Interpolated CT for attenuation correction on respiratory gating cardiac SPECT/CT - A simulation study.
Sign Up to like & getrecommendations! Published in 2019 at "Medical physics"
DOI: 10.1002/mp.13513
Abstract: PURPOSE Respiratory gated four-dimensional (4D) single photon emission computed tomography (SPECT) with phase-matched CT reduces respiratory blurring and attenuation correction (AC) artifacts in cardiac SPECT. This study aims to develop and investigate the effectiveness of… read more here.
Keywords: attenuation correction; spect; hct; respiratory ... See more keywords
Deep learning‐based T1‐enhanced selection of linear attenuation coefficients (DL‐TESLA) for PET/MR attenuation correction in dementia neuroimaging
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DOI: 10.1002/mrm.28689
Abstract: The accuracy of existing PET/MR attenuation correction (AC) has been limited by a lack of correlation between MR signal and tissue electron density. Based on our finding that longitudinal relaxation rate, or R1, is associated… read more here.
Keywords: attenuation correction; enhanced selection; deep learning; pet attenuation ... See more keywords
Almost 10 years of PET/MR attenuation correction: the effect on lesion quantification with PSMA: clinical evaluation on 200 prostate cancer patients
Sign Up to like & getrecommendations! Published in 2020 at "European Journal of Nuclear Medicine and Molecular Imaging"
DOI: 10.1007/s00259-020-04957-x
Abstract: Purpose After a decade of PET/MR, the case of attenuation correction (AC) remains open. The initial four-compartment (air, water, fat, soft tissue) Dixon-based AC scheme has since been expanded with several features, the latest being… read more here.
Keywords: attenuation correction; prostate cancer; cancer; quantification ... See more keywords
Imaging coronary plaques using 3D motion-compensated [18F]NaF PET/MR
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DOI: 10.1007/s00259-020-05180-4
Abstract: Cardiac PET has recently found novel applications in coronary atherosclerosis imaging using [18F]NaF as a radiotracer, highlighting vulnerable plaques. However, the resulting uptakes are relatively small, and cardiac motion and respiration-induced movement of the heart… read more here.
Keywords: attenuation correction; motion; pet; 18f naf ... See more keywords
“Virtual” attenuation correction: improving stress myocardial perfusion SPECT imaging using deep learning
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DOI: 10.1007/s00259-022-05735-7
Abstract: Myocardial perfusion imaging (MPI) using single-photon emission computed tomography (SPECT) is widely used for coronary artery disease (CAD) evaluation. Although attenuation correction is recommended to diminish image artifacts and improve diagnostic accuracy, approximately 3/4ths of… read more here.
Keywords: attenuation correction; dlac; perfusion; polar maps ... See more keywords
Deep learning–based attenuation correction for whole-body PET — a multi-tracer study with 18F-FDG, 68 Ga-DOTATATE, and 18F-Fluciclovine
Sign Up to like & getrecommendations! Published in 2022 at "European Journal of Nuclear Medicine and Molecular Imaging"
DOI: 10.1007/s00259-022-05748-2
Abstract: A novel deep learning (DL)-based attenuation correction (AC) framework was applied to clinical whole-body oncology studies using 18F-FDG, 68 Ga-DOTATATE, and 18F-Fluciclovine. The framework used activity (λ-MLAA) and attenuation (µ-MLAA) maps estimated by the maximum… read more here.
Keywords: attenuation correction; dotatate 18f; 18f fdg; 18f fluciclovine ... See more keywords
Low-dose attenuation correction in diagnosis of non-alcoholic fatty liver disease
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DOI: 10.1007/s00261-017-1166-8
Abstract: BackgroundNon-enhanced computed tomography (CT) is a valuable modality in the diagnosis of non-alcoholic fatty liver disease (NAFLD). However, it is not clear if low-dose CT attenuation correction (CTAC) scans have the same accuracy to diagnose… read more here.
Keywords: attenuation correction; dose attenuation; low dose; fatty liver ... See more keywords
Evaluating the effectiveness of a single CT method for attenuation correction in stress-rest myocardial perfusion imaging with thallium-201 chloride SPECT
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DOI: 10.1007/s12194-019-00540-8
Abstract: This study aimed to evaluate the effectiveness of a single computed tomography (CT) based attenuation correction method using thallium-201 chloride ( 201 TlCl) in stress-rest myocardial perfusion imaging (MPI). The data of 106 patients who… read more here.
Keywords: spect; stress; stress rest; attenuation correction ... See more keywords
Assessment of attenuation correction for myocardial PET imaging using combined PET/MRI
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DOI: 10.1007/s12350-017-1118-2
Abstract: AbstractObjectiveTo evaluate the frequency of artifacts in MR-based attenuation correction (AC) maps and their impact on the quantitative accuracy of PET-based flow and metabolism measurements in a cohort of consecutive heart failure patients undergoing combined… read more here.
Keywords: attenuation correction; pet; pet imaging; correction ... See more keywords
Incidental finding of COVID-19 pulmonary infiltrates on SPECT/CT attenuation correction CT
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DOI: 10.1007/s12350-020-02178-1
Abstract: We report a 65-year-old man with hypertension, obesity and intermittent cocaine use who presented with two weeks of dyspnea and exertional chest tightness who was admitted for observation and inpatient stress testing. Given clinical suspicion… read more here.
Keywords: attenuation correction; attenuation; finding covid; incidental finding ... See more keywords
Prevalence and clinical significance of incidental findings on CT attenuation correction for myocardial perfusion imaging
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Nuclear Cardiology"
DOI: 10.1007/s12350-020-02499-1
Abstract: The appropriate clinical approach to incidentally detected lesions (IDLs) on CT attenuation correction (CTAC) images in myocardial perfusion imaging (MPI) remains uncertain. We sought to establish their prevalence and clinical significance in a large cohort… read more here.
Keywords: attenuation correction; incidental findings; myocardial perfusion; perfusion imaging ... See more keywords