Rachel O’Brien

3.6k total citations
27 papers, 450 citations indexed

About

Rachel O’Brien is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Rachel O’Brien has authored 27 papers receiving a total of 450 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Cardiology and Cardiovascular Medicine, 13 papers in Surgery and 11 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Rachel O’Brien's work include Cardiac Imaging and Diagnostics (11 papers), Acute Myocardial Infarction Research (11 papers) and Coronary Interventions and Diagnostics (6 papers). Rachel O’Brien is often cited by papers focused on Cardiac Imaging and Diagnostics (11 papers), Acute Myocardial Infarction Research (11 papers) and Coronary Interventions and Diagnostics (6 papers). Rachel O’Brien collaborates with scholars based in United Kingdom, Germany and Canada. Rachel O’Brien's co-authors include Matthew J. Reed, Richard K. Ellerkmann, Simeon Yordanov, Ansgar Riepe, Kareen Darnley, Emma Brodrick, Bernhard Schaaf, Daniel P. Sanders, Michael Eddleston and Oliver Mueller and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of the American College of Cardiology and European Heart Journal.

In The Last Decade

Rachel O’Brien

26 papers receiving 437 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Rachel O’Brien United Kingdom	10	204	115	108	69	60	27	450
Glenn Tokarski United States	8	48 0.2×	302 2.6×	183 1.7×	51 0.7×	26 0.4×	12	462
Valentina Barletta Italy	16	78 0.4×	335 2.9×	75 0.7×	121 1.8×	25 0.4×	65	599
Koji Tanaka Japan	15	56 0.3×	363 3.2×	138 1.3×	135 2.0×	35 0.6×	66	677
R. Heide Germany	7	109 0.5×	103 0.9×	160 1.5×	417 6.0×	20 0.3×	9	870
Lokinendi V. Rao United States	11	78 0.4×	13 0.1×	25 0.2×	26 0.4×	22 0.4×	28	350
Li‐Ta Keng Taiwan	9	63 0.3×	17 0.1×	15 0.1×	64 0.9×	24 0.4×	35	326
Marco Cereda Italy	8	85 0.4×	124 1.1×	7 0.1×	77 1.1×	13 0.2×	12	295
Subhankar Bandyopadhyay United States	11	40 0.2×	57 0.5×	106 1.0×	53 0.8×	25 0.4×	19	512
Richard Schofield United States	9	69 0.3×	217 1.9×	37 0.3×	85 1.2×	71 1.2×	26	473

Countries citing papers authored by Rachel O’Brien

Since Specialization

Citations

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

Fields of papers citing papers by Rachel O’Brien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Rachel O’Brien. 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 Rachel O’Brien. The network helps show where Rachel O’Brien may publish in the future.

Co-authorship network of co-authors of Rachel O’Brien

This figure shows the co-authorship network connecting the top 25 collaborators of Rachel O’Brien. A scholar is included among the top collaborators of Rachel O’Brien 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 Rachel O’Brien. Rachel O’Brien 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

Humphries, Chris, Michael Eddleston, S. Rodman Irvine, et al.. (2025). HiSNAP trial—a multicentre, randomised, open-label, blinded end point, safety and efficacy trial of conventional (300 mg/kg) versus higher doses of acetylcysteine (450 mg/kg and 600 mg/kg) in patients with paracetamol overdose in the UK: study protocol. BMJ Open. 15(3). e097432–e097432. 1 indexed citations

O’Brien, Rachel, Katherine Oatey, Liza Keating, et al.. (2024). Clinical decision aids and computed tomography coronary angiography in patients with suspected acute coronary syndrome. Emergency Medicine Journal. 41(8). 488–494. 1 indexed citations

Lee, Kuan Ken, David J. Lowe, Rachel O’Brien, et al.. (2023). Troponin in acute chest pain to risk stratify and guide effective use of computed tomography coronary angiography (TARGET-CTCA): a randomised controlled trial. Trials. 24(1). 402–402. 3 indexed citations

Reed, Matthew J., Neil R. Grubb, Steve Goodacre, et al.. (2023). Multicentre open label randomised controlled trial of immediate enhanced ambulatory ECG monitoring versus standard monitoring in acute unexplained syncope patients: the ASPIRED study. BMJ Open. 13(2). e069530–e069530. 1 indexed citations

Thokala, Praveen, Steve Goodacre, Katherine Oatey, et al.. (2023). Cost-effectiveness of rapid assessment of potential ischaemic heart disease with CT coronary angiography. Heart. 109(6). 464–469.

Wang, Kang-Ling, Mohammed N. Meah, Anda Bularga, et al.. (2023). Early computed tomography coronary angiography and preventative treatment in patients with suspected acute coronary syndrome: A secondary analysis of the RAPID-CTCA trial. American Heart Journal. 266. 138–148. 4 indexed citations

Gray, Alasdair, Carl Roobottom, Jason Smith, et al.. (2022). Early computed tomography coronary angiography in adults presenting with suspected acute coronary syndrome: the RAPID-CTCA RCT. Health Technology Assessment. 26(37). 1–114. 3 indexed citations

Brennan, Paul M., Holly J. Butler, Mark G. Hegarty, et al.. (2021). Early diagnosis of brain tumours using a novel spectroscopic liquid biopsy. Brain Communications. 3(2). fcab056–fcab056. 23 indexed citations

Gray, Alasdair, Carl Roobottom, Jason Smith, et al.. (2021). Early computed tomography coronary angiography in patients with suspected acute coronary syndrome: randomised controlled trial. BMJ. 374. n2106–n2106. 48 indexed citations

10.

Lee, Kuan Ken, Anda Bularga, Rachel O’Brien, et al.. (2021). Troponin-Guided Coronary Computed Tomographic Angiography After Exclusion of Myocardial Infarction. Journal of the American College of Cardiology. 78(14). 1407–1417. 25 indexed citations

11.

Ruszkiewicz, Dorota, Daniel P. Sanders, Rachel O’Brien, et al.. (2020). Diagnosis of COVID-19 by analysis of breath with gas chromatography-ion mobility spectrometry - a feasibility study. EClinicalMedicine. 29-30. 100609–100609. 172 indexed citations

12.

Sanders, Daniel P., Rachel O’Brien, Matthew J. Reed, et al.. (2020). Diagnosis of COVID-19 by Analysis of Breath with Gas Chromatography-Ion Mobility Spectrometry: A Feasibility Study. SSRN Electronic Journal. 2 indexed citations

13.

Reed, Matthew J., Rachel O’Brien, Alison Grant, et al.. (2019). 018 Clinician prediction of cardiac arrhythmia in patients presenting to the ED with palpitation or pre-syncope. Emergency Medicine Journal. 36(12). 783.2–784. 1 indexed citations

14.

Morrison, Emma, Katherine Oatey, Bernadette Gallagher, et al.. (2019). Principal results of a randomised open label exploratory, safety and tolerability study with calmangafodipir in patients treated with a 12 h regimen of N-acetylcysteine for paracetamol overdose (POP trial). EBioMedicine. 46. 423–430. 35 indexed citations

15.

Reed, Matthew J., Neil R. Grubb, Christopher Lang, et al.. (2019). Multi-centre Randomised Controlled Trial of a Smartphone-based Event Recorder Alongside Standard Care Versus Standard Care for Patients Presenting to the Emergency Department with Palpitations and Pre-syncope: The IPED (Investigation of Palpitations in the ED) study. EClinicalMedicine. 8. 37–46. 32 indexed citations

16.

Reed, Matthew J., Neil R. Grubb, Christopher Lang, et al.. (2018). Multi-centre randomised controlled trial of a smart phone-based event recorder alongside standard care versus standard care for patients presenting to the Emergency Department with palpitations and pre-syncope - the IPED (Investigation of Palpitations in the ED) study: study protocol for a randomised controlled trial. Trials. 19(1). 711–711. 12 indexed citations

17.

Reed, Matthew J., Polly Black, Steff Lewis, et al.. (2018). Detection of physiological deterioration by the SNAP40 wearable device compared to standard monitoring devices in the emergency department: the SNAP40-ED study. SHILAP Revista de lepidopterología. 2(1). 18–18. 5 indexed citations

18.

Reed, Matthew J., Neil R. Grubb, Christopher Lang, et al.. (2018). Multi-Centre Randomised Controlled Trial of a Smart Phone Based Event Recorder Alongside Standard Care Versus Standard Care for Patients Presenting to the Emergency Department with Palpitations and Pre-Syncope: The IPED (Investigation of Palpitations in the Ed) Study. SSRN Electronic Journal. 2 indexed citations

19.

Gray, Alasdair, Carl Roobottom, Jason Smith, et al.. (2016). The RAPID-CTCA trial (Rapid Assessment of Potential Ischaemic Heart Disease with CTCA) — a multicentre parallel-group randomised trial to compare early computerised tomography coronary angiography versus standard care in patients presenting with suspected or confirmed acute coronary syndrome: study protocol for a randomised controlled trial. Trials. 17(1). 579–579. 24 indexed citations

20.

Nambi, Gopal, et al.. (2011). The relationship between hospital volume and mortality following mechanical ventilation in the Intensive Care Unit.. PubMed. 77(1). 26–32. 12 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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