Johan Marjamaa

660 total citations
25 papers, 444 citations indexed

About

Johan Marjamaa is a scholar working on Pathology and Forensic Medicine, Neurology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Johan Marjamaa has authored 25 papers receiving a total of 444 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Pathology and Forensic Medicine, 10 papers in Neurology and 8 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Johan Marjamaa's work include Intracranial Aneurysms: Treatment and Complications (8 papers), Spine and Intervertebral Disc Pathology (7 papers) and Aortic aneurysm repair treatments (5 papers). Johan Marjamaa is often cited by papers focused on Intracranial Aneurysms: Treatment and Complications (8 papers), Spine and Intervertebral Disc Pathology (7 papers) and Aortic aneurysm repair treatments (5 papers). Johan Marjamaa collaborates with scholars based in Finland, United States and Canada. Johan Marjamaa's co-authors include Pascal Matsakis, James M. Keller, Ozy Sjahputera, Mika Niemelä, Juhana Frösén, Juha Hernesniemi, Usama Abo‐Ramadan, Laurent Wendling, Serge Marbacher and Michael von Gunten and has published in prestigious journals such as IEEE Transactions on Pattern Analysis and Machine Intelligence, Stroke and Magnetic Resonance in Medicine.

In The Last Decade

Johan Marjamaa

23 papers receiving 433 citations

Peers

Johan Marjamaa
Ye Pan China
Jianwu Long China
Baolong Liu China
Adam Huang United States
Ming Zhu China
Eriko Fukui Japan
Tom Croonenborghs Belgium
Jing Ye China
Neculai Archip United States
Ye Pan China
Johan Marjamaa
Citations per year, relative to Johan Marjamaa Johan Marjamaa (= 1×) peers Ye Pan

Countries citing papers authored by Johan Marjamaa

Since Specialization
Citations

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

Fields of papers citing papers by Johan Marjamaa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Johan Marjamaa

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

All Works

20 of 20 papers shown
1.
Palomäki, P., Johan Marjamaa, Tiina Sairanen, & Mika Niemelä. (2025). Patient satisfaction and quality of life with hemifacial spasm treatments in Finland's largest hospital district. Brain and Spine. 5. 105875–105875.
2.
Marjamaa, Johan, et al.. (2024). Inferior long-term outcomes after surgery for lumbar disc herniation in patients with prior lumbar spine surgery. Acta Neurochirurgica. 166(1). 32–32. 1 indexed citations
3.
Palomäki, P., Tiina Sairanen, Mika Niemelä, & Johan Marjamaa. (2024). Radiofrequency thermocoagulation as a treatment for hemifacial spasm: long-term follow-up and management of recurrences. Acta Neurochirurgica. 166(1). 268–268. 1 indexed citations
4.
Marjamaa, Johan, et al.. (2023). The Finnish spine register (FinSpine): development, design, validation and utility. European Spine Journal. 32(11). 3731–3743. 10 indexed citations
5.
Marjamaa, Johan, et al.. (2023). Favorable long-term health-related quality of life after surgery for lumbar disc herniation in young adult patients. Acta Neurochirurgica. 165(3). 797–805. 8 indexed citations
6.
Marjamaa, Johan, et al.. (2023). Incidence and prevalence of Hemifacial Spasm in Finland's largest hospital district. Journal of the Neurological Sciences. 446. 120587–120587. 9 indexed citations
7.
8.
Marjamaa, Johan, Jari Siironen, Seppo Koskinen, et al.. (2022). Long-Term Follow-Up After Cervical Laminectomy without Fusion for Cervical Spondylotic Myelopathy. World Neurosurgery. 167. e222–e235. 4 indexed citations
9.
Marjamaa, Johan, et al.. (2022). Favorable long-term outcome in young adults undergoing surgery for lumbar disc herniation. Acta Neurochirurgica. 164(12). 3155–3164. 3 indexed citations
10.
Raj, Rahul, et al.. (2021). Spontaneous angiogram-negative subarachnoid hemorrhage: a retrospective single center cohort study. Acta Neurochirurgica. 164(1). 129–140. 9 indexed citations
11.
12.
Siironen, Jari, et al.. (2020). Anterior cervical discectomy and fusion in young adults leads to favorable outcome in long-term follow-up. The Spine Journal. 20(7). 1073–1084. 21 indexed citations
13.
Marbacher, Serge, et al.. (2014). The Helsinki Rat Microsurgical Sidewall Aneurysm Model. Journal of Visualized Experiments. e51071–e51071. 15 indexed citations
14.
Marbacher, Serge, et al.. (2014). The Helsinki Rat Microsurgical Sidewall Aneurysm Model. Journal of Visualized Experiments. 3 indexed citations
15.
Marbacher, Serge, Juhana Frösén, Johan Marjamaa, et al.. (2014). Intraluminal Cell Transplantation Prevents Growth and Rupture in a Model of Rupture-Prone Saccular Aneurysms. Stroke. 45(12). 3684–3690. 25 indexed citations
16.
Marjamaa, Johan, Riikka Tulamo, Juhana Frösén, et al.. (2008). Occlusion of neck remnant in experimental rat aneurysms after treatment with platinum- or polyglycolic-polylactic acid–coated coils. Surgical Neurology. 71(4). 458–465. 11 indexed citations
17.
Frösén, Juhana, Janne Pitkäniemi, Riikka Tulamo, et al.. (2006). Association of Fatal Aneurysmal Subarachnoid Hemorrhage with Human Leukocyte Antigens in the Finnish Population. Human Immunology. 68(2). 100–105. 3 indexed citations
18.
19.
Matsakis, Pascal, James M. Keller, Ozy Sjahputera, & Johan Marjamaa. (2004). The use of force histograms for affine-invariant relative position description. IEEE Transactions on Pattern Analysis and Machine Intelligence. 26(1). 1–0_6. 80 indexed citations
20.
Matsakis, Pascal, James M. Keller, Laurent Wendling, Johan Marjamaa, & Ozy Sjahputera. (2001). Linguistic description of relative positions in images. IEEE Transactions on Systems Man and Cybernetics Part B (Cybernetics). 31(4). 573–588. 73 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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