Ciarán Johnston

509 total citations
21 papers, 253 citations indexed

About

Ciarán Johnston is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Ciarán Johnston has authored 21 papers receiving a total of 253 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Pulmonary and Respiratory Medicine, 8 papers in Surgery and 7 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Ciarán Johnston's work include Esophageal Cancer Research and Treatment (4 papers), Medical Imaging Techniques and Applications (3 papers) and Radiopharmaceutical Chemistry and Applications (2 papers). Ciarán Johnston is often cited by papers focused on Esophageal Cancer Research and Treatment (4 papers), Medical Imaging Techniques and Applications (3 papers) and Radiopharmaceutical Chemistry and Applications (2 papers). Ciarán Johnston collaborates with scholars based in Ireland, United States and Türkiye. Ciarán Johnston's co-authors include John V. Reynolds, Vinod Malik, Mary T. Keogan, Dermot O’Toole, Hansel J. Otero, Annick D. Van den Abbeele, Nikhil H. Ramaiya, Julie Lucey, Niall McEniff and Stephen Eustace and has published in prestigious journals such as American Journal of Roentgenology, World Journal of Surgery and Pharmaceuticals.

In The Last Decade

Ciarán Johnston

21 papers receiving 245 citations

Peers

Ciarán Johnston

SURGE

PRM

RNMI

ONCOL

Natasha Hasemaki Greece

Dheeraj Reddy Gopireddy United States

T. Caramella France

Thomas Dykes United States

Manuela Robella Italy

S. Ayyagari India

Ki Choon Sim South Korea

Caryl G. Salomon United States

Haythem Najah France

Hugo C. Temperley Ireland

Natasha Hasemaki Greece

Ciarán Johnston

99 ×0.8

SURGE

87 ×1.0

PRM

20 ×0.3

RNMI

57 ×1.6

ONCOL

10 ×0.4

Citations per year, relative to Ciarán Johnston Ciarán Johnston (= 1×) peers Natasha Hasemaki

Countries citing papers authored by Ciarán Johnston

Since Specialization

Citations

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

Fields of papers citing papers by Ciarán Johnston

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ciarán Johnston

This figure shows the co-authorship network connecting the top 25 collaborators of Ciarán Johnston. A scholar is included among the top collaborators of Ciarán Johnston 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 Ciarán Johnston. Ciarán Johnston 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

Öhlén, P., et al.. (2022). Network digital twins – outlook and opportunities. 2022(12). 2–11. 15 indexed citations

Johnston, Ciarán, et al.. (2021). Spurious Uptake on 68Ga–Prostate-Specific Membrane Antigen PET/CT Due to Ankylosing Spondylitis; A Rare Pitfall in Imaging of Biochemical Recurrence of Prostate Cancer. Clinical Nuclear Medicine. 46(7). e373–e375. 1 indexed citations

Courtney, Michael, et al.. (2021). Meningioma uptake of ⁶⁸Gallium-PSMA-11 as a pitfall on positron emission tomography/computer tomography. Acta Radiologica Open. 10(2). 2555092489–2555092489. 6 indexed citations

Conway, Richard, et al.. (2019). High prevalence of abnormalities on chest radiography in rheumatoid arthritis. Clinical Rheumatology. 38(12). 3375–3380. 3 indexed citations

Malik, Vinod, et al.. (2019). Can the Efficacy of [18F]FDG-PET/CT in Clinical Oncology Be Enhanced by Screening Biomolecular Profiles?. Pharmaceuticals. 12(1). 16–16. 13 indexed citations

Malik, Vinod, Ciarán Johnston, Dermot O’Toole, et al.. (2016). Metabolic tumor volume provides complementary prognostic information to EUS staging in esophageal and junctional cancer. Diseases of the Esophagus. 30(3). 1–8. 18 indexed citations

Malik, Vinod, Ciarán Johnston, Andrew Fagan, et al.. (2015). Whole Body MRI in the Staging of Esophageal Cancer - A Prospective Comparison with Whole Body <sup>18</sup>F-FDG PET-CT. Digestive Surgery. 32(5). 397–408. 22 indexed citations

Souza, Frederico, Andrew D. Smith, Jyothi P. Jagannathan, et al.. (2014). New targeted molecular therapies for cancer: radiological response in intrathoracic malignancies and cardiopulmonary toxicity: what the radiologist needs to know. Cancer Imaging. 14(1). 26–26. 13 indexed citations

Halpenny, Darragh, et al.. (2014). 18F-FDG-PET/CT is of limited value in primary staging of early stage cervical cancer. Abdominal Imaging. 40(1). 127–133. 22 indexed citations

10.

O’Farrell, Naoimh J., Vinod Malik, Claire L. Donohoe, et al.. (2013). Appraisal of Staging Endoscopic Ultrasonography in a Modern High‐Volume Esophageal Program. World Journal of Surgery. 37(7). 1666–1672. 13 indexed citations

11.

Malik, Vinod, Ciarán Johnston, Claire L. Donohoe, et al.. (2012). 18F-FDG PET-Detected Synchronous Primary Neoplasms in the Staging of Esophageal Cancer. Clinical Nuclear Medicine. 37(12). 1152–1158. 15 indexed citations

12.

Malone, Dermot E., et al.. (2010). Your Patient Has Symptomatic Fibroids and Would like to Have a Baby: What Treatment Should you Advise?. Canadian Association of Radiologists Journal. 63(1). 2–4. 1 indexed citations

13.

Souza, Frederico, et al.. (2009). Recurrent malignant peritoneal mesothelioma: radiological manifestations. Abdominal Imaging. 35(3). 315–321. 10 indexed citations

14.

Otero, Hansel J., Jyothi P. Jagannathan, Luciano M. Prevedello, et al.. (2009). CT and PET/CT Findings of T-Cell Lymphoma. American Journal of Roentgenology. 193(2). 349–358. 27 indexed citations

15.

Otero, Hansel J., Jeffrey T. Yap, Michael A. Patak, et al.. (2009). Evaluation of Low-Density Neutral Oral Contrast Material in PET/CT for Tumor Imaging: Results of a Randomized Clinical Trial. American Journal of Roentgenology. 193(2). 326–332. 9 indexed citations

16.

Souza, Frederico, et al.. (2009). Melanoma metastático causando intussuscepção do intestino delgado: diagnóstico por 18F-FDG PET/TC. Radiologia Brasileira. 42(5). 333–335. 4 indexed citations

17.

Johnston, Ciarán, et al.. (2007). Use of Provocative Angiography to Localize Site in Recurrent Gastrointestinal Bleeding. CardioVascular and Interventional Radiology. 30(5). 1042–1046. 24 indexed citations

18.

Johnston, Ciarán, et al.. (2007). MRI as a problem-solving tool in unexplained failed total hip replacement following conventional assessment. Skeletal Radiology. 36(10). 955–961. 18 indexed citations

19.

Johnston, Ciarán & Mary T. Keogan. (2004). Imaging Features of Soft-Tissue Infections and Other Complications in Drug Users After Direct Subcutaneous Injection (“Skin Popping”). American Journal of Roentgenology. 182(5). 1195–1202. 7 indexed citations

20.

Browne, Ronan F. J., et al.. (2004). Emergency Selective Arterial Embolization for Control of Life-Threatening Hemorrhage from Uterine Fibroids. American Journal of Roentgenology. 183(4). 1025–1028. 5 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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