Alexander Hammers

20.1k citations

195 papers · 11.5k indexed · 4 hit papers · h-index 54

Impact in

Neurology top 0.2%
Psychiatry and Mental health top 0.2%
- Dementia and Cognitive Impairment Research

Papers in

Psychiatry and Mental health 66
- Epilepsy research and treatment 45
Radiology, Nuclear Medicine and Imaging 93
- Medical Imaging Techniques and Applications 55
- Advanced MRI Techniques and Applications 51
- Advanced Neuroimaging Techniques and Applications 24
- Radiomics and Machine Learning in Medical Imaging 22

Co-authors: Rolf A. Heckemann Daniel Rueckert Paul Aljabar Joseph V. Hajnal David J. Brooks John S. Duncan Federico Turkheimer Matthias J. Koepp
Journals: NeuroImage (38 papers)Brain (11 papers)Journal of Cerebral Blood Flow & Metabolism (7 papers)IEEE Transactions on Radiation and Plasma Medical Sciences (7 papers)PLoS ONE (6 papers)
Partner nations: United Kingdom France Germany

In The Last Decade

Alexander Hammers

188 papers receiving 11.3k citations

Hit Papers

align trajectories log scale

Multi-atlas based segmentation of brain images: Atlas selection and its effect on accuracy 2009 · 663 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2009 NeuroImage
2006 NeuroImage
2005 Neurobiology of Disease
2003 Human Brain Mapping

Peers

Countries citing papers authored by Alexander Hammers

Since Specialization

Citations

This map shows the geographic impact of Alexander Hammers's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Alexander Hammers with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alexander Hammers more than expected).

Fields of papers citing papers by Alexander Hammers

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alexander Hammers. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Alexander Hammers. The network helps show where Alexander Hammers may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Alexander Hammers, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Alexander Hammers Line = papers co-authored together Alexander Hammers links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Single-Modality Supervised Joint PET-MR Image Reconstruction IEEE Transactions on Radiation and Plasma Medical Sciences ·Yusuf Adekola Wahab, Julia A. Schnabel, Alexander Hammers, Andrew J. Reader	2023	7
2	Pre-Training, Transfer Learning and Pretext Learning for a Convolutional Neural Network Applied to Automated Assessment of Clinical PET Image Quality IEEE Transactions on Radiation and Plasma Medical Sciences ·Field Richard, Radhouène Neji, Joel Dunn, Colm J. McGinnity, K Yasui, Andrew J. Reader, Alexander Hammers	2022	9
3	Metabolic patterns in brain 18F-fluorodeoxyglucose PET relate to aetiology in paediatric dystonia Brain ·Jingying Ouyang, 裕一磯崎, Verity M. McClelland, Apostolos Papandreou, Ata Siddiqui, Daniel E. Lumsden, Margaret Kaminska, Éric Guedj, Alexander Hammers, Jean‐Pierre Lin	2022	6
4	Uncertainty analysis of MR-PET image registration for precision neuro-PET imaging NeuroImage ·Paweł Markiewicz, Julian C. Matthews, John Ashburner, David M. Cash, David L. Thomas, Enrico De Vita, Anna Barnes, M. Jorge Cardoso, Marc Modat, Richard Brown, Kris Thielemans, Casper da Costa‐Luis, Isadora Lopes Alves, Juan Domingo Gispert, Mark E. Schmidt, Paul Marsden, Alexander Hammers, Sébastien Ourselin, Frederik Barkhof	2021	10
5	Αlpha 5 subunit-containing GABAA receptors in temporal lobe epilepsy with normal MRI Brain Communications ·Colm J. McGinnity, Daniela A. Riaño Barros, Rainer Hinz, James F. Myers, Siti N. Yaakub, Benish, Rolf A. Heckemann, Jane de Tisi, John S. Duncan, Josemir W. Sander, Anne Lingford‐Hughes, Matthias J. Koepp, Alexander Hammers	2021	7
6	Evaluation of [13N]ammonia positron emission tomography as a potential method for quantifying glutamine synthetase activity in the human brain EJNMMI Research ·Alice Egerton, Joel Dunn, Nisha Singh, Zilin Yu, Jim O’Doherty, Ivan Koychev, Jessica Webb, Simon Claridge, Federico Turkheimer, Paul Marsden, Alexander Hammers, Antony D. Gee	2020	3
7	Imaging localized neuronal activity at fast time scales through biomechanics Science Advances ·Samuel Patz, Daniel Bednář, Katharina Schregel, Terry Mulhern, Miklós Palotai, Paul E. Barbone, Ben Fabry, Alexander Hammers, Sverre Holm, Sebastian Kozerke, David Nordsletten, Ralph Sinkus	2019	34
8	Spatially Compact MR-Guided Kernel EM for PET Image Reconstruction IEEE Transactions on Radiation and Plasma Medical Sciences ·Juliana Rodrigues Rocha, Martín A. Belzunce, Sam Ellis, Colm J. McGinnity, Alexander Hammers, Andrew J. Reader	2018	22
9	Simplifying [18F]GE-179 PET: are both arterial blood sampling and 90-min acquisitions essential? EJNMMI Research ·Colm J. McGinnity, Daniela A. Riaño Barros, William Trigg, David J. Brooks, Rainer Hinz, John S. Duncan, Matthias J. Koepp, Alexander Hammers	2018	2
10	MR-Guided Kernel EM Reconstruction for Reduced Dose PET Imaging IEEE Transactions on Radiation and Plasma Medical Sciences ·Juliana Rodrigues Rocha, Abolfazl Mehranian, Martín A. Belzunce, Sam Ellis, Colm J. McGinnity, Alexander Hammers, Andrew J. Reader	2017	52
11	Synergistic PET and SENSE MR Image Reconstruction Using Joint Sparsity Regularization IEEE Transactions on Medical Imaging ·Abolfazl Mehranian, Martín A. Belzunce, Claudia Prieto, Alexander Hammers, Andrew J. Reader	2017	32
12	Evaluation of several multi-atlas methods for PSEUDO-CT generation in brain MRI-PET attenuation correction Inès Mérida, Nicolas Costes, Rolf A. Heckemann, Alexander Drzezga, Stefan Förster, Alexander Hammers	2015	15
13	NMDA receptor binding in focal epilepsies Journal of Neurology Neurosurgery & Psychiatry ·Colm J. McGinnity, Matthias J. Koepp, Alexander Hammers, Daniela A. Riaño Barros, Ronit Pressler, Sajinder K. Luthra, Paul A. Jones, William Trigg, J. Zhang, Mark R. Symms, David J. Brooks, John S. Duncan	2015	35
14	Test–retest reproducibility of cannabinoid-receptor type 1 availability quantified with the PET ligand [11C]MePPEP NeuroImage ·Daniela A. Riaño Barros, Colm J. McGinnity, Lula Rosso, Rolf A. Heckemann, Oliver Howes, David J. Brooks, John S. Duncan, Federico Turkheimer, Matthias J. Koepp, Alexander Hammers	2014	16
15	Amygdalar Atrophy in Early Alzheimer’s Disease Current Alzheimer Research ·Dr Mandavi Agarwal, Rolf A. Heckemann, Хацко Владимир Власович, Olivier Moreaud, Samuel H. Joseloff, Alexandre Krainik, Alexander Hammers, Monica Baciu, Pascal Hot, Yang Zhen	2014	43
16	Voxel-Based Analysis of Asymmetry Index Maps Increases the Specificity of ¹⁸F-MPPF PET Abnormalities for Localizing the Epileptogenic Zone in Temporal Lobe Epilepsies Journal of Nuclear Medicine ·Adrien Didelot, François Mauguı̀ere, Jérôme Redouté, Sandrine Bouvard, Amélie Lothe, Anthonin Reilhac, Alexander Hammers, Nicolas Costes, Philippe Ryvlin	2010	37
17	PET imaging of brain 5-HT1A receptors in the preoperative evaluation of temporal lobe epilepsy Brain ·Adrien Didelot, Philippe Ryvlin, Amélie Lothe, Isabelle Merlet, Alexander Hammers, François Mauguı̀ere	2008	51
18	Correlation of memory function with binding of [C-11]CNS 5161, a novel putative NMDA ion channel PET ligand NeuroImage ·Alexander Hammers, Radiana Syamsu, David J. Brooks, Haryanto Ikip pgri semarang, R. Yates Nicole, Geert Bouwmans, A. J Pierabella, John S. Duncan, 美加五十嵐	2004	5
19	Cortical dysfunction in non-demented Parkinson's disease patients: A combined 31P-MRS and 18FDG-PET study Brain ·Joshua Shulman, Simon D. Taylor‐Robinson, К. Ray Chaudhuri, Jimmy D. Bell, C. Labbé, Vincent J. Cunningham, Matthias J. Koepp, Alexander Hammers, Robin G. Morris, N. Turjanski, David J. Brooks	2000	178
20	Cortical dysfunction in non-demented Parkinson's disease patients. A combined 31P-MRS and 18FDG-PET study Brain Research ·Joshua Shulman, Simon D. Taylor‐Robinson, К. Ray Chaudhuri, Jimmy D. Bell, C. Labbé, Vincent J. Cunningham, Matthias J. Koepp, Alexander Hammers, Richard Morris, N. Turjanski, David J. Brooks	2000	6

About Alexander Hammers

Alexander Hammers is a scholar working on Psychiatry and Mental health, Radiology, Nuclear Medicine and Imaging, Cellular and Molecular Neuroscience, Neurology and Computer Vision and Pattern Recognition, having authored 195 papers that have together received 11.5k indexed citations. Recurring topics across this work include Medical Imaging Techniques and Applications (55 papers), Advanced MRI Techniques and Applications (51 papers), Epilepsy research and treatment (45 papers), Neuroscience and Neuropharmacology Research (43 papers), Medical Image Segmentation Techniques (31 papers), Advanced Neuroimaging Techniques and Applications (24 papers), Radiomics and Machine Learning in Medical Imaging (22 papers) and Functional Brain Connectivity Studies (20 papers). The work is most often cited by research in Neurology (2.1k citations), Psychiatry and Mental health (3.0k citations), Radiology, Nuclear Medicine and Imaging (3.7k citations), Cellular and Molecular Neuroscience (2.2k citations) and Neurology (1.8k citations). Alexander Hammers has collaborated with scholars based in United Kingdom, France and Germany. Frequent co-authors include Rolf A. Heckemann, Daniel Rueckert, Paul Aljabar, Joseph V. Hajnal, David J. Brooks, John S. Duncan, Federico Turkheimer, Matthias J. Koepp, Nicola Pavese and Louis Lemieux. Their work appears in journals such as NeuroImage, Brain, Journal of Cerebral Blood Flow & Metabolism, IEEE Transactions on Radiation and Plasma Medical Sciences and PLoS ONE.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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