Lei Qiu

Department of Radiation Oncology
Assistant Professor

Radiation Oncology
A1230, 1365 Clifton Rd, NE

Overview

Lei "Richard" Qiu, PhD, DABR, joined Emory University in July 2019 as an Assistant Professor of Medical Physics in the Department of Radiation Oncology. He earned his BS in Physics from Shandong University in 2009 and his PhD in Physics from Case Western Reserve University in 2014. He completed his Therapeutic Medical Physics Residency at the Cleveland Clinic in 2019, where he was Chief Resident.He currently serves as the Associate Director of Emory's Therapeutic Medical Physics Residency Program. Based primarily at Winship Cancer Institute's Clifton campus, his responsibilities include clinical service, research, teaching, and community engagement.

Clinical Service: Dr. Qiu leads the Eye Plaque Radiotherapy and HDR Prostate Brachytherapy services. He transitioned Eye Plaque Radiotherapy Treatment Planning in-house, enhancing efficiency and reducing costs. He also oversees quality assurance for medical linear accelerators and provides support for various radiation therapy services.

Research: Dr. Qiu's research focuses on adaptive radiation therapy, including auto-segmentation and adaptive planning using deep learning. He collaborates on projects to advance treatments for lung and prostate cancer, as well as ocular melanoma.

Teaching: Dr. Qiu teachers and mentors postdoctoral fellows, residents, and graduate students, contributing to their development and success in the field.

Community engagement: Dr. Qiu actively serves on Campus Life Committee and Honorary Degrees Committee within the Emory University Senate. He also participates in various committees within national professional organizations, including the American Association of Physicists in Medicine (AAPM) and the International Society for Optics and Photonics (SPIE), promoting leadership and mentorship.

Academic Appointment

Associate Director, Therapeutic Medical Physics Residency, Radiation Oncology, Emory University
Assistant Professor, Radiation Oncology, Emory University

Education

Degrees

Ph.D from Case Western Reserve University

Research

Publications

Optimization-based image reconstruction regularized with inter-spectral structural similarity for limited-angle dual-energy cone-beam CT.
Phys Med Biol Volume: 70
07/11/2025 Authors: Peng J; Wang T; Xie H; Qiu RLJ; Chang C-W; Roper J; Yu DS; Tang X; Yang X
Detection and segmentation of brain metastases on MRI using 3D-MedDCNet.
Med Phys Volume: 52 Page(s): e18001
07/01/2025 Authors: Wu Y; Li Y; Hu M; Chang C-W; Qiu RLJ; Wang T; Shu H-K; Mao H; Tian Z; Yang X
CT-guided CBCT multi-organ segmentation using a multi-channel conditional consistency diffusion model for lung cancer radiotherapy.
Biomed Phys Eng Express Volume: 11
06/20/2025 Authors: Chen X; Qiu RLJ; Pan S; Shelton JW; Yang X; Kesarwala AH
MRI super-resolution reconstruction using efficient diffusion probabilistic model with residual shifting.
Phys Med Biol Volume: 70
06/16/2025 Authors: Safari M; Wang S; Eidex Z; Li Q; Qiu RLJ; Middlebrooks EH; Yu DS; Yang X
A review of artificial intelligence in brachytherapy.
J Appl Clin Med Phys Volume: 26 Page(s): e70034
06/01/2025 Authors: Chen J; Qiu RLJ; Wang T; Momin S; Yang X
Self-supervised adversarial diffusion models for fast MRI reconstruction.
Med Phys Volume: 52 Page(s): 3888 - 3899
06/01/2025 Authors: Safari M; Eidex Z; Pan S; Qiu RLJ; Yang X
MRI motion correction via efficient residual-guided denoising diffusion probabilistic models.
ArXiv
05/06/2025 Authors: Safari M; Wang S; Li Q; Eidex Z; Qiu RLJ; Chang C-W; Mao H; Yang X
MRI super-resolution reconstruction using efficient diffusion probabilistic model with residual shifting.
ArXiv
04/26/2025 Authors: Safari M; Wang S; Eidex Z; Li Q; Qiu RLJ; Middlebrooks EH; Yu DS; Yang X
Evaluation and failure analysis of four commercial deep learning-based autosegmentation software for abdominal organs at risk.
J Appl Clin Med Phys Volume: 26 Page(s): e70010
04/01/2025 Authors: Fan M; Wang T; Lei Y; Patel PR; Dresser S; Ghavidel BB; Qiu RLJ; Zhou J; Luca K; Kayode O
Unsupervised Bayesian generation of synthetic CT from CBCT using patient-specific score-based prior.
Med Phys Volume: 52 Page(s): 2238 - 2246
04/01/2025 Authors: Peng J; Gao Y; Chang C-W; Qiu R; Wang T; Kesarwala A; Yang K; Scott J; Yu D; Yang X
T1-contrast enhanced MRI generation from multi-parametric MRI for glioma patients with latent tumor conditioning.
Med Phys Volume: 52 Page(s): 2064 - 2073
04/01/2025 Authors: Eidex Z; Safari M; Qiu RLJ; Yu DS; Shu H-K; Mao H; Yang X
RoMedFormer: A Rotary-Embedding Transformer Foundation Model for 3D Genito-Pelvic Structure Segmentation in MRI and CT

03/18/2025 Authors: Li Y; Hu M; Qiu RLJ; Thor M; Williams A; Marshall D; Yang X
Triad: Vision Foundation Model for 3D Magnetic Resonance Imaging.

03/10/2025 Authors: Wang S; Safari M; Li Q; Chang C-W; Qiu RL; Roper J; Yu DS; Yang X
Automatic medical imaging segmentation via self-supervising large-scale convolutional neural networks.
Radiother Oncol Volume: 204 Page(s): 110711
03/01/2025 Authors: Li Y; Wynne JF; Wu Y; Qiu RLJ; Tian S; Wang T; Patel PR; Yu DS; Yang X
A Physics-Informed Deep Learning Model for MRI Brain Motion Correction.
ArXiv
02/13/2025 Authors: Safari M; Wang S; Eidex Z; Qiu R; Chang C-W; Yu DS; Yang X
Advancing MRI Reconstruction: A Systematic Review of Deep Learning and Compressed Sensing Integration.
ArXiv
02/01/2025 Authors: Safari M; Eidex Z; Chang C-W; Qiu RLJ; Yang X
Deep learning based apparent diffusion coefficient map generation from multi-parametric MR images for patients with diffuse gliomas.
Med Phys Volume: 52 Page(s): 847 - 855
02/01/2025 Authors: Eidex Z; Safari M; Wynne J; Qiu RLJ; Wang T; Viar-Hernandez D; Shu H-K; Mao H; Yang X
Cross-shaped windows transformer with self-supervised pretraining for clinically significant prostate cancer detection in bi-parametric MRI.
Med Phys Volume: 52 Page(s): 993 - 1004
02/01/2025 Authors: Li Y; Wynne J; Wang J; Qiu RLJ; Roper J; Pan S; Jani AB; Liu T; Patel PR; Mao H
Evaluating the Efficacy and Safety of Stereotactic Arrhythmia Radioablation in Ventricular Tachycardia: A Comprehensive Systematic Review and Meta-Analysis.
ArXiv
01/31/2025 Authors: Shah KD; Chang C-W; Tian S; Patel P; Qiu R; Roper J; Zhou J; Tian Z; Yang X
Exploration of an adaptive proton therapy strategy using CBCT with the concept of digital twins.
Phys Med Biol Volume: 70
01/17/2025 Authors: Chang C-W; Tian Z; Qiu RLJ; Scott Mcginnis H; Bohannon D; Patel P; Wang Y; Yu DS; Patel SA; Zhou J
Using a patient-specific diffusion model to generate CBCT-based synthetic CTs for CBCT-guided adaptive radiotherapy.
Med Phys Volume: 52 Page(s): 471 - 480
01/01/2025 Authors: Chen X; Qiu RLJ; Wang T; Chang C-W; Chen X; Shelton JW; Kesarwala AH; Yang X
Machine learning in image-based outcome prediction after radiotherapy: A review.
J Appl Clin Med Phys Volume: 26 Page(s): e14559
01/01/2025 Authors: Yuan X; Ma C; Hu M; Qiu RLJ; Salari E; Martini R; Yang X
CBCT-based synthetic CT image generation using a diffusion model for CBCT-guided lung radiotherapy.
Med Phys Volume: 51 Page(s): 8168 - 8178
11/01/2024 Authors: Chen X; Qiu RLJ; Peng J; Shelton JW; Chang C-W; Yang X; Kesarwala AH
Prediction of early recurrence of adult-type diffuse gliomas following radiotherapy using multi-modal magnetic resonance images.
Med Phys Volume: 51 Page(s): 8638 - 8648
11/01/2024 Authors: Salari E; Chen X; Wynne JF; Qiu RLJ; Roper J; Shu H-K; Yang X
A Review of Artificial Intelligence in Brachytherapy.
ArXiv
09/25/2024 Authors: Chen J; Qiu RLJ; Wang T; Momin S; Yang X
Image-domain material decomposition for dual-energy CT using unsupervised learning with data-fidelity loss.
Med Phys Volume: 51 Page(s): 6185 - 6195
09/01/2024 Authors: Peng J; Chang C-W; Xie H; Qiu RLJ; Roper J; Wang T; Ghavidel B; Tang X; Yang X
CT-based synthetic iodine map generation using conditional denoising diffusion probabilistic model.
Med Phys Volume: 51 Page(s): 6246 - 6258
09/01/2024 Authors: Gao Y; Xie H; Chang C-W; Peng J; Pan S; Qiu RLJ; Wang T; Ghavidel B; Roper J; Zhou J
CT-based synthetic contrast-enhanced dual-energy CT generation using conditional denoising diffusion probabilistic model.
Phys Med Biol Volume: 69
08/02/2024 Authors: Gao Y; Qiu RLJ; Xie H; Chang C-W; Wang T; Ghavidel B; Roper J; Zhou J; Yang X
Unsupervised Bayesian Generation of Synthetic CT from CBCT Using Patient-Specific Score-Based Prior

06/21/2024 Authors: Peng J; Gao Y; Chang C-W; Qiu R; Wang T; Kesarwala A; Yang K; Scott J; Yu D; Yang X
Unsupervised Bayesian Generation of Synthetic CT from CBCT Using Patient-Specific Score-Based Prior.

06/21/2024 Authors: Peng J; Gao Y; Chang C-W; Qiu R; Wang T; Kesarwala A; Yang K; Scott J; Yu D; Yang X
Cardiac MRI segmentation using shifted-window multilayer perceptron mixer networks.
Phys Med Biol Volume: 69
05/30/2024 Authors: Abouei E; Pan S; Hu M; Kesarwala AH; Qiu RLJ; Zhou J; Roper J; Yang X
Unsupervised MRI motion artifact disentanglement: introducing MAUDGAN.
Phys Med Biol Volume: 69
05/30/2024 Authors: Safari M; Yang X; Chang C-W; Qiu RLJ; Fatemi A; Archambault L
Adaptive Proton Therapy Using CBCT-Guided Digital Twins

05/16/2024 Authors: Chang C-W; Tian Z; Qiu RLJ; McGinnis HS; Bohannon D; Patel P; Wang Y; Yu DS; Patel SA; Zhou J
Advancing medical imaging with language models: featuring a spotlight on ChatGPT.
Phys Med Biol Volume: 69
05/03/2024 Authors: Hu M; Qian J; Pan S; Li Y; Qiu RLJ; Yang X
Fast MRI Reconstruction Using Deep Learning-based Compressed Sensing: A Systematic Review.

04/30/2024 Authors: Safari M; Eidex Z; Chang C-W; Qiu RLJ; Yang X
Synthetic CT generation from MRI using 3D transformer-based denoising diffusion model.
Med Phys Volume: 51 Page(s): 2538 - 2548
04/01/2024 Authors: Pan S; Abouei E; Wynne J; Chang C-W; Wang T; Qiu RLJ; Li Y; Peng J; Roper J; Patel P
CBCT-Based synthetic CT image generation using conditional denoising diffusion probabilistic model.
Med Phys Volume: 51 Page(s): 1847 - 1859
03/01/2024 Authors: Peng J; Qiu RLJ; Wynne JF; Chang C-W; Pan S; Wang T; Roper J; Liu T; Patel PR; Yu DS
Assessing Bilateral Neurovascular Bundles Function with Pulsed Wave Doppler Ultrasound: Implications for Reducing Erectile Dysfunction Following Prostate Radiotherapy

02/29/2024 Authors: Wang J; Yang X; Zhou B; Sohn J; Qiu R; Patel P; Jani AB; Liu T
High-resolution MRI synthesis using a data-driven framework with denoising diffusion probabilistic modeling.
Phys Med Biol Volume: 69
02/05/2024 Authors: Chang C-W; Peng J; Safari M; Salari E; Pan S; Roper J; Qiu RLJ; Gao Y; Shu H-K; Mao H
Deep learning in MRI-guided radiation therapy: A systematic review.
J Appl Clin Med Phys Volume: 25 Page(s): e14155
02/01/2024 Authors: Eidex Z; Ding Y; Wang J; Abouei E; Qiu RLJ; Liu T; Wang T; Yang X
Deep learning-assisted lesion segmentation in PET/CT imaging: A feasibility study for salvage radiation therapy in prostate cancer.
Oncoscience Volume: 11 Page(s): 49 - 50
01/01/2024 Authors: Qiu RLJ; Chang C-W; Yang X
MGMT promoter methylation prediction based on multiparametric MRI via vision graph neural network.
J Med Imaging (Bellingham) Volume: 11 Page(s): 014503
01/01/2024 Authors: Hu M; Yang K; Wang J; Qiu RLJ; Roper J; Kahn S; Shu H-K; Yang X
IODINE-125 PLAQUE BRACHYTHERAPY FOR DIFFUSE CHOROIDAL HEMANGIOMA.
Retin Cases Brief Rep Volume: 18 Page(s): 51 - 58
01/01/2024 Authors: Azarcon CP; Qiu RLJ; Sobol EK; Hubbard GB; Craven CM; Bergstrom CS; Wells JR
Hippocampus substructure segmentation using morphological vision transformer learning.
Phys Med Biol Volume: 68
12/01/2023 Authors: Lei Y; Ding Y; Qiu RLJ; Wang T; Roper J; Fu Y; Shu H-K; Mao H; Yang X
A novel direction modulated brachytherapy technique for urethra sparing in high-dose-rate brachytherapy of prostate cancer.
Radiother Oncol Volume: 186 Page(s): 109801
09/01/2023 Authors: Meftahi M; Qiu RLJ; Patel P; Song WY; Yang X
Hippocampus Substructure Segmentation Using Morphological Vision Transformer Learning.

06/14/2023 Authors: Lei Y; Ding Y; Qiu RLJ; Wang T; Roper J; Fu Y; Shu H-K; Mao H; Yang X
2D medical image synthesis using transformer-based denoising diffusion probabilistic model.
Phys Med Biol Volume: 68
05/05/2023 Authors: Pan S; Wang T; Qiu RLJ; Axente M; Chang C-W; Peng J; Patel AB; Shelton J; Patel SA; Roper J
Cross-Shaped Windows Transformer with Self-supervised Pretraining for Clinically Significant Prostate Cancer Detection in Bi-parametric MRI

04/30/2023 Authors: Li Y; Wynne J; Wang J; Qiu RLJ; Roper J; Pan S; Jani AB; Liu T; Patel PR; Mao H
Deep Learning in MRI-guided Radiation Therapy: A Systematic Review.

03/30/2023 Authors: Eidex Z; Ding Y; Wang J; Abouei E; Qiu RLJ; Liu T; Wang T; Yang X
MRI Simulation Protocol Optimization for Ocular Melanoma Proton Therapy Treatment Planning
Volume: 49 Page(s): E488 - E489
06/01/2022 Authors: Goette M; Slopsema R; Dhabaan A; Qiu L; Qian D; Shu H
Daily Coverage Assessment Using Deep Learning Generated Synthetic CT for Lung SBRT Patients
Volume: 49 Page(s): E730 - E731
06/01/2022 Authors: Qiu R; Lei Y; Shelton J; Higgins K; Bradley J; Curran W; Liu T; Kesarwala A; Yang X
Evaluation of Commercial AI Segmentation Software
Volume: 49 Page(s): E552 - E552
06/01/2022 Authors: Roper J; Wang T; Lei Y; Dresser S; Ghavidel B; Qiu L; Zhou J; Kayode O; Luca K; Bradley J
Deep learning-based thoracic CBCT correction with histogram matching.
Biomed Phys Eng Express Volume: 7
10/29/2021 Authors: Qiu RLJ; Lei Y; Shelton J; Higgins K; Bradley JD; Curran WJ; Liu T; Kesarwala AH; Yang X
In vivo assessment of the safety of standard fractionation Temporally Feathered Radiation Therapy (TFRT) for head and neck squamous cell carcinoma: An R-IDEAL Stage 1/2a first-in-humans/feasibility demonstration of new technology implementation.
Radiother Oncol Volume: 163 Page(s): 39 - 45
10/01/2021 Authors: Parsai S; Qiu RLJ; Qi P; Sedor G; Fuller CD; Murray E; Majkszak D; Dorio N; Koyfman S; Woody N
Thoracic CBCT-Based Synthetic CT for Lung Stereotactic Body Radiation Therapy
Volume: 48
06/01/2021 Authors: Lei Y; Qiu L; Kesarwala A; Roper J; Higgins K; Bradley J; Liu T; Yang X
Automatic multi-catheter detection using deeply supervised convolutional neural network in MRI-guided HDR prostate brachytherapy.
Med Phys Volume: 47 Page(s): 4115 - 4124
09/01/2020 Authors: Dai X; Lei Y; Zhang Y; Qiu RLJ; Wang T; Dresser SA; Curran WJ; Patel P; Liu T; Yang X
Technical Note: A step-by-step guide to Temporally Feathered Radiation Therapy planning for head and neck cancer.
J Appl Clin Med Phys Volume: 21 Page(s): 209 - 215
07/01/2020 Authors: Parsai S; Qiu RLJ; Qi P; Alfonso JCL; Donaghue J; Murray E; Majkszak D; Dorio N; Fuller CD; Brock K
Multi-needle Localization with Attention U-Net in US-guided HDR Prostate Brachytherapy.
Med Phys Volume: 47 Page(s): 2735 - 2745
07/01/2020 Authors: Zhang Y; Lei Y; Qiu RLJ; Wang T; Wang H; Jani AB; Curran WJ; Patel P; Liu T; Yang X
MRI Multi-Needle Reconstruction Using Deep Learning for MRI-Guided Prostate Cancer Brachytherapy
Volume: 47 Page(s): E366 - E367
06/01/2020 Authors: Dai X; Lei Y; Zhang Y; Qiu L; Wang T; Curran W; Patel P; Liu T; Yang X
Development of topological insulator and topological crystalline insulator nanostructures.
Nanotechnology Volume: 31 Page(s): 192001
05/08/2020 Authors: Liu C-W; Wang Z; Qiu RLJ; Gao XPA
Deep Learning in Multi-organ Segmentation

01/28/2020 Authors: Lei Y; Fu Y; Wang T; Qiu RLJ; Curran WJ; Liu T; Yang X
Qiu and Gao reply.
Phys Rev Lett Volume: 110 Page(s): 249702
06/14/2013 Authors: Qiu RLJ; Gao XPA
Metal-insulator transition in variably doped (Bi(1-x)Sb(x))2Se3 nanosheets.
Nanoscale Volume: 5 Page(s): 4337 - 4343
05/21/2013 Authors: Lee CH; He R; Wang Z; Qiu RLJ; Kumar A; Delaney C; Beck B; Kidd TE; Chancey CC; Sankaran RM
Ambipolar surface conduction in ternary topological insulator Bi(Te-xSex) nanoribbons.
ACS Nano Volume: 7 Page(s): 2126 - 2131
03/26/2013 Authors: Wang Z; Qiu RLJ; Lee CH; Zhang Z; Gao XPA
One-dimensional quantum confinement effect modulated thermoelectric properties in InAs nanowires.
Nano Lett Volume: 12 Page(s): 6492 - 6497
12/12/2012 Authors: Tian Y; Sakr MR; Kinder JM; Liang D; Macdonald MJ; Qiu RLJ; Gao H-J; Gao XPA
Observation of infrared-active modes in Raman scattering from topological insulator nanoplates.
Nanotechnology Volume: 23 Page(s): 455703
11/16/2012 Authors: He R; Wang Z; Qiu RLJ; Delaney C; Beck B; Kidd TE; Chancey CC; Gao XPA
Connecting the reentrant insulating phase and the zero-field metal-insulator transition in a 2D hole system.
Phys Rev Lett Volume: 108 Page(s): 106404
03/09/2012 Authors: Qiu RLJ; Gao XPA; Pfeiffer LN; West KW
Two-dimensional transport-induced linear magneto-resistance in topological insulator Bi2Se3 nanoribbons.
ACS Nano Volume: 5 Page(s): 7510 - 7516
09/27/2011 Authors: Tang H; Liang D; Qiu RLJ; Gao XPA
Magneto-transport Effects in Topological Insulator Bi$_2$Se$_3$ Nanoribbons

03/31/2010 Authors: Tang H; Liang D; Qiu RLJ; Gao XPA

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