Works by Keall, Paul J

Results: 83

Results from the AAPM Task Group 324 respiratory motion management in radiation oncology survey.

Published in:

Journal of Applied Clinical Medical Physics, 2022, v. 23, n. 11, p. 1, doi. 10.1002/acm2.13810

By:

Ball, Helen J.;
Santanam, Lakshmi;
Senan, Suresh;
Tanyi, James A.;
van Herk, Marcel;
Keall, Paul J.

Publication type:

Article

Investigation of cardiac substructure automatic segmentation methods on synthetically generated 4D cone‐beam CT images.

Published in:

Medical Physics, 2025, v. 52, n. 4, p. 2224, doi. 10.1002/mp.17596

By:

Gardner, Mark;
Finnegan, Robert N.;
Dillon, Owen;
Chin, Vicky;
Reynolds, Tess;
Keall, Paul J.

Publication type:

Article

Six‐degrees‐of‐freedom pelvic bone monitoring on 2D kV intrafraction images to enable multi‐target tracking for locally advanced prostate cancer.

Published in:

Medical Physics, 2025, v. 52, n. 1, p. 77, doi. 10.1002/mp.17465

By:

Hewson, Emily A;
Dillon, Owen;
Poulsen, Per R;
Booth, Jeremy T;
Keall, Paul J

Publication type:

Article

Open‐source hardware and software for the measurement, characterization, reporting, and correction of geometric distortion in MRI.

Published in:

Medical Physics, 2024, v. 51, n. 11, p. 8399, doi. 10.1002/mp.17342

By:

Whelan, Brendan M.;
Liu, Paul Z. Y.;
Shan, Shanshan;
Waddington, David E. J.;
Dong, Bin;
Jameson, Michael G.;
Keall, Paul J.

Publication type:

Article

Experimental comparison of linear regression and LSTM motion prediction models for MLC‐tracking on an MRI‐linac.

Published in:

Medical Physics, 2023, v. 50, n. 11, p. 7083, doi. 10.1002/mp.16770

By:

Lombardo, Elia;
Liu, Paul Z. Y.;
Waddington, David E. J.;
Grover, James;
Whelan, Brendan;
Wong, Esther;
Reiner, Michael;
Corradini, Stefanie;
Belka, Claus;
Riboldi, Marco;
Kurz, Christopher;
Landry, Guillaume;
Keall, Paul J.

Publication type:

Article

Realistic CT data augmentation for accurate deep‐learning based segmentation of head and neck tumors in kV images acquired during radiation therapy.

Published in:

Medical Physics, 2023, v. 50, n. 7, p. 4206, doi. 10.1002/mp.16388

By:

Gardner, Mark;
Bouchta, Youssef Ben;
Mylonas, Adam;
Mueller, Marco;
Cheng, Chen;
Chlap, Phillip;
Finnegan, Robert;
Sykes, Jonathan;
Keall, Paul J;
Nguyen, Doan Trang

Publication type:

Article

Real-time radial reconstruction with domain transform manifold learning for MRI-guided radiotherapy.

Published in:

Medical Physics, 2023, v. 50, n. 4, p. 1962, doi. 10.1002/mp.16224

By:

Waddington, David E. J.;
Hindley, Nicholas;
Koonjoo, Neha;
Chiu, Christopher;
Reynolds, Tess;
Liu, Paul Z. Y.;
Bo Zhu;
Bhutto, Danyal;
Paganelli, Chiara;
Keall, Paul J.;
Rosen, Matthew S.

Publication type:

Article

The dosimetric error due to uncorrected tumor rotation during real‐time adaptive prostate stereotactic body radiation therapy.

Published in:

Medical Physics, 2023, v. 50, n. 1, p. 20, doi. 10.1002/mp.16094

By:

Sengupta, Chandrima;
Skouboe, Simon;
Ravkilde, Thomas;
Poulsen, Per Rugaard;
Nguyen, Doan Trang;
Greer, Peter B.;
Moodie, Trevor;
Hardcastle, Nicholas;
Hayden, Amy J.;
Turner, Sandra;
Siva, Shankar;
Tai, Keen‐Hun;
Martin, Jarad;
Booth, Jeremy T.;
O'Brien, Ricky;
Keall, Paul J.

Publication type:

Article

Adaptive CaRdiac cOne BEAm computed Tomography (ACROBEAT): Developing the next generation of cardiac cone beam CT imaging.

Published in:

Medical Physics, 2021, v. 48, n. 5, p. 2543, doi. 10.1002/mp.14811

By:

Reynolds, Tess;
Dillon, Owen;
Prinable, Joseph;
Whelan, Brendan;
Keall, Paul J.;
O'Brien, Ricky T.

Publication type:

Article

AAPM Task Group 264: The safe clinical implementation of MLC tracking in radiotherapy.

Published in:

Medical Physics, 2021, v. 48, n. 5, p. e44, doi. 10.1002/mp.14625

By:

Keall, Paul J.;
Sawant, Amit;
Berbeco, Ross I.;
Booth, Jeremy T.;
Cho, Byungchul;
Cerviño, Laura I.;
Cirino, Eileen;
Dieterich, Sonja;
Fast, Martin F.;
Greer, Peter B.;
Munck af Rosenschöld, Per;
Parikh, Parag J.;
Poulsen, Per Rugaard;
Santanam, Lakshmi;
Sherouse, George W.;
Shi, Jie;
Stathakis, Sotirios

Publication type:

Article

Toward real‐time verification for MLC tracking treatments using time‐resolved EPID imaging.

Published in:

Medical Physics, 2021, v. 48, n. 3, p. 953, doi. 10.1002/mp.14675

By:

Zwan, Benjamin J.;
Caillet, Vincent;
Booth, Jeremy T.;
Colvill, Emma;
Fuangrod, Todsaporn;
O'Brien, Ricky;
Briggs, Adam;
O'Connor, Daryl J.;
Keall, Paul J.;
Greer, Peter B.

Publication type:

Article

Adapting to the motion of multiple independent targets using multileaf collimator tracking for locally advanced prostate cancer: Proof of principle simulation study.

Published in:

Medical Physics, 2021, v. 48, n. 1, p. 114, doi. 10.1002/mp.14572

By:

Hewson, Emily A.;
Ge, Yuanyuan;
O'Brien, Ricky;
Roderick, Stephanie;
Bell, Linda;
Poulsen, Per R.;
Eade, Thomas;
Booth, Jeremy T.;
Keall, Paul J.;
Nguyen, Doan T.

Publication type:

Article

First experimental investigation of simultaneously tracking two independently moving targets on an MRI‐linac using real‐time MRI and MLC tracking.

Published in:

Medical Physics, 2020, v. 47, n. 12, p. 6440, doi. 10.1002/mp.14536

By:

Liu, Paul Z. Y.;
Dong, Bing;
Nguyen, Doan Trang;
Ge, Yuanyuan;
Hewson, Emily A.;
Waddington, David E. J.;
O'Brien, Ricky;
Liney, Gary P.;
Keall, Paul J.

Publication type:

Article

Toward improved 3D carotid artery imaging with Adaptive CaRdiac cOne BEAm computed Tomography (ACROBEAT).

Published in:

Medical Physics, 2020, v. 47, n. 11, p. 5749, doi. 10.1002/mp.14462

By:

Reynolds, Tess;
Dillon, Owen;
Prinable, Joseph;
Whelan, Brendan;
Keall, Paul J.;
O'Brien, Ricky T.

Publication type:

Article

Dual cardiac and respiratory gated thoracic imaging via adaptive gantry velocity and projection rate modulation on a linear accelerator: A Proof‐of‐Concept Simulation Study.

Published in:

Medical Physics, 2019, v. 46, n. 9, p. 4116, doi. 10.1002/mp.13670

By:

Reynolds, Tess;
Shieh, Chun‐Chien;
Keall, Paul J.;
O'Brien, Ricky T.

Publication type:

Article

A deep learning framework for automatic detection of arbitrarily shaped fiducial markers in intrafraction fluoroscopic images.

Published in:

Medical Physics, 2019, v. 46, n. 5, p. 2286, doi. 10.1002/mp.13519

By:

Mylonas, Adam;
Keall, Paul J.;
Booth, Jeremy T.;
Shieh, Chun‐Chien;
Eade, Thomas;
Poulsen, Per Rugaard;
Nguyen, Doan Trang

Publication type:

Article

Potential improvements of lung and prostate MLC tracking investigated by treatment simulations.

Published in:

Medical Physics, 2018, v. 45, n. 5, p. 2218, doi. 10.1002/mp.12868

By:

Toftegaard, Jakob;
Keall, Paul J.;
O'Brien, Ricky;
Ruan, Dan;
Ernst, Floris;
Homma, Noriyasu;
Ichiji, Kei;
Poulsen, Per Rugaard

Publication type:

Article

A comparison of gantry‐mounted x‐ray‐based real‐time target tracking methods.

Published in:

Medical Physics, 2018, v. 45, n. 3, p. 1222, doi. 10.1002/mp.12765

By:

Montanaro, Tim;
Nguyen, Doan Trang;
Keall, Paul J.;
Booth, Jeremy;
Caillet, Vincent;
Eade, Thomas;
Haddad, Carol;
Shieh, Chun‐Chien

Publication type:

Article

Future of medical physics: Real-time MRI-guided proton therapy.

Published in:

Medical Physics, 2017, v. 44, n. 8, p. e77, doi. 10.1002/mp.12371

By:

Oborn, Bradley M.;
Dowdell, Stephen;
Metcalfe, Peter E.;
Crozier, Stuart;
Mohan, Radhe;
Keall, Paul J.

Publication type:

Article

Commissioning and quality assurance for VMAT delivery systems: An efficient time-resolved system using real-time EPID imaging.

Published in:

Medical Physics, 2017, v. 44, n. 8, p. 3909, doi. 10.1002/mp.12387

By:

Zwan, Benjamin J.;
Barnes, Michael P.;
Hindmarsh, Jonathan;
Lim, Seng B.;
Lovelock, Dale M.;
Fuangrod, Todsaporn;
O'Connor, Daryl J.;
Keall, Paul J.;
Greer, Peter B.

Publication type:

Article

Quantifying the reproducibility of lung ventilation images between 4-Dimensional Cone Beam CT and 4-Dimensional CT.

Published in:

Medical Physics, 2017, v. 44, n. 5, p. 1771, doi. 10.1002/mp.12199

By:

Woodruff, Henry C.;
Shieh, Chun‐Chien;
Hegi‐Johnson, Fiona;
Keall, Paul J.;
Kipritidis, John

Publication type:

Article

A longitudinal four-dimensional computed tomography and cone beam computed tomography dataset for image-guided radiation therapy research in lung cancer.

Published in:

Medical Physics, 2017, v. 44, n. 2, p. 762, doi. 10.1002/mp.12059

By:

Hugo, Geoffrey D.;
Weiss, Elisabeth;
Sleeman, William C.;
Balik, Salim;
Keall, Paul J.;
Lu, Jun;
Williamson, Jeffrey F.

Publication type:

Article

Online 4D ultrasound guidance for real-time motion compensation by MLC tracking.

Published in:

Medical Physics, 2016, v. 43, n. 10, p. 9695, doi. 10.1118/1.4962932

By:

Ipsen, Svenja;
Bruder, Ralf;
O’Brien, Rick;
Keall, Paul J.;
Schweikard, Achim;
Poulsen, Per R.

Publication type:

Article

The integration of MRI in radiation therapy: collaboration of radiographers and radiation therapists.

Published in:

Journal of Medical Radiation Sciences, 2017, v. 64, n. 1, p. 61, doi. 10.1002/jmrs.225

By:

Rai, Robba;
Kumar, Shivani;
Batumalai, Vikneswary;
Elwadia, Doaa;
Ohanessian, Lucy;
Juresic, Ewa;
Cassapi, Lynette;
Vinod, Shalini K.;
Holloway, Lois;
Keall, Paul J.;
Liney, Gary P.

Publication type:

Article

Measurement of preoperative lobar lung function with computed tomography ventilation imaging: progress towards rapid stratification of lung cancer lobectomy patients with abnormal lung function.

Published in:

European Journal of Cardio-Thoracic Surgery, 2016, v. 49, n. 4, p. 1075, doi. 10.1093/ejcts/ezv276

By:

Eslick, Enid M.;
Bailey, Dale L.;
Harris, Benjamin;
Kipritidis, John;
Stevens, Mark;
Li, Bob T.;
Bailey, Elizabeth;
Gradinscak, Denis;
Pollock, Sean;
Htun, Chris;
Turner, Robin;
Eade, Thomas;
Aslani, Ali;
Snowdon, Graeme;
Keall, Paul J.

Publication type:

Article

Medical physics challenges in clinical MR-guided radiotherapy.

Published in:

2020

By:

Kurz, Christopher;
Buizza, Giulia;
Landry, Guillaume;
Kamp, Florian;
Rabe, Moritz;
Paganelli, Chiara;
Baroni, Guido;
Reiner, Michael;
Keall, Paul J.;
van den Berg, Cornelis A. T.;
Riboldi, Marco

Publication type:

journal article

Measurements of human tolerance to horizontal rotation within an MRI scanner: Towards gantry‐free radiation therapy.

Published in:

Journal of Medical Imaging & Radiation Oncology, 2021, v. 65, n. 1, p. 112, doi. 10.1111/1754-9485.13130

By:

Buckley, Jarryd G;
Smith, Allan "Ben";
Sidhom, Mark;
Rai, Robba;
Liney, Gary P;
Dowling, Jason A;
Metcalfe, Peter E;
Holloway, Lois C;
Keall, Paul J

Publication type:

Article

Reconstruction of implanted marker trajectories from cone-beam CT projection images using interdimensional correlation modeling.

Published in:

Medical Physics, 2016, v. 43, n. 8, p. 4643, doi. 10.1118/1.4958678

By:

Chung, Hyekyun;
Poulsen, Per Rugaard;
Keall, Paul J.;
Cho, Seungryong;
Cho, Byungchul

Publication type:

Article

Technical Note: A novel leaf sequencing optimization algorithm which considers previous underdose and overdose events for MLC tracking radiotherapy.

Published in:

Medical Physics, 2016, v. 43, n. 1, p. 132, doi. 10.1118/1.4937781

By:

Wisotzky, Eric;
O'Brien, Ricky;
Keall, Paul J.

Publication type:

Article

Estimating lung ventilation directly from 4D CT Hounsfield unit values.

Published in:

Medical Physics, 2016, v. 43, n. 1, p. 33, doi. 10.1118/1.4937599

By:

Kipritidis, John;
Hofman, Michael S.;
Siva, Shankar;
Callahan, Jason;
Le Roux, Pierre Yves;
Woodruff, Henry C.;
Counter, William B.;
Keall, Paul J.

Publication type:

Article

Measuring interfraction and intrafraction lung function changes during radiation therapy using four-dimensional cone beam CT ventilation imaging.

Published in:

Medical Physics, 2015, v. 42, n. 3, p. 1255, doi. 10.1118/1.4907991

By:

Kipritidis, John;
Hugo, Geoffrey;
Weiss, Elisabeth;
Williamson, Jeffrey;
Keall, Paul J.

Publication type:

Article

The first clinical treatment with kilovoltage intrafraction monitoring (KIM): A real-time image guidance method.

Published in:

Medical Physics, 2015, v. 42, n. 1, p. 354, doi. 10.1118/1.4904023

By:

Keall, Paul J.;
Aun Ng, Jin;
O'Brien, Ricky;
Colvill, Emma;
Huang, Chen‐Yu;
Rugaard Poulsen, Per;
Fledelius, Walther;
Juneja, Prabhjot;
Simpson, Emma;
Bell, Linda;
Alfieri, Florencia;
Eade, Thomas;
Kneebone, Andrew;
Booth, Jeremy T.

Publication type:

Article

Registration of clinical volumes to beams-eye-view images for real-time tracking.

Published in:

Medical Physics, 2014, v. 41, n. 12, p. 1, doi. 10.1118/1.4900603

By:

Bryant, Jonathan H.;
Rottmann, Joerg;
Lewis, John H.;
Mishra, Pankaj;
Keall, Paul J.;
Berbeco, Ross I.

Publication type:

Article

Magnetization curves of sintered heavy tungsten alloys for applications in MRI-guided radiotherapy.

Published in:

Medical Physics, 2014, v. 41, n. 6, p. 1, doi. 10.1118/1.4873679

By:

Kolling, Stefan;
Oborn, Bradley M.;
Keall, Paul J.;
Horvat, Joseph

Publication type:

Article

Toward the development of intrafraction tumor deformation tracking using a dynamic multi-leaf collimator.

Published in:

Medical Physics, 2014, v. 41, n. 6, p. 1, doi. 10.1118/1.4873682

By:

Ge, Yuanyuan;
O’Brien, Ricky T.;
Shieh, Chun‐Chien;
Booth, Jeremy T.;
Keall, Paul J.

Publication type:

Article

Image quality in thoracic 4D cone-beam CT: A sensitivity analysis of respiratory signal, binning method, reconstruction algorithm, and projection angular spacing.

Published in:

Medical Physics, 2014, v. 41, n. 4, p. 1, doi. 10.1118/1.4868510

By:

Shieh, Chun‐Chien;
Kipritidis, John;
O'Brien, Ricky T.;
Kuncic, Zdenka;
Keall, Paul J.

Publication type:

Article

A novel electron gun for inline MRI-linac configurations.

Published in:

Medical Physics, 2014, v. 41, n. 2, p. n/a, doi. 10.1118/1.4860660

By:

Constantin, Dragoş E.;
Holloway, Lois;
Keall, Paul J.;
Fahrig, Rebecca

Publication type:

Article

The potential of positron emission tomography for intratreatment dynamic lung tumor tracking: A phantom study.

Published in:

Medical Physics, 2014, v. 41, n. 2, p. n/a, doi. 10.1118/1.4861816

By:

Yang, Jaewon;
Yamamoto, Tokihiro;
Mazin, Samuel R.;
Graves, Edward E.;
Keall, Paul J.

Publication type:

Article

The first clinical implementation of electromagnetic transponder-guided MLC tracking.

Published in:

Medical Physics, 2014, v. 41, n. 2, p. n/a, doi. 10.1118/1.4862509

By:

Keall, Paul J.;
Colvill, Emma;
O’Brien, Ricky;
Ng, Jin Aun;
Poulsen, Per Rugaard;
Eade, Thomas;
Kneebone, Andrew;
Booth, Jeremy T.

Publication type:

Article

Validating and improving CT ventilation imaging by correlating with ventilation 4D-PET/CT using <sup>68</sup>Ga-labeled nanoparticles.

Published in:

Medical Physics, 2014, v. 41, n. 1, p. n/a, doi. 10.1118/1.4856055

By:

Kipritidis, John;
Siva, Shankar;
Hofman, Michael S.;
Callahan, Jason;
Hicks, Rodney J.;
Keall, Paul J.

Publication type:

Article

Time-resolved dose distributions to moving targets during volumetric modulated arc therapy with and without dynamic MLC tracking.

Published in:

Medical Physics, 2013, v. 40, n. 11, p. 111723, doi. 10.1118/1.4826161

By:

Ravkilde, Thomas;
Keall, Paul J.;
Grau, Cai;
Høyer, Morten;
Poulsen, Per R.

Publication type:

Article

The impact of leaf width and plan complexity on DMLC tracking of prostate intensity modulated arc therapy.

Published in:

Medical Physics, 2013, v. 40, n. 11, p. 111717, doi. 10.1118/1.4824434

By:

Pommer, Tobias;
Falk, Marianne;
Poulsen, Per Rugaard;
Keall, Paul J.;
O’Brien, Ricky T.;
Munck af Rosenschöld, Per

Publication type:

Article

4D CT lung ventilation images are affected by the 4D CT sorting method.

Published in:

Medical Physics, 2013, v. 40, n. 10, p. 101907, doi. 10.1118/1.4820538

By:

Yamamoto, Tokihiro;
Kabus, Sven;
Lorenz, Cristian;
Johnston, Eric;
Maxim, Peter G.;
Diehn, Maximilian;
Eclov, Neville;
Barquero, Cristian;
Loo, Billy W.;
Keall, Paul J.

Publication type:

Article

Increasing dependence on industry-funded research creates higher risk of biased reporting in medical physics.

Published in:

Medical Physics, 2013, v. 40, n. 10, p. 100601, doi. 10.1118/1.4812894

By:

Dieterich, Sonja;
Keall, Paul J.;
Orton, Colin G.

Publication type:

Article

Respiratory triggered 4D cone-beam computed tomography: A novel method to reduce imaging dose.

Published in:

Medical Physics, 2013, v. 40, n. 4, p. 041901, doi. 10.1118/1.4793724

By:

Cooper, Benjamin J.;
O'Brien, Ricky T.;
Balik, Salim;
Hugo, Geoffrey D.;
Keall, Paul J.

Publication type:

Article

The impact of audio-visual biofeedback on 4D PET images: Results of a phantom study.

Published in:

Medical Physics, 2012, v. 39, n. 2, p. 1046, doi. 10.1118/1.3679012

By:

Yang, Jaewon;
Yamamoto, Tokihiro;
Cho, Byungchul;
Seo, Youngho;
Keall, Paul J.

Publication type:

Article

Modeling the TrueBeam linac using a CAD to Geant4 geometry implementation: Dose and IAEA-compliant phase space calculations.

Published in:

Medical Physics, 2011, v. 38, n. 7, p. 4018, doi. 10.1118/1.3598439

By:

Constantin, Magdalena;
Perl, Joseph;
LoSasso, Tom;
Salop, Arthur;
Whittum, David;
Narula, Anisha;
Svatos, Michelle;
Keall, Paul J.

Publication type:

Article

A study of the effect of in-line and perpendicular magnetic fields on beam characteristics of electron guns in medical linear accelerators.

Published in:

Medical Physics, 2011, v. 38, n. 7, p. 4174, doi. 10.1118/1.3600695

By:

Constantin, Dragoş E.;
Fahrig, Rebecca;
Keall, Paul J.

Publication type:

Article

A method for robust segmentation of arbitrarily shaped radiopaque structures in cone-beam CT projections.

Published in:

Medical Physics, 2011, v. 38, n. 4, p. 2151, doi. 10.1118/1.3555295

By:

Poulsen, Per Rugaard;
Fledelius, Walther;
Keall, Paul J.;
Weiss, Elisabeth;
Lu, Jun;
Brackbill, Emily;
Hugo, Geoffrey D.

Publication type:

Article

Four-dimensional computed tomography pulmonary ventilation images vary with deformable image registration algorithms and metrics.

Published in:

Medical Physics, 2011, v. 38, n. 3, p. 1348, doi. 10.1118/1.3547719

By:

Yamamoto, Tokihiro;
Kabus, Sven;
Klinder, Tobias;
von Berg, Jens;
Lorenz, Cristian;
Loo, Billy W.;
Keall, Paul J.

Publication type:

Article