Smallest variation in suv pet study to study

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Webb11 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. Webb6 juni 2024 · We report the largest coefficient of variation of the SUV metrics for the smallest sphere and the smallest variation for the largest sphere. The expected …

Repeatability of SUV in Oncologic F-FDG PET - The Journal of …

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 … 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 ± … cheryl kaye

Simulated FDG-PET studies for the assessment of SUV …

WebbAnother limitation of this study is the lack of analysis for interob-server variability in measuring the SUV mean and SUV max of testicular uptake. However, multiple studies have shown high interobserver agreement in assessing SUVs for various masses [ 24 , 25 ]. Webb1 jan. 2015 · 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 … Webbmeasure SUV repeatability, (2) summarize the different methodologic approaches and complexities when analyzing SUV test–retest data, and (3) understand the implications … cheryl kay foundation

Influence of Statistical Fluctuation on Reproducibility and …

Variance of SUVs for FDG-PET/CT is greater in clinical ... - PubMed

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, … Webb27 feb. 2024 · The study showed high robustness (ICC > 0.9): (a) in 64.7% of RFs for segmentation methods using AR60, improved by applying SUV max threshold of 40% (86.5%); (b) in 50.9% of RFs for different SUV max thresholds using AR60; and (c) in 37% of RFs for discretization settings using different segmentation methods. cheryl kaye radioWebb1 jan. 2012 · PET-based treatment response assessment typically measures the change in maximum standardized uptake value (SUV max ), which is adversely affected by noise. … cheryl kay newton

"Webb6 juni 2024 · We report the largest coefficient of variation of the SUV metrics for the smallest sphere and the smallest variation for the largest sphere. The expected … " - Smallest variation in suv pet study to study

Smallest variation in suv pet study to study

Simulated FDG-PET studies for the assessment of SUV quantification …

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 … Webb17 feb. 2024 · In PET studies, standardized uptake value (SUV) is the most widely used semiquantitative measurement of radiotracer uptake, essential for diagnosis and …

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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 … WebbOur study shows significant variability with different trends in different organs. This enforces the need for very strict control of time delays of image acquisition in comparing …

Webb16 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 ]. 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...

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 …

Webb6 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. …

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 … flights to lagos to uyoWebb20 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, SUV max and SUV mean, in one of the spheres. In contrast, all metrics except SUV max in the 17-mm sphere yielded less than 10% of COVs after harmonization. Conclusions flights to lahore virginWebbNot 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. cheryl kay grice obitWebb6 juni 2024 · An observational study was conducted using two surveys that were designed to record key sources of bias and variability in PET imaging. These were distributed to … flights to la in august 2023WebbWe 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 … flights to lahrWebb1 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... flights to lagunitas californiaWebb1 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 … cheryl kay jones