Results 121 to 130 of about 8,952 (260)

Computationally efficient x-ray simulation framework using parameterized material attenuation models in anatomically detailed imaging. [PDF]

Med Phys
Nassi M, Mikerov M, Michielsen K, Sechopoulos I.   +3 more
europepmc   +1 more source

Differential Progression of Neuroinflammation in Patients with Isolated Rapid‐Eye‐Movement Sleep Behavior Disorder

Movement Disorders, EarlyView.
Abstract Background Neuroinflammation, measured using [11C](R)‐PK11195 positron emission tomography (PET), has been reported in isolated rapid‐eye‐movement sleep behavior disorder (iRBD), but its temporal progression is unknown. Objective The aim was to assess longitudinal progression of neuroinflammation in iRBD patients and its relationship with ...
Andreas Myhre Baun, Alex Iranzo, Miriam Højholt Terkelsen, Rainer Hinz, Morten Gersel Stokholm, Kristian Stær, Mónica Serradel, Marit Otto, Kristina Bacher Svendsen, Alicia Garrido, Dolores Vilas, Arne Møller, Carles Gaig, Eduardo Tolosa, David J. Brooks, Per Borghammer, Simon Fristed Eskildsen, Nicola Pavese   +17 more
wiley   +1 more source

Inverse consistency error for validating deformable image registration: an explorative study on computational phantoms. [PDF]

Phys Imaging Radiat Oncol
Loi G, Fusella M, Zara S, Vagni M, Michielli N, Zaccaria O, Placidi L, Franco P, Molinari F, Fiandra C.   +9 more
europepmc   +1 more source

Quantitative Imaging of Pyruvate Metabolism in a Patient With Anaplastic Thyroid Cancer

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Magnetic resonance imaging using hyperpolarized (HP) [1‐13C]‐pyruvate enables assessment of pyruvate metabolism in vivo and offers new insight into metabolic changes in response to cancer therapy. Widely used semi‐quantitative metrics of pyruvate metabolism can be affected by physiological factors that are extrinsic to intracellular ...
James A. Bankson, Joshua S. Niedzielski, Collin J. Harlan, Yunyun Chen, Christopher M. Walker, Philip L. Lorenzi, Lin Tan, Vikas Kundra, Matthew E. Merritt, Mukundan Ragavan, Dawid Schellingerhout, Renjie He, Yao Ding, Sahana Datar, Qing Wang, Christine B. Peterson, Clifton D. Fuller, Vlad C. Sandulache, Stephen Y. Lai   +18 more
wiley   +1 more source

Data-Driven System Matrix Manipulation Enabling Fast Functional Imaging in Tomography. [PDF]

IEEE Trans Med Imaging
Hu P, Tong X, Lin L, Wang LV.
europepmc   +1 more source

Advancing Quantitative Susceptibility Mapping With 2.5D Diffusion Models for Rapid Intracranial Hemorrhage Quantification

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a generative diffusion model‐based approach for robust and efficient quantitative susceptibility mapping (QSM) reconstruction in intracranial hemorrhage (ICH), applicable to both standard gradient echo (GRE) and rapid echo planar imaging (EPI) acquisitions.
Zhuang Xiong, Yang Gao, Feng Liu, Derek Emery, Ken Butcher, Alan H. Wilman, Hongfu Sun   +6 more
wiley   +1 more source

Diagnostic CT organ dose estimation in whole-body PET/CT examinations-comparison of a patient-specific monte carlo approach and a computational phantom-based CT dosimetry tool. [PDF]

EJNMMI Phys
Verfaillie G, D'Asseler Y, Bacher K.
europepmc   +1 more source

A Hybrid RF Coil for Whole‐Brain Imaging in Non‐Human Primates at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultra‐high field MRI (≥ 7 T) offers unprecedented potential for mapping non‐human primate (NHP) brain function. However, complex electromagnetic systems are required to meet the challenges of UHF imaging and the mechanical demands of awake NHP studies.
Elias Djaballah, Éric Giacomini, Paul‐François Gapais, Michel Luong, Alexis Amadon, Qi Zhu   +5 more
wiley   +1 more source

Application of a virtual imaging framework for investigating a deep learning-based reconstruction method for 3D quantitative photoacoustic computed tomography. [PDF]

Photoacoustics
Cam RM, Park S, Villa U, Anastasio MA.
europepmc   +1 more source

Signal and Contrast Optimization With Predicted Excitations (SCOPE) for Accelerating Large FOV Body Imaging at UHF

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Large FOV turbo‐spin‐echo (TSE) imaging at ultra‐high field (UHF) remains challenging due to B1+ inhomogeneity and peak specific absorption rate (pSAR) limitations. This work presents a new time‐interleaved acquisition of modes (TIAMO) framework called SCOPE (Signal and Contrast Optimization with Predicted Excitations), which overcomes
Tobey D. Haluptzok, Simon Schmidt, Gregory J. Metzger   +2 more
wiley   +1 more source