
Brain Lang 89:312-9. 2004....
Acute S-ketamine application does not alter cerebral [18F]altanserin binding: a pilot PET study in humansA Matusch
Institute of Medicine and Brain Imaging Center West, Research Center Juelich, Juelich, Germany
J Neural Transm 114:1433-42. 2007..Advantageously, the stability of [(18)F]altanserin PET towards acute influences is a prerequisite for its future use to detect sub-acute and chronic effects of ketamine...
Implication of 2-18fluor-2-deoxyglucose positron emission tomography in the follow-up of Hürthle cell thyroid cancerMichail Plotkin
Department of Nuclear Medicine, Heinrich Heine University Hospital Dusseldorf, Germany
Thyroid 12:155-61. 2002..This study supports the efficiency of FDG-PET in the follow-up of HTC...
Activation differences in observation of hand movements for imitation or velocity judgementBoris Suchan
Institute of Cognitive Neuroscience, Department of Neuropsychology, Ruhr University Bochum, Germany
Behav Brain Res 188:78-83. 2008..Thus, movement observation recruits non-overlapping cortical networks, depending on the information attended to which are characterised by a dorsal ventral dissociation...
Hemispheric dissociation of visual-pattern processing and visual rotationBoris Suchan
Department of Clinical Neuropsychology, Ruhr University of Bochum, Universitatsstr 150, 44780 Bochum, Germany
Behav Brain Res 136:533-44. 2002..The present results suggest a hemispheric dissociation of fronto-parietal circuits with a left dominance for visual pattern processing like storage and a right dominance for visuospatial processing...
Whole-body distribution and dosimetry of O-(2-[18F]fluoroethyl)-L-tyrosineDirk Pauleit
Clinic of Nuclear Medicine, Heinrich Heine University Dusseldorf, Dusseldorf, Germany
Eur J Nucl Med Mol Imaging 30:519-24. 2003..5.3% ID/h). The highest absorbed dose was found for the urinary bladder wall. The effective dose according to ICRP 60 was 16.5 micro Sv/MBq for adults, which would lead to an effective dose of 6.1 mSv in a PET study using 370 MBq FET...
Network for auditory intrinsic alertness: a PET studyWalter Sturm
Neurological Clinic, Neuropsychology, RWTH Aachen, University Hospital, Technical University Aachen, Pauwelsstrasse 30, D 52074, Aachen, Germany
Neuropsychologia 42:563-8. 2004....
PET identifies transitional metabolic change in the spinal cord following a subthreshold dose of irradiationOlga Esik
Department of Oncotherapy, Pécs University of Sciences, Pecs, Hungary
Pathol Oncol Res 10:42-6. 2004....
Decreased prefrontal 5-HT2A receptor binding in subjects at enhanced risk for schizophreniaRene Hurlemann
Department of Psychiatry, University of Bonn, Sigmund Freud Str 25, 53105 Bonn, Germany
Anat Embryol (Berl) 210:519-23. 2005....
PET with O-(2-18F-Fluoroethyl)-L-Tyrosine in peripheral tumors: first clinical resultsDirk Pauleit
Clinic of Nuclear Medicine, Heinrich Heine University Dusseldorf, Dusseldorf, Germany
J Nucl Med 46:411-6. 2005..O-(2-18F-Fluoroethyl)-L-Tyrosine (18F-FET) PET has shown promising results in brain tumor diagnosis. The aim of this prospective study was to evaluate 18F-FET PET in comparison with 18F-FDG PET in patients with peripheral tumors...
Subthalamic stimulation modulates cortical control of urinary bladder in Parkinson's diseaseJan Herzog
Department of Neurology, Christian Albrechts University, Kiel, Germany
Brain 129:3366-75. 2006..The data suggest that STN-DBS ameliorates bladder dysfunction and that this modulation may result from facilitated processing of afferent bladder information...
Direct Fourier method in 3D PET using accurately determined frequency sample distributionYingbo Li
Fac. of Electr, Inf. and Media Eng, Wuppertal Univ
Conf Proc IEEE Eng Med Biol Soc 1:3787-90. 2006..Direct Fourier method (DFM) is applied for the reconstruction due to its speed advantage. Simulation studies are accomplished to verify the imposed assertion...
Improved sensory gating of urinary bladder afferents in Parkinson's disease following subthalamic stimulationJan Herzog
Department of Neurology, Christian Albrechts University Kiel, Schittenhelmstrasse 10, 24105 Kiel, Germany
Brain 131:132-45. 2008..Furthermore, this is the first imaging study, which shows an effect of STN-DBS on sensory gating in PD patients and its neural basis...
Neural correlates of visuospatial imageryBoris Suchan
Department of Clinical Neuropsychology, Ruhr University of Bochum, Universitatsstr 150, 44780, Bochum, Germany
Behav Brain Res 131:163-8. 2002..Since these activation areas are close to those in imagery of movement trajectories, we concluded that they appear to be a subsystem for processing mental visuospatial images...
Common and differential neural mechanisms supporting imitation of meaningful and meaningless actionsRaffaella I Rumiati
Cognitive Neuroscience Sector, Scuola Internazionale Superiore di Studi Avanzati SISSA, Trieste, Italy
J Cogn Neurosci 17:1420-31. 2005..In contrast, imitation of meaningful actions differentially involves semantic processing as evidenced by activation of areas belonging to the ventral stream...
Functional reorganisation in patients with right hemisphere stroke after training of alertness: a longitudinal PET and fMRI study in eight casesWalter Sturm
Neurological Clinic, University Hospital RWTH Aachen, Pauwelsstrasse 30, D 52074 Aachen, Germany
Neuropsychologia 42:434-50. 2004....
Lexical decision of nonwords and pseudowords in humans: a positron emission tomography studyKarsten Specht
Division of Neurolinguistics, Neurology Department, University Hospital Aachen, Aachen, Germany
Neurosci Lett 345:177-81. 2003..The data support the notion that the lexical decision during a nonword task is mainly based on a phonological discrimination process, whereas a pseudoword task more strongly requires lexical access resulting in activation of BA 47...
Smoking upregulates alpha4beta2* nicotinic acetylcholine receptors in the human brainUllrich Wullner
Department of Neurology, University Bonn, Sigmund Freud Strasse 25, 53105 Bonn, Germany
Neurosci Lett 430:34-7. 2008..The up-regulation of alpha4beta2* nAChR upon chronic nicotine exposure via tobacco smoking incorporates subcortical brain regions which may play an important role in nicotine addiction...
