Results 1 to 10 of about 78,948 (263)

Generative adversarial network-based attenuation correction for 99mTc-TRODAT-1 brain SPECT [PDF]

open access: yesFrontiers 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]

open access: yesEJNMMI 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

The Impact of Attenuation Correction on Positron Emission Tomography/Computed Tomography and Positron Emission Tomography/Magnetic Resonance Image Quality: A Phantom Study [PDF]

open access: yesJournal of Medical Physics
Objective: 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

Direct attenuation correction for 99mTc-3PRGD2 chest SPECT lung cancer images using deep learning [PDF]

open access: yesFrontiers in Oncology, 2023
IntroductionThe attenuation correction technique of single photon emission computed tomography (SPECT) images is essential for early diagnosis, therapeutic evaluation, and pharmacokinetic studies of lung cancer.
Haiqun Xing   +6 more
doaj   +2 more sources

CT-Based Attenuation Correction Algorithm for Quantitative L-Shell X-Ray Fluorescence Imaging of Gold Nanoparticles in Murine Tumor Tissues [PDF]

open access: yesDiseases
Background: 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

Study on Attenuation Correction for the Reflectivity of X-Band Dual-Polarization Phased-Array Weather Radar Based on a Network with S-Band Weather Radar

open access: yesRemote 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

open access: yes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

Attenuation Correction of the X-Band Dual-Polarization Phased Array Radar Based on Observed Raindrop Size Distribution Characteristics

open access: yesAtmosphere, 2023
X-band dual-polarization phased array radar (XPAR-D) possesses high resolution and plays a significant role in detecting meso- and micro-scale convective systems.
Jiabao Feng   +4 more
doaj   +1 more source

X-Band Radar Attenuation Correction Method Based on LightGBM Algorithm

open access: yesRemote Sensing, 2023
X-band weather radar can provide high spatial and temporal resolution data, which is essential to precipitation observation and prediction of mesoscale and microscale weather.
Qiang Yang   +5 more
doaj   +1 more source

Integrated Correction Algorithm for X Band Dual-Polarization Radar Reflectivity Based on CINRAD/SA Radar

open access: yesAtmosphere, 2020
The values of ratio a of the linear relationship between specific attenuation and specific differential phase vary significantly in convective storms as a result of resonance scattering.
Chao Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy