Motion correction in dual gated cardiac PET using mass-preserving image registration

F Gigengack, L Ruthotto, M Burger… - IEEE transactions on …, 2011 - ieeexplore.ieee.org
Respiratory and cardiac motion leads to image degradation in positron emission
tomography (PET) studies of the human heart. In this paper we present a novel approach to …

Four-dimensional image reconstruction strategies in cardiac-gated and respiratory-gated PET imaging

A Rahmim, J Tang, H Zaidi - PET clinics, 2013 - pet.theclinics.com
Positron emission tomography (PET) is a powerful modality for numerous oncologic and
cardiac imaging applications. However, when PET is used for chest or upper abdomen …

Numerical surrogates for human observers in myocardial motion evaluation from SPECT images

T Marin, MM Kalayeh, FM Parages… - IEEE transactions on …, 2013 - ieeexplore.ieee.org
In medical imaging, the gold standard for image-quality assessment is a task-based
approach in which one evaluates human observer performance for a given diagnostic task …

Compute-unified device architecture implementation of a block-matching algorithm for multiple graphical processing unit cards

F Massanes, M Cadennes… - Journal of electronic …, 2011 - spiedigitallibrary.org
We describe and evaluate a fast implementation of a classical block-matching motion
estimation algorithm for multiple graphical processing units (GPUs) using the compute …

Estimation of left ventricular motion from cardiac gated tagged MRI using an image-matching deformable mesh model

FM Parages, TS Denney, H Gupta… - … on Radiation and …, 2017 - ieeexplore.ieee.org
In this paper, we propose a deformable mesh model (DMM) method for left-ventricular (LV)
motion-estimation from cardiac-gated tagged magnetic resonance imaging (MRI). DMM …

Numerical observer for cardiac motion assessment using machine learning

T Marin, MM Kalayeh, PH Pretorius… - Medical Imaging …, 2011 - spiedigitallibrary.org
In medical imaging, image quality is commonly assessed by measuring the performance of a
human observer performing a specific diagnostic task. However, in practice studies involving …

Improved PET/CT respiratory motion compensation by incorporating changes in lung density

EC Emond, A Bousse, L Brusaferri… - … on Radiation and …, 2020 - ieeexplore.ieee.org
Positron emission tomography/computed tomography (PET/CT) lung imaging is highly
sensitive to motion. Although several techniques exist to diminish motion artifacts, a few …

Motion compensation for PET image reconstruction using deformable tetrahedral meshes

P Manescu, H Ladjal, J Azencot… - Physics in Medicine & …, 2015 - iopscience.iop.org
Respiratory-induced organ motion is a technical challenge to PET imaging. This motion
induces displacements and deformation of the organs tissues, which need to be taken into …

A centerline-based model morphing algorithm for patient-specific finite element modeling of the left ventricle

S Behdadfar, L Navarro, J Sundnes… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
Goal: Hexahedral automatic model generation is a recurrent problem in computer vision and
computational biomechanics. It may even become a challenging problem when one wants …

Numerical observer for cardiac motion assessment using a linear discriminant

T Marin, PH Pretorius, Y Yang… - … & Medical Imaging …, 2010 - ieeexplore.ieee.org
In this work, we aim to develop a numerical observer for cardiac motion assessment in
cardiac-gated single photon emission computed tomography (SPECT) imaging. In clinical …