Zhiwei Zhai

Short Bio

Currently, I am working as a senior AI engineer at BGI Research, Wuhan. Previously, I worked as a Postdoc in the Cardiovascular Lab at the Amsterdam University Medical Centers, under the supervision of Prof. dr. Ivana Išgum. On 10th March 2020, I defended my PhD dissertation at the Division of Image Processing, Leiden University Medical Center, supervised by Dr. Berend C. Stoel and Dr. Marius Staring. Before that, I obtained my Master degree in the Harbin Institute of Technology, School of Computer Science and Technology, supervised by Prof. Yuanzhi Cheng in July 2014. I received Bachelor degree in Department of Mathematics from Harbin Institute of Technology (weihai) in July 2012. I worked with Prof. Dr. Dejun Fan for undergraduate research.

Research Interests

Medical Image Analysis, Artificial Intelligence, Deep Learning, Geometric Deep Learning, Pulmonary Vessel Quantification.

Publications

Learning coronary artery calcium scoring in coronary CTA from non-contrast CT using unsupervised domain adaptation.
Zhiwei Zhai, Sanne GM van Velzen, Nikolas Lessmann, NR Planken, Tim Leiner, Ivana Isgum. [paper][Source code]
Frontiers in Cardiovascular Medicine, 2022.

Generative adversarial network for coronary artery plaque synthesis in coronary CT angiography.
Zhiwei Zhai, Yining Wang, Bob D de Vos, Julia MH Noothout, Nils Planken, Ivana Isgum [paper]
SPIE Medical Imaging, 2022.

Multi-task semi-supervised learning for pulmonary lobe segmentation.
Jingnan Jia, Zhiwei Zhai, M. Els Bakker, I. Hernández Girón, Marius Staring, and Berend C. Stoel. [paper] [Source code]
IEEE International Symposium on Biomedical Imaging (ISBI), 2021.

Optimization of hepatic vasculature segmentation from contrast-enhanced MRI, exploring two 3D Unet modifications and various loss functions.
Ivashchenko, Oleksandra V. *, Zhiwei Zhai *, Berend C. Stoel, and Theo JM Ruers. (* Equal contribution) [paper]
SPIE Medical Imaging, Image-Guided Procedures, Robotic Interventions and Modeling, 2021.

Linking convolutional neural networks with graph convolutional networks: application in pulmonary artery-vein separation.
Zhiwei Zhai , Marius Staring, Xuhui Zhou, Qiuxia Xie, Xiaojuan Xiao, M. Els Bakker, Lucia J. Kroft, Boudewijn P.F. Lelieveldt, Gudula J.A.M. Boon, Frederikus A. Klok, and Berend C. Stoel. [paper] [Source code]
Graph Learning in Medical Imaging, 2019.

Automatic quantitative analysis of pulmonary vascular morphology in CT images.
Zhiwei Zhai , Marius Staring, Irene Hernández Girón, Wouter JH Veldkamp, Lucia J. Kroft, Maarten K. Ninaber, and Berend C. Stoel. [paper] [Source code]
Medical Physics, 2019.

Registration of vascular structures using a hybrid mixture model.
Bayer, Siming, Zhiwei Zhai , Maddalena Strumia, Xiaoguang Tong, Ying Gao, Marius Staring, Berend Stoel et al. [paper]
International journal of computer assisted radiology and surgery, 2019.

Pulmonary Vascular Morphology Associated With Gas Exchange in Systemic Sclerosis Without Lung Fibrosis.
Zhiwei Zhai , Marius Staring, Maarten K. Ninaber, J. K. Vries-Bouwstra, Anne A. Schouffoer, Lucia J. Kroft, Jan Stolk, and Berend C. Stoel. [paper]
Journal of Thoracic Imaging, 2019.

Treatment effect of balloon pulmonary angioplasty in chronic thromboembolic pulmonary hypertension quantified by automatic comparative imaging in computed tomography pulmonary angiography.
Zhiwei Zhai , Hideki Ota, Marius Staring, Jan Stolk, Koichiro Sugimura, Kei Takase, and Berend C. Stoel. [paper]
Investigative radiology, 53(5), 286-292.

Pulmonary vessel tree matching for quantifying changes in vascular morphology.
Zhiwei Zhai , Marius Staring, Hideki Ota, and Berend C. Stoel. [paper] [Source code]
International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI), 2018.

Lung vessel segmentation in CT images using graph-cuts.
Zhiwei Zhai , Marius Staring, and Berend C. Stoel. [paper] [Source code]
SPIE Medical Imaging, Image Processing, 2016.

Talks & Posters

Talk on "Response to balloon pulmonary angioplasty in treated versus untreated pulmonary arteries in CTEPH patients"
European Congress of Radiology 2020.

Talk on "Linking convolutional neural networks with graph convolutional networks: application in pulmonary artery-vein separation"
at MICCAI 2019, Graph Learning in Medical Imaging, Shenzhen, China.

Talk on "Treatment Effect of Balloon Pulmonary Angioplasty in CTEPH, Quantified by Automatic Comparative Imaging in CTPA"
at RSNA, Chicago, USA, December 2017. [Slides]

Poster on "Pulmonary vessel tree matching for quantifying changes in vascular morphology"
at MICCAI 2018 Granada, Spain. [Poster]

Poster on "Lung vessel segmentation in CT images using graph-cuts"
at SPIE Medical Imaging 2016 San Diego, Califomia, USA. [Poster]

Awards

Scholarship of Medical Image Computing Summer School (MedICSS) at UCL, 2017.

PhD Scholarship of China Scholarship Council (CSC), Sep. 2014 -- Sep. 2018

Art is long, life is short.

Miscellany

I like tennis, skating, cooking, reading, travelling.

Art is long, life is short.