Smallest variation in suv pet study to study

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Webb1 juli 2016 · Both static and parametric PET images were analyzed, with quantitative parameters (MATV, SUV max, SUV mean, heterogeneity) being extracted from the … Webb19 apr. 2024 · In their study, a maximum COV of 10.7% was observed for a 13-mm sphere even after harmonization. In the present study, however, the COV was less than 10% …

Influence of Statistical Fluctuation on Reproducibility and …

WebbSUV mean had the smallest relative difference for both ROI levels. For lesion ROI, SUV mean was the most repeatable (interquartile range, 2.5%) followed by SUV max (4.4%) and SUV total (5.1%). For patient ROI, SUV mean was the most repeatable (2.0%), followed by SUV total (2.6%) and SUV max (3.3%). FIGURE 2. Webb1 jan. 2012 · PET-based treatment response assessment typically measures the change in maximum standardized uptake value (SUV max ), which is adversely affected by noise. … chinese food bank street

Variance of SUVs for FDG-PET/CT is greater in clinical practice …

Webb23 aug. 2024 · In total, 99 hypermetabolic lesions were identified on the standard PET scans by the fourth reader. CCC and Bland–Altman plots for SUV mean of aortic blood pool, liver, and right gluteus muscle... Webb1 jan. 2015 · Our workflow provided realistic simulated FDG-PET studies of patients with solitary pulmonary nodules, with different lesion sizes and well-known SUVs. This enabled us to evaluate the accuracy and variability of three commonly used methods of SUV calculation (SUV max, SUV mean and SUV 50) under different conditions. WebbWe report the largest technical variation of the SUV parameters for the smallest sphere, and the smallest variation for the largest sphere. The expected variation at 150 s … chinese food banff

Method to Determine the Statistical Technical Variability …

Maximum Standardized Uptake Value - an overview - ScienceDirect

WebbThe authors also suggested SUV max as the best prognostic factor for disease-free survival. 67 In a meta-analysis by Berghmans and colleagues investigating the prognostic value of the pretreatment SUV max in patients with NSCLC involving 13 studies with a total of 1474 patients, the SUV max was found to be a reliable prognostic marker. 68 In … WebbNot only visual interpretation for lesion detection, staging, and characterization, but also quantitative treatment response assessment are key roles for 18 F-FDG PET in oncology. In multicenter oncology PET studies, image quality standardization and SUV harmonization are essential to obtain reliable study outcomes. grand hyatt hotel san antonio txWebb6 juni 2024 · The sources of variation can be biological or technical. In this study, we present a method to determine the statistical technical variation of SUV in PET images. … grand hyatt hotel san antonio

"Webb27 maj 2011 · Evaluation of a cumulative SUV-volume histogram method for parameterizing heterogeneous intratumoural FDG uptake in non-small cell lung cancer PET studies. ... inverse standard deviation of SUV within a volume of interest (1/SD) and inverse coefficient of variation [1/COV, calculated as (SUV mean /SD)×100%] within the … " - Smallest variation in suv pet study to study

Smallest variation in suv pet study to study

Semiquantitative Parameters in PSMA-Targeted PET Imaging with …

Webb3 sep. 2016 · Correction of SUV with the plasma glucose level can be used (e.g., SUV × glucose concentration/100 mg/dL). This is primarily useful for serial monitoring in the same patient, but inter-study SUV variability in normal tissues will be increased. Partial volume effects. Small lesions may have artifactually low SUVs from partial volume effects. Webb20 juni 2024 · In pre-harmonized conditions, coefficient of variations (COVs) among the SPECT/CT systems were greater than 10% for all quantitative metrics in three of the spheres, SUVmax and SUVmean, in one of the spheres. In contrast, all metrics except SUVmax in the 17-mm sphere yielded less than 10% of COVs after harmonization.

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Webb18 aug. 2011 · Phantom data study. The SUV ref filters computed for the four reconstruction protocols, in order to minimise the difference in RCs when compared to the reference values published by Boellaard et al. [], are shown in Table 1.The data reconstructed with OSEM required the smallest additional filter (3.3-mm FWHM), while … Webb1 nov. 2024 · Some variation was observed for the measured SUVs. The measured SUVs for the actual SUV of 2.0 showed the largest variation among those of 2.0, 4.0, and 8.0, …

Webb1 juni 2015 · We have shown that there is a large variation in %error in SUV measures across patients. SUVpeak is the least variable and kurtosis and skewness parameters are less reliable thatn SUVs.Higher... WebbVariance of Standardized Uptake Values for FDG-PET/CT Greater in Clinical Practice than Under Ideal Study Settings Virendra Kumar1, Kavindra Nath1,#, Claudia G. Berman2, Jongphil Kim3, Tawee Tanvetyanon4, Alberto A Chiappori4, Robert A. Gatenby2, Robert J. Gillies1,2, and Edward A. Eikman2,@ 1Department of Imaging, H Lee Moffitt Cancer …

Webb15 maj 2024 · Background The current de facto standard for quantification of tumor metabolism in oncological whole-body PET is the standardized uptake value (SUV) approach. SUV determination requires accurate scanner calibration. Residual inaccuracies of the calibration lead to biased SUV values. Especially, this can adversely affect … WebbResults:The average SUVmeanfor all selected organs measured was 6.6 ± 1.8 for the right lacrimal gland, 6.4 ± 1.8 for the left lacrimal gland, 9.1 ± 2.0 for the right parotid gland, 9.0 ± 2.1 for the left parotid gland, 9.6 ± 2.3 for the right submandibular gland, 9.4 ± 2.2 for the left submandibular gland, 5.0 ± 0.7 for the whole liver, 5.1 ± …

Webb27 maj 2011 · To this end, lung cancer simulations were performed and the method was applied to several FDG PET studies of tumours with variable heterogeneity. Materials and methods Cumulative SUV-volume histograms Four strategies for …

Webb20 feb. 2024 · The Bland and Altman analysis showed the largest and smallest variance for ... (CI) was achieved for 18 F-FDG (95% CI: − 0.29, + 0.33 SUV, mean = 0.02 SUV), whereas the smallest variance was ... The qualitative and quantitative performance of the proposed method demonstrated its potential in clinical brain PET studies ... chinese food bank street new london ctWebbOur study showed overall high correlation for SUV measurements obtained from MR attenuation correction compared with CT attenuation correction, although PET/MRI … chinese food bardmoorWebb10 dec. 2024 · We evaluated the SUV variability in whole-body FDG-PET scans of patients with suspected or proven cancer using an EARL-accredited conventional and digital PET … chinese food barbertonWebb11 okt. 2024 · We measured both SUVmaxand SUVmeanin the blood pool and liver of patients with a normal BMI (18.5-24.9) and a high BMI (≥30) (obese). In all patients, we calculated LBM via an equation using patient height and weight and corrected all SUVs to SULs. Mean (±SD) SUVs and SULs were compared under various circumstances. grand hyatt hotel seattleWebb16 juni 2024 · In that setting, recent test-retest studies have shown repeatability of SUV measurements better than those published in former generation PET systems, including standalone PET. A specific issue is the variability in SUV calculated by different software packages, as was pointed out by, among others, Pierce et al. [ 11 ]. chinese food banning caWebbPurpose: In this study, we measured test-retest reproducibility of SUV measurements under clinical practice conditions and recorded recognized deviations from protocol … grand hyatt hotel in san antonio txWebb1 sep. 2015 · When the CV background was smaller than 10%, the CV of SUV max in hot spheres also resulted in below 10% in this study. On the other hand, the Japanese … grand hyatt hotels rewards programs