Publications by authors named "Jim O Doherty"

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Photon-counting CT imaging of a patient with coiled and untreated intracranial saccular aneurysms.
Adrienn Tóth, Jennifer Y Cho, Evan Wilson, Jim O'Doherty, Maria Vittoria Spampinato

Neuroradiol J· October 2025

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Automated coronary analysis in ultrahigh-spatial resolution photon-counting detector CT angiography: Clinical validation and intra-individual comparison with energy-integrating detector CT.
Dmitrij Kravchenko, Muhammad Taha Hagar, Akos Varga-Szemes, U Joseph Schoepf, Max Schoebinger, Jim O'Doherty

J Cardiovasc Comput Tomogr· October 2025

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Understanding time-activity curve and time-integrated activity variations in radiopharmaceutical therapy challenge: Experience and results.
Oleksandra V Ivashchenko, Jim O'Doherty, Deni Hardiansyah, Elisa Grassi, Johannes Tran-Gia

Med Phys· October 2025

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Semiquantitative metrics of coronary artery disease burden: Intra-individual comparison between ultrahigh-resolution photon-counting detector CT and energy-integrating detector CT.
Giuseppe Tremamunno, Akos Varga-Szemes, U Joseph Schoepf, Dmitrij Kravchenko, Muhammad Taha Hagar, Jim O'Doherty

J Cardiovasc Comput Tomogr· August 2025

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Accuracy of a deep neural network for automated pulmonary embolism detection on dedicated CT pulmonary angiograms.
Emese Zsarnoczay, Saikiran Rapaka, U Joseph Schoepf, Chiara Gnasso, Milan Vecsey-Nagy, Jim O'Doherty

Eur J Radiol· June 2025

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Reconstruction Kernel Optimization for Ultra-High-Resolution Photon-Counting Detector Computed Tomography of the Lung.
Adrienn Tóth, Jordan H Chamberlin, Carter D Smith, Dhruw Maisuria, Aaron M McGuire, Jim O'Doherty

J Comput Assist Tomogr· May 2025

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Cost-effectiveness of ultrahigh-resolution photon-counting detector coronary CT angiography for the evaluation of stable chest pain.
Milán Vecsey-Nagy, Tilman Emrich, Giuseppe Tremamunno, Dmitrij Kravchenko, Muhammad Taha Hagar, Jim O'Doherty

J Cardiovasc Comput Tomogr· April 2025

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Predicting mortality after transcatheter aortic valve replacement using AI-based fully automated left atrioventricular coupling index.
Emese Zsarnoczay, Akos Varga-Szemes, U Joseph Schoepf, Saikiran Rapaka, Daniel Pinos, Jim O'Doherty

J Cardiovasc Comput Tomogr· April 2025

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Optimizing Quantum Iterative Reconstruction for Ultra-high-resolution Photon-counting Computed Tomography of the Lung.
Adrienn Tóth, Jordan H Chamberlin, Gregory Puthoff, Dhiraj Baruah, Jim O'Doherty

J Thorac Imaging· March 2025

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Intra-individual Differences in Pericoronary Fat Attenuation Index Measurements Between Photon-counting and Energy-integrating Detector Computed Tomography.
Giuseppe Tremamunno, Milan Vecsey-Nagy, Muhammad Taha Hagar, U Joseph Schoepf, Jim O'Doherty

Acad Radiol· March 2025

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Coronary Plaque Quantification with Ultrahigh-Spatial-Resolution Photon-counting Detector CT: Intraindividual Comparison with Energy-integrating Detector CT.
Milán Vecsey-Nagy, Giuseppe Tremamunno, U Joseph Schoepf, Chiara Gnasso, Emese Zsarnóczay, Jim O'Doherty

Radiology· March 2025

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Artificial Intelligence Improves Prediction of Major Adverse Cardiovascular Events in Patients Undergoing Transcatheter Aortic Valve Replacement Planning CT.
Giuseppe Tremamunno, Milan Vecsey-Nagy, U Joseph Schoepf, Emese Zsarnoczay, Gilberto J Aquino, Jim O'Doherty

Acad Radiol· February 2025

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Clinical Pilot of a Deep Learning Elastic Registration Algorithm to Improve Misregistration Artifact and Image Quality on Routine Oncologic PET/CT.
Jordan H Chamberlin, Joshua Schaefferkoetter, James Hamill, Ismail M Kabakus, Kevin P Horn, Jim O'Doherty

Acad Radiol· February 2025

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Intra-individual radiomic analysis of pericoronary adipose tissue: Photon-counting detector vs energy-integrating detector CT angiography.
Dmitrij Kravchenko, Milan Vecsey-Nagy, Akos Varga-Szemes, Muhammad Taha Hagar, U Joseph Schoepf, Jim O'Doherty

Int J Cardiol· February 2025

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Artificial intelligence-derived coronary artery calcium scoring saves time and achieves close to radiologist-level accuracy accuracy on routine ECG-gated CT.
Jordan H Chamberlin, Sameer Abrol, James Munford, Jim O'Doherty, Dhiraj Baruah

Int J Cardiovasc Imaging· February 2025

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Influence of virtual monoenergetic reconstructions on coronary CT angiography-based fractional flow reserve with photon-counting detector CT: intra-individual comparison with energy-integrating detector CT.
Giuseppe Tremamunno, Daniel Pinos, Emese Zsarnoczay, U Joseph Schoepf, Milan Vecsey-Nagy, Jim O'Doherty

Insights Imaging· February 2025

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Intra-individual comparison of epicardial adipose tissue characteristics on coronary CT angiography between photon-counting detector and energy-integrating detector CT systems.
Dmitrij Kravchenko, Milan Vecsey-Nagy, Giuseppe Tremamunno, U Joseph Schoepf, Jim O'Doherty

Eur J Radiol· December 2024

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Coronary CT angiography-based FFR with ultrahigh-resolution photon-counting detector CT: Intra-individual comparison to energy-integrating detector CT.
Milan Vecsey-Nagy, Giuseppe Tremamunno, U Joseph Schoepf, Chiara Gnasso, Emese Zsarnóczay, Jim O'Doherty

Eur J Radiol· December 2024

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PET-CT outcomes from a randomised controlled trial of rosuvastatin as an adjunct to standard tuberculosis treatment.
Gail B Cross, Intan P Sari, Sarah M Burkill, Chee Woei Yap, Han Nguyen, Jim O'Doherty

Nat Commun· December 2024

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Intraindividual Comparison of Ultrahigh-Spatial-Resolution Photon-Counting Detector CT and Energy-Integrating Detector CT for Coronary Stenosis Measurement.
Milán Vecsey-Nagy, Giuseppe Tremamunno, U Joseph Schoepf, Chiara Gnasso, Emese Zsarnóczay, Jim O'Doherty

Circ Cardiovasc Imaging· October 2024

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Comparison of Hounsfield Unit variability between two same model photon counting CT detector systems. A phantom study applied to lung CT.
Sina Tafti, Andres Abadia, George Fung, Juan Carlos Ramirez-Giraldo, Jim O' Doherty

Phys Med· October 2024

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The role of medical physics experts in clinical trials: A guideline from the European Federation of Organisations for Medical Physics.
Natalie Louise Abbott, Stephane Chauvie, Loredana Marcu, Catherine DeJean, Christos Melidis, Jim O'Doherty

Phys Med· October 2024

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Gadolinium-based coronary CT angiography on a clinical photon-counting-detector system: a dynamic circulating phantom study.
Dmitrij Kravchenko, Chiara Gnasso, U Joseph Schoepf, Milan Vecsey-Nagy, Giuseppe Tremamunno, Jim O'Doherty

Eur Radiol Exp· October 2024

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Intraindividual reproducibility of myocardial radiomic features between energy-integrating detector and photon-counting detector CT angiography.
Giuseppe Tremamunno, Akos Varga-Szemes, U Joseph Schoepf, Andrea Laghi, Emese Zsarnoczay, Jim O'Doherty

Eur Radiol Exp· August 2024

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Accuracy of ultra-high resolution and virtual non-calcium reconstruction algorithm for stenosis evaluation with photon-counting CT: results from a dynamic phantom study.
Emese Zsarnoczay, Nicola Fink, U Joseph Schoepf, Daniel Pinos, Jim O'Doherty

Eur Radiol Exp· August 2024

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