Synergistic motion compensation strategies for positron emission tomography when acquired simultaneously with magnetic resonance imaging

I Polycarpou, G Soultanidis… - … Transactions of the …, 2021 - royalsocietypublishing.org
Subject motion in positron emission tomography (PET) is a key factor that degrades image
resolution and quality, limiting its potential capabilities. Correcting for it is complicated due to …

New challenges for PET image reconstruction for total-body imaging

N Efthimiou - PET clinics, 2020 - pet.theclinics.com
Approximately 5 years ago, the National Institutes of Health–funded EXPLORER Consortium
was formed to design and develop the first Total Body PET (TBP) scanner for clinical usage …

TOF-PET image reconstruction with multiple timing kernels applied on Cherenkov radiation in BGO

N Efthimiou, N Kratochwil, S Gundacker… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
Today Time-of-Flight (TOF), in PET scanners, assumes a single, well-defined timing
resolution for all events. However, recent BGO-Cherenkov detectors, combining prompt …

DAEGAN: Generative adversarial network based on dual-domain attention-enhanced encoder-decoder for low-dose PET imaging

S Chen, X Tian, Y Wang, Y Song, Y Zhang… - … Signal Processing and …, 2023 - Elsevier
Background Positron emission tomography (PET) is a valuable medical imaging modality
utilized in both clinical and preclinical settings. There is a growing concern regarding the …

Data-driven, energy-based method for estimation of scattered events in positron emission tomography

N Efthimiou, JS Karp, S Surti - Physics in Medicine & Biology, 2022 - iopscience.iop.org
Objective. Scattered events add bias in the reconstructed positron emission tomography
(PET) images. Our objective is the accurate estimation of the scatter distribution, required for …

Monte Carlo simulations of the GE Signa PET/MR for different radioisotopes

PRRV Caribé, S Vandenberghe, A Diogo… - Frontiers in …, 2020 - frontiersin.org
NEMA characterization of PET systems is generally based on 18F because it is the most
relevant radioisotope for the clinical use of PET. 18F has a half-life of 109.7 min and decays …

Synthetic PET via domain translation of 3-D MRI

A Rajagopal, Y Natsuaki, K Wangerin… - IEEE transactions on …, 2022 - ieeexplore.ieee.org
Historically, patient datasets have been used to develop and validate various reconstruction
algorithms for PET/MRI and PET/CT. To enable such algorithm development, without the …

Use of non-Gaussian time-of-flight kernels for image reconstruction of Monte Carlo simulated data of ultra-fast PET scanners

N Efthimiou, K Thielemans, E Emond, C Cawthorne… - EJNMMI physics, 2020 - Springer
Introduction Time-of-flight (TOF) positron emission tomography (PET) scanners can provide
significant benefits by improving the noise properties of reconstructed images. In order to …

3D printing 18F radioactive phantoms for PET imaging

D Gillett, D Marsden, S Ballout, B Attili, N Bird, S Heard… - EJNMMI physics, 2021 - Springer
Purpose Phantoms are routinely used in molecular imaging to assess scanner performance.
However, traditional phantoms with fillable shapes do not replicate human anatomy. 3D …

[HTML][HTML] Large-Scale 3D Reconstruction from Multi-View Imagery: A Comprehensive Review

H Luo, J Zhang, X Liu, L Zhang, J Liu - Remote Sensing, 2024 - mdpi.com
Three-dimensional reconstruction is a key technology employed to represent virtual reality in
the real world, which is valuable in computer vision. Large-scale 3D models have broad …