Jaap Valk

9.2k total citations · 2 hit papers
116 papers, 6.8k citations indexed

About

Jaap Valk is a scholar working on Radiology, Nuclear Medicine and Imaging, Pediatrics, Perinatology and Child Health and Surgery. According to data from OpenAlex, Jaap Valk has authored 116 papers receiving a total of 6.8k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Radiology, Nuclear Medicine and Imaging, 20 papers in Pediatrics, Perinatology and Child Health and 19 papers in Surgery. Recurrent topics in Jaap Valk's work include Advanced MRI Techniques and Applications (30 papers), Fetal and Pediatric Neurological Disorders (15 papers) and Cerebrospinal fluid and hydrocephalus (10 papers). Jaap Valk is often cited by papers focused on Advanced MRI Techniques and Applications (30 papers), Fetal and Pediatric Neurological Disorders (15 papers) and Cerebrospinal fluid and hydrocephalus (10 papers). Jaap Valk collaborates with scholars based in Netherlands, United States and Germany. Jaap Valk's co-authors include Frederik Barkhof, Philip Scheltens, Marjo S. van der Knaap, Didier Leys, M Steinling, Patrick Vermersch, Erik Ch. Wolters, J. Nauta, Michaël Kuiper and H. C. Weinstein and has published in prestigious journals such as NeuroImage, Brain and Neurology.

In The Last Decade

Jaap Valk

114 papers receiving 6.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Atrophy of medial temporal lobes on MRI in "probable" Alzheimer's disease and normal ageing: diagnostic value and neuropsychological correlates.

1992 1.3k citations Frederik Barkhof, Jaap Valk et al. profile →
A semiquantative rating scale for the assessment of signal hyperintensities on magnetic resonance imaging

1993 787 citations Frederik Barkhof, Jaap Valk et al. profile →

Peers

Countries citing papers authored by Jaap Valk

Since Specialization

Citations

This map shows the geographic impact of Jaap Valk'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 Jaap Valk with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jaap Valk more than expected).

Fields of papers citing papers by Jaap Valk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jaap Valk. 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 Jaap Valk. The network helps show where Jaap Valk may publish in the future.

Co-authorship network of co-authors of Jaap Valk

This figure shows the co-authorship network connecting the top 25 collaborators of Jaap Valk. A scholar is included among the top collaborators of Jaap Valk based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Jaap Valk. Jaap Valk is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Posttraumatic tremor without parkinsonism in a patient with complete contralateral loss of the nigrostriatal pathway 2002 ·Movement Disorders ·Jan Zijlmans, Jan Booij, Jaap Valk, Andrew J. Lees, M.W.I.M. Horstink	5
2	Magnetic resonance imaging in children with anorectal malformations: Embryologic implications 2002 ·Journal of Pediatric Surgery ·Rutger A. J. Nievelstein, A. Vos, Jaap Valk, (unknown)	29
3	Value of fluid-attenuated inversion recovery sequences in early MRI of the brain in neonates with a perinatal hypoxic-ischemic encephalopathy 2000 ·European Radiology ·L.T.L. Sie, Frederik Barkhof, H N Lafeber, Jaap Valk, Marjo S. van der Knaap	7
4	Cerebrotendinous Xanthomatosis: The Spectrum of Imaging Findings and the Correlation with Neuropathologic Findings 2000 ·Radiology ·Frederik Barkhof, Aad Verrips, Pieter Wesseling, Marjo S. van der Knaap, Baziel G.M. van Engelen, F.J.M. Gabreëls, A. Keyser, Ron A. Wevers, Jaap Valk	122
5	Quantitative computer-assisted analysis vs. visual estimation of MR imaging response of brain metastases to radiotherapy 1997 ·Magnetic Resonance Imaging ·Martin Taphoorn, (unknown), Frederik Barkhof, Jan G.E. Weerts, Jaap Valk, Alavi Karim, J.J. Heimans	3
6	Temporal lobe epilepsy: the various MR appearances of histologically proven mesial temporal sclerosis. 1994 ·American Journal of Neuroradiology ·Linda C. Meiners, (unknown), Gerard H. Jansen, (unknown), Theodoor D. Witkamp, L. M. P. Ramos, Jaap Valk, R. M. Chr. Debets, Alexander C. van Huffelen, (unknown)	92
7	The role of magnetic resonance in the evaluation of functional results after CABG/PTCA 1993 ·International journal of cardiac imaging ·Albert C. van Rossum, Michel A. Galjee, Teddo Doesburg, Mark B.M. Hofman, Jaap Valk	16
8	Embryonic development of the mammalian caudal Neural Tube 1993 ·Teratology ·Rutger A. J. Nievelstein, N. G. Hartwig, Chr. Vermeij‐Keers, Jaap Valk	99
9	A double-blind, comparative study of gadodiamide injection and gadopentetate dimeglumine in MRI of the central nervous system 1993 ·Neuroradiology ·Jaap Valk, Paul R. Algra, (unknown), (unknown), M. G. Svaland	30
10	The biomechanical effects of a sagittal split ramus osteotomy on the relationship of the mandible, the hyoid bone, and the cervical spine 1992 ·American Journal of Orthodontics and Dentofacial Orthopedics ·Jaap Valk, (unknown), (unknown), (unknown)	21
11	¹H and ³¹P magnetic resonance spectroscopy of the brain in degenerative cerebral disorders 1992 ·Annals of Neurology ·Marjo S. van der Knaap, Jeroen van der Grond, Peter R. Luyten, Jan A. den Hollander, Jos J. P. Nauta, Jaap Valk	89
12	MR imaging of skeletal metastases from medulloblastoma 1992 ·Skeletal Radiology ·Paul R. Algra, Tjeerd J. Postma, Cornelis J. van Groeningen, Paul van der Valk, Johan L. Bloem, Jaap Valk	8
13	L‐2‐hydroxyglutaric acidemia: A novel inherited neurometabolic disease 1992 ·Annals of Neurology ·P. G. Barth, Georg F. Hoffmann, J. Jaeken, W. Lehnert, F. Hanefeld, Albert H. Gennip, Marinus Duran, Jaap Valk, R. B. H. Schutgens, Friedrich K. Trefz, G Reimann, Hans‐Peter Hartung	119
14	MR imaging of the various stages of normal myelination during the first year of life 1990 ·Neuroradiology ·Marjo S. van der Knaap, Jaap Valk	146
15	Value of gadolinium-diethylene-triamine pentaacetic acid dynamics in magnetic resonance imaging of acute myocardial infarction with occluded and reperfused coronary arteries after thrombolysis 1990 ·The American Journal of Cardiology ·Albert C. van Rossum, Frans C. Visser, Machiel J. van Eenige, M. Sprenger, Jaap Valk, Freek W.A. Verheugt, Jan P. Roos	51
16	Imaging the bone marrow with magnetic resonance during a crisis and in chronic forms of sickle cell disease 1989 ·Clinical Radiology ·(unknown), (unknown), R.P. Golding, Jaap Valk	10
17	Malformation or damage of the corpus callosum? A clinical and MRI study 1988 ·Brain and Development ·(unknown), Jaap Valk, (unknown)	11
18	Magnetic resonance imaging of the heart for determination of ejection fraction 1988 ·International Journal of Cardiology ·Albert C. van Rossum, F. C. Visser, Machiel J. van Eenige, Jaap Valk, J. P. Roos	15
19	MRI of the brain, head, neck and spine : a teaching atlas of clinical applications 1987 ·Jaap Valk, Jonas A. Castelijns, Marjo S. van der Knaap	1
20	Gadolinium — DTPA in magnetic resonance imaging of the brain 1987 ·Neurosurgical Review ·Jaap Valk, (unknown), (unknown), (unknown), (unknown)	3

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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