Radiation Oncology

X. Allen Li, PhD, DABMP, FAAPM

Professor and Chief, Medical Physics

Locations

Radiation Oncology

Contact Information

Education

PhD, Electron Paramagnetic Resonance, Department of Physics, Concordia University, Montreal, Quebec, Canada, 1992
MS, Electron Optics and Electron Microscopy, Department of Physics, Yunnan University, Kunming, China, 1986
BS, Electron Physics, Department of Physics, Yunnan University, Kunming, China, 1983

Biography

Training

Clinical Physics Resident, Ottawa Regional Cancer Centre, Ottawa, Canada (1993-1994)

Postdoctoral Fellow, Ionizing Radiation, National Research Council Canada, Ottawa, Canada (1992-1993)

Certifications

Medical Physics-Radiation Oncology Physics, American Board of Medical Physicists (2001)

Medical Physics-Radiation Oncology Physics, Canadian College of Physicists in Medicine (1994)

Leadership Positions

Chief of Medical Physics, Department of Radiation Oncology

Research Interests

Adaptive radiation therapy
Biological modeling for radiation treatment planning
Anatomical/biological/functional imaging guided radiotherapy planning and delivery
Monte Carlo application to radiotherapy dosimetry

Feasibility of real-time motion tracking using cine MRI during MR-guided radiation therapy for abdominal targets.

(Keiper TD, Tai A, Chen X, Paulson E, Lathuilière F, Bériault S, Hébert F, Cooper DT, Lachaine M, Li XA.) Med Phys. 2020 Aug;47(8):3554-3566 PMID: 32402111 SCOPUS ID: 2-s2.0-85085762226 05/14/2020
4D-MRI driven MR-guided online adaptive radiotherapy for abdominal stereotactic body radiation therapy on a high field MR-Linac: Implementation and initial clinical experience.

(Paulson ES, Ahunbay E, Chen X, Mickevicius NJ, Chen GP, Schultz C, Erickson B, Straza M, Hall WA, Li XA.) Clin Transl Radiat Oncol. 2020 Jul;23:72-79 PMID: 32490218 PMCID: PMC7256110 06/04/2020
Technical Note: Comprehensive performance tests of the first clinical real-time motion tracking and compensation system using MLC and jaws.

(Chen GP, Tai A, Keiper TD, Lim S, Li XA.) Med Phys. 2020 Jul;47(7):2814-2825 PMID: 32277477 PMCID: PMC7496291 SCOPUS ID: 2-s2.0-85084444735 04/12/2020
Auto-segmentation of pancreatic tumor in multi-parametric MRI using deep convolutional neural networks.

(Liang Y, Schott D, Zhang Y, Wang Z, Nasief H, Paulson E, Hall W, Knechtges P, Erickson B, Li XA.) Radiother Oncol. 2020 Apr;145:193-200 PMID: 32045787 SCOPUS ID: 2-s2.0-85078961399 02/12/2020
Improving Structure Delineation for Radiation Therapy Planning Using Dual-Energy CT

(Noid G, Zhu J, Tai A, Mistry N, Schott D, Prah D, Paulson E, Schultz C, Li XA.) Frontiers in Oncology. 28 August 2020;10 SCOPUS ID: 2-s2.0-85090756213 08/28/2020
Initial clinical experience of Stereotactic Body Radiation Therapy (SBRT) for liver metastases, primary liver malignancy, and pancreatic cancer with 4D-MRI based online adaptation and real-time MRI monitoring using a 1.5 Tesla MR-Linac.

(Hal WA, Straza MW, Chen X, Mickevicius N, Erickson B, Schultz C, Awan M, Ahunbay E, Li XA, Paulson ES.) PLoS One. 2020;15(8):e0236570 PMID: 32764748 PMCID: PMC7413561 SCOPUS ID: 2-s2.0-85089301005 08/09/2020
Mapping transient hypoxia from in situ activation of 15O by photon beams: A simulation study

(Dalah EZ, Yang C, Hart VP, Zhang Q, Hu Y, Li XA.) Radiation Physics and Chemistry. July 2020;172 SCOPUS ID: 2-s2.0-85080866649 07/01/2020
4D-MRI driven MR-guided online adaptive radiotherapy for abdominal stereotactic body radiation therapy on a high field MR-Linac: Implementation and initial clinical experience

(Paulson ES, Ahunbay E, Chen X, Mickevicius NJ, Chen GP, Schultz C, Erickson B, Straza M, Hall WA, Li XA.) Clinical and Translational Radiation Oncology. July 2020;23:72-79 SCOPUS ID: 2-s2.0-85084968086 07/01/2020
A Fast Online Replanning Algorithm Based on Intensity Field Projection for Adaptive Radiotherapy.

(Liu X, Liang Y, Zhu J, Yu G, Yu Y, Cao Q, Li XA, Li B.) Front Oncol. 2020;10:287 PMID: 32195188 PMCID: PMC7063069 03/21/2020
A Fast Online Replanning Algorithm Based on Intensity Field Projection for Adaptive Radiotherapy

(Liu X, Liang Y, Zhu J, Yu G, Yu Y, Cao Q, Li XA, Li B.) Frontiers in Oncology. 3 March 2020;10 SCOPUS ID: 2-s2.0-85082647482 03/03/2020
A daily end-to-end quality assurance workflow for MR-guided online adaptive radiation therapy on MR-Linac.

(Chen X, Ahunbay E, Paulson ES, Chen G, Li XA.) J Appl Clin Med Phys. 2020 Jan;21(1):205-212 PMID: 31799753 PMCID: PMC6964761 SCOPUS ID: 2-s2.0-85076117374 12/05/2019
Improving Treatment Response Prediction for Chemoradiation Therapy of Pancreatic Cancer Using a Combination of Delta-Radiomics and the Clinical Biomarker CA19-9.

(Nasief H, Hall W, Zheng C, Tsai S, Wang L, Erickson B, Li XA.) Front Oncol. 2019;9:1464 PMID: 31970088 PMCID: PMC6960122 SCOPUS ID: 2-s2.0-85078248047 01/24/2020