Attenuation correction in emission tomography using the emission data—a review
The problem of attenuation correction (AC) for quantitative positron emission tomography
(PET) had been considered solved to a large extent after the commercial availability of …
(PET) had been considered solved to a large extent after the commercial availability of …
ML-reconstruction for TOF-PET with simultaneous estimation of the attenuation factors
In positron emission tomography (PET), attenuation correction is typically done based on
information obtained from transmission tomography. Recent studies show that time-of-flight …
information obtained from transmission tomography. Recent studies show that time-of-flight …
LSO background radiation as a transmission source using time of flight
H Rothfuss, V Panin, A Moor, J Young… - Physics in Medicine …, 2014 - iopscience.iop.org
Abstract LSO scintillators (Lu 2 Sio 5: Ce) have a background radiation which originates
from the isotope Lu-176 that is present in natural occurring lutetium. The decay that occurs in …
from the isotope Lu-176 that is present in natural occurring lutetium. The decay that occurs in …
Transmission-less attenuation correction in time-of-flight PET: analysis of a discrete iterative algorithm
The maximum likelihood attenuation correction factors (MLACF) algorithm has been
developed to calculate the maximum-likelihood estimate of the activity image and the …
developed to calculate the maximum-likelihood estimate of the activity image and the …
Simultaneous reconstruction of the activity image and registration of the CT image in TOF-PET
Previously, maximum-likelihood methods have been proposed to jointly estimate the activity
image and the attenuation image or the attenuation sinogram from time-of-flight (TOF) …
image and the attenuation image or the attenuation sinogram from time-of-flight (TOF) …
Reconstruction with partially known attenuation information in time of flight positron emission tomography
Reconstruction in positron emission tomography is per formed with partially known
attenuation. A PET-CT scanner is used to generate a PET image with time of flight emission …
attenuation. A PET-CT scanner is used to generate a PET image with time of flight emission …
[HTML][HTML] Research on combustion flow field imaging method based on ray casting algorithm
M Yao, Y Zhang, M Zhao, R Guo, J Xu - Aip Advances, 2019 - pubs.aip.org
Measurement of flame or combustion is an important method to estimate combustion quality,
study the performance of engine and develop renewable energy sources. This paper …
study the performance of engine and develop renewable energy sources. This paper …
Evaluation of MLACF based calculated attenuation brain PET imaging for FDG patient studies
Calculating attenuation correction for brain PET imaging rather than using CT presents
opportunities for low radiation dose applications such as pediatric imaging and serial scans …
opportunities for low radiation dose applications such as pediatric imaging and serial scans …
Reconstruction of uniform sensitivity emission image with partially known axial attenuation information in PET-CT scanners
In PET-CT the axial length of image reconstruction is defined by the CT scan, which delivers
an axial extend-dependent radiation dose. The beginning and end scanning points for CT …
an axial extend-dependent radiation dose. The beginning and end scanning points for CT …