Generative adversarial network-based attenuation correction for 99mTc-TRODAT-1 brain SPECT [PDF]
Frontiers in Medicine, 2023 BackgroundAttenuation correction (AC) is an important correction method to improve the quantification accuracy of dopamine transporter (DAT) single photon emission computed tomography (SPECT).
Yu Du +9 more
doaj +2 more sources
A review of PET attenuation correction methods for PET-MR [PDF]
EJNMMI Physics, 2023 Despite being thirteen years since the installation of the first PET-MR system, the scanners constitute a very small proportion of the total hybrid PET systems installed.
Georgios Krokos +3 more
doaj +2 more sources
Synthetic Attenuation Correction Maps for SPECT Imaging Using Deep Learning: A Study on Myocardial Perfusion Imaging [PDF]
Diagnostics, 2023 (1) Background: The CT-based attenuation correction of SPECT images is essential for obtaining accurate quantitative images in cardiovascular imaging.
Mariana Andrea Prieto Canalejo +5 more
doaj +2 more sources
The Impact of Attenuation Correction on Positron Emission Tomography/Computed Tomography and Positron Emission Tomography/Magnetic Resonance Image Quality: A Phantom Study [PDF]
Journal of Medical PhysicsObjective: The quality of positron emission tomography/computed tomography (PET/CT) and PET/magnetic resonance (MR) images is a critical factor affecting the diagnostic reliability of clinical studies.
Yagmur Idil Ulusoy +2 more
doaj +2 more sources
Attenuation Correction of PET/MR Imaging [PDF]
Magnetic Resonance Imaging Clinics of North America, 2017 PET/MR is a promising multimodality imaging approach. Attenuation is by far the largest correction required for quantitative PET imaging. MR-based attenuation correction have been extensively pursued, especially for brain imaging, in the past several years. In this article, we review atlas and direct imaging MR-based PET attenuation correction methods.
Hongyu An, Yasheng Chen
exaly +3 more sources
CT-Based Attenuation Correction Algorithm for Quantitative L-Shell X-Ray Fluorescence Imaging of Gold Nanoparticles in Murine Tumor Tissues [PDF]
DiseasesBackground: Gold nanoparticles (GNPs) are widely used in nanomedicine as drug carriers, including in targeted radionuclide therapy where therapeutic radionuclides are bound to GNPs. Quantitative assessment of their biodistribution is essential.
Marin Lohff +9 more
doaj +2 more sources
Importance of Attenuation Correction (AC) for Small Animal PET Imaging
Diagnostics, 2012 The purpose of this study was to investigate whether a correction for annihilation photon attenuation in small objects such as mice is necessary. The attenuation recovery for specific organs and subcutaneous tumors was investigated.
Henrik H. El Ali +4 more
doaj +3 more sources
Remote Sensing, 2023 X-band dual-polarization phased-array weather radars (X-PARs) have been used in South China extensively. Eliminating the attenuation and system bias of X-band radar data is the key to utilizing the advantage of X-PAR networks.
Fei Geng, Liping Liu
doaj +1 more source
A reflectivity factor correction algorithm for X-band phased array radars
暴雨灾害, 2023 The difference between reflectivity factors observed by different radars observing the same target affects the performance of the multi-radar mosaic. For X-band radars without beam blocking, this difference is mainly caused by calibration deviation and ...
Lefu YU +3 more
doaj +1 more source
Multiview Attenuation Estimation and Correction [PDF]
Journal of Mathematical Imaging and Vision, 2019 Measuring attenuation coefficients is a fundamental problem that can be solved with diverse techniques such as X-ray or optical tomography and lidar. We propose a novel approach based on the observation of a sample from a few different angles. This principle can be used in existing devices such as lidar or various types of fluorescence microscopes.
Debarnot, Valentin +2 more
openaire +5 more sources