Joni M. E. Oja

1.1k total citations
12 papers, 882 citations indexed

About

Joni M. E. Oja is a scholar working on Radiology, Nuclear Medicine and Imaging, Molecular Biology and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Joni M. E. Oja has authored 12 papers receiving a total of 882 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Radiology, Nuclear Medicine and Imaging, 3 papers in Molecular Biology and 3 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Joni M. E. Oja's work include Advanced MRI Techniques and Applications (10 papers), MRI in cancer diagnosis (3 papers) and Atomic and Subatomic Physics Research (3 papers). Joni M. E. Oja is often cited by papers focused on Advanced MRI Techniques and Applications (10 papers), MRI in cancer diagnosis (3 papers) and Atomic and Subatomic Physics Research (3 papers). Joni M. E. Oja collaborates with scholars based in Finland, United States and Slovakia. Joni M. E. Oja's co-authors include Risto A. Kauppinen, Peter C.M. van Zijl, Richard J. Traystman, John A. Ulatowski, Scott M. Eleff, Aziz M. Uluğ, Michael A. Kraut, Olli Gröhn, Jouko A. Lukkarinen and Joseph Gillen and has published in prestigious journals such as Nature Medicine, Chemical Physics Letters and Magnetic Resonance in Medicine.

In The Last Decade

Joni M. E. Oja

12 papers receiving 858 citations

Peers

Joni M. E. Oja

RNMI

AMPO

EPIDE

Xiang He United States

Keith Heberlein United States

Ralph Noeske Germany

K. Herholz Germany

Thomas A. Spraggins United States

Chekesha S. Clingman United States

Karsten Sommer Germany

Frank G.C. Hoogenraad Netherlands

H. Ostertag Germany

Benjamin A. Thomas United Kingdom

Xiang He United States

Joni M. E. Oja

975 ×1.3

RNMI

176 ×0.9

145 ×1.2

AMPO

51 ×0.7

55 ×0.7

EPIDE

Citations per year, relative to Joni M. E. Oja Joni M. E. Oja (= 1×) peers Xiang He

Countries citing papers authored by Joni M. E. Oja

Since Specialization

Citations

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

Fields of papers citing papers by Joni M. E. Oja

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Joni M. E. Oja. 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 Joni M. E. Oja. The network helps show where Joni M. E. Oja may publish in the future.

Co-authorship network of co-authors of Joni M. E. Oja

This figure shows the co-authorship network connecting the top 25 collaborators of Joni M. E. Oja. A scholar is included among the top collaborators of Joni M. E. Oja 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 Joni M. E. Oja. Joni M. E. Oja is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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12 of 12 papers shown

Gröhn, Olli, Mikko I. Kettunen, Markku Penttonen, et al.. (2000). Graded Reduction of Cerebral Blood Flow in Rat as Detected by the Nuclear Magnetic Resonance Relaxation Time T₂: A Theoretical and Experimental Approach. Journal of Cerebral Blood Flow & Metabolism. 20(2). 316–326. 47 indexed citations

Oja, Joni M. E.. (1999). In vivo determination of cerebral hemodynamics and bioenergetics using spin-echo magnetic resonance imaging. PhDT. 830. 1 indexed citations

Oja, Joni M. E., et al.. (1999). Venous blood effects in spin-echo fMRI of human brain. Magnetic Resonance in Medicine. 42(4). 617–626. 77 indexed citations

Ulatowski, John A., Joni M. E. Oja, José I. Suárez, et al.. (1999). In Vivo Determination of Absolute Cerebral Blood Volume Using Hemoglobin as a Natural Contrast Agent: An MRI Study Using Altered Arterial Carbon Dioxide Tension. Journal of Cerebral Blood Flow & Metabolism. 19(7). 809–817. 33 indexed citations

Oja, Joni M. E., Joseph Gillen, Risto A. Kauppinen, Michael A. Kraut, & Peter C.M. van Zijl. (1999). Determination of Oxygen Extraction Ratios by Magnetic Resonance Imaging. Journal of Cerebral Blood Flow & Metabolism. 19(12). 1289–1295. 88 indexed citations

Lukkarinen, Jouko A., Risto A. Kauppinen, Olli Gröhn, et al.. (1998). Neuroprotective role of ornithine decarboxylase activation in transient focal cerebral ischaemia: a study using ornithine decarboxylase-overexpressing transgenic rats. European Journal of Neuroscience. 10(6). 2046–2055. 30 indexed citations

Zijl, Peter C.M. van, Scott M. Eleff, John A. Ulatowski, et al.. (1998). Quantitative assessment of blood flow, blood volume and blood oxygenation effects in functional magnetic resonance imaging. Nature Medicine. 4(2). 159–167. 402 indexed citations

Mierisová, Šárka, et al.. (1998). Automated Quantification of Human Brain Metabolites by Artificial Neural Network Analysis fromin VivoSingle-Voxel1H NMR Spectra. Journal of Magnetic Resonance. 134(1). 176–179. 18 indexed citations

Gröhn, Olli, Jouko A. Lukkarinen, Joni M. E. Oja, et al.. (1998). Noninvasive Detection of Cerebral Hypoperfusion and Reversible Ischemia from Reductions in the Magnetic Resonance Imaging Relaxation Time, T₂. Journal of Cerebral Blood Flow & Metabolism. 18(8). 911–920. 81 indexed citations

10.

Zijl, Peter C. van, Aziz M. Uluğ, Scott M. Eleff, et al.. (1998). [Quantitative assessment of blood flow, blood volume and blood oxygenation effects in functional magnetic resonance imaging].. PubMed. 114(8). 808–9. 85 indexed citations

11.

Lukkarinen, Jouko A., Joni M. E. Oja, Mikko P. Turunen, & Risto A. Kauppinen. (1997). QUANTITATIVE DETERMINATION OF GLUTAMATE TURNOVER BY 1 H-OBSERVED, 13 C-EDITED NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY IN THE CEREBRAL CORTEX EX VIVO : INTERRELATIONSHIPS WITH OXYGEN CONSUMPTION. Neurochemistry International. 31(1). 95–104. 12 indexed citations

12.

Ala‐Korpela, Mika, Joni M. E. Oja, Juhani Lounila, et al.. (1995). Structural changes of lipoprotein lipids by 1H NMR. Chemical Physics Letters. 242(1-2). 95–100. 8 indexed citations

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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