Improved quantitative 90Y bremsstrahlung SPECT/CT reconstruction with Monte Carlo scatter modeling
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DOI: 10.1002/mp.12597
Abstract: Purpose: In 90Y microsphere radioembolization (RE), accurate post‐therapy imaging‐based dosimetry is important for establishing absorbed dose versus outcome relationships for developing future treatment planning strategies. Additionally, accurately assessing microsphere distributions is important because of concerns… read more here.
Keywords: reconstruction; 90y bremsstrahlung; scatter modeling; scatter ... See more keywords
A weighted rebinned backprojection‐filtration algorithm from partially beam‐blocked data for a single‐scan cone‐beam CT with hybrid type scatter correction
Sign Up to like & getrecommendations! Published in 2019 at "Medical Physics"
DOI: 10.1002/mp.13365
Abstract: PURPOSE Scatter contamination constitutes a dominant source of degradation of image quality in cone-beam computed tomography (CBCT). We have recently developed an analytic image reconstruction method with a scatter correction capability from the partially blocked… read more here.
Keywords: cone; scatter correction; image; beam ... See more keywords
[P099] Comparative assessment of three scatter correction techniques in 99M-TC and 131-I planar imaging
Sign Up to like & getrecommendations! Published in 2018 at "Physica Medica"
DOI: 10.1016/j.ejmp.2018.06.417
Abstract: Purpose The purpose of this study is to evaluate and compare single (SEW), dual (DEW) and triple energy window (TEW) scatter correction techniques, on 99mTc and 131I planar images, based on signal-to-noise ratio (SNR) criterion.… read more here.
Keywords: planar; energy; scatter; scatter correction ... See more keywords
Improved prediction of fuel properties with near-infrared spectroscopy using a complementary sequential fusion of scatter correction techniques.
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DOI: 10.1016/j.talanta.2020.121693
Abstract: Near-infrared (NIR) spectroscopy of fuels can suffer from scattering effects which may mask the signals corresponding to key analytes in the spectra. Therefore, scatter correction techniques are often used prior to any modelling so to… read more here.
Keywords: spectroscopy; scatter correction; fusion; correction techniques ... See more keywords
Septal penetration correction in I-131 imaging following thyroid cancer treatment.
Sign Up to like & getrecommendations! Published in 2018 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/aab13a
Abstract: Whole body gamma camera images acquired after I-131 treatment for thyroid cancer can suffer from collimator septal penetration artefacts because of the high energy of the gamma photons. This results in the appearance of 'spoke'… read more here.
Keywords: correction; gamma camera; septal penetration; deconvolution ... See more keywords
Attenuation and scatter correction in I-123 FP-CIT SPECT do not affect the clinical diagnosis of dopaminergic system neurodegeneration
Sign Up to like & getrecommendations! Published in 2017 at "Medicine"
DOI: 10.1097/md.0000000000008484
Abstract: Abstract The purpose of this study was to assess the influence of different reconstruction factors in N-&ohgr;-fluoropropyl-2&bgr;-carbomethoxy-3&bgr;-(4-I-123 iodophenyl)nortropane (I-123 FP-CIT) single-photon emission computed tomography (SPECT) images for the diagnosis of dopaminergic system neurodegeneration (DSND). Seventy-three… read more here.
Keywords: cit; correction; attenuation scatter; scatter correction ... See more keywords
Monte Carlo-based scatter correction for the SMARTZOOM collimator
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DOI: 10.1186/s40658-020-00318-7
Abstract: Background Myocardial perfusion imaging is a commonly performed SPECT protocol and hence it would be beneficial if its scan duration could be shortened. For traditional gamma cameras, two developments have separately shown to allow for… read more here.
Keywords: collimator; monte carlo; scatter correction; scan duration ... See more keywords
Halo artifacts of indwelling urinary catheter by inaccurate scatter correction in 18F-FDG PET/CT imaging: incidence, mechanism, and solutions
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DOI: 10.1186/s40658-020-00333-8
Abstract: Background Halo artifacts from urinary catheters can occur due to inaccurate scatter correction, and the artifacts affect the tumor visibility in 18 F-FDG PET/CT images. We investigated the incidence rate and the mechanisms of halo-artifact… read more here.
Keywords: scatter correction; halo artifacts; pet images;