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Tianyu Ma
Researcher at Tsinghua University
Publications - 158
Citations - 940
Tianyu Ma is an academic researcher from Tsinghua University. The author has contributed to research in topics: Detector & Iterative reconstruction. The author has an hindex of 13, co-authored 147 publications receiving 756 citations. Previous affiliations of Tianyu Ma include University at Buffalo & University of Houston.
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An investigation of quantitative accuracy for deep learning based denoising in oncological PET
TL;DR: Full 3D U-net is superior to several existing denoising methods, including Gaussian filter, anatomical-guided non-local mean (NLM) filter, and MAP reconstruction with Quadratic prior and relative difference prior, in terms of superior image quality and trade-off between noise and bias.
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Lutetium oxyorthosilicate (LSO) intrinsic activity correction and minimal detectable target activity study for SPECT imaging with a LSO-based animal PET scanner.
TL;DR: The results showed that LSO background adds concentric ring artifacts to the reconstructed image, and the simple subtraction method can effectively remove these artifacts-the effect of the correction was more visible when the object activity level was near or above the eMDTA.
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Event-by-Event Continuous Respiratory Motion Correction for Dynamic PET Imaging.
Yunhan Yu,Chung Chan,Tianyu Ma,Yaqiang Liu,Jean-Dominique Gallezot,Mika Naganawa,Olivia J. Kelada,Mary Germino,Albert J. Sinusas,Richard E. Carson,Chi Liu +10 more
TL;DR: Respiratory motion can have a substantial impact on dynamic PET in the thorax and abdomen and the INTEX method using continuous external motion data substantially changed parameters in kinetic modeling.
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A novel method to calibrate DOI function of a PET detector with a dual-ended-scintillator readout
TL;DR: A new method has been developed that requires only a uniform flood source to irradiate a crystal array without the need to locate the interaction positions, and calculates DOI functions based solely on the uniform probability distribution of interactions over DOI positions without knowledge or assumption of detector responses.
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Scatter and crosstalk corrections for (99m)Tc/(123)I dual-radionuclide imaging using a CZT SPECT system with pinhole collimators
Peng Fan,Brian Hutton,Maria Holstensson,Michael Ljungberg,P. Hendrik Pretorius,Rameshwar Prasad,Tianyu Ma,Yaqiang Liu,Shi Wang,Stephanie Thorn,Mitchel R. Stacy,Albert J. Sinusas,Chi Liu +12 more
TL;DR: A scatter and crosstalk correction method for (99m)Tc/(123)I dual-radionuclide imaging for a CZT-based dedicated cardiac SPECT system with pinhole collimators and is validated using Monte Carlo simulation, line source experiment, anthropomorphic torso phantom studies, and patient studies.