Smallest variation in suv pet study to study

Author: iruc

August undefined, 2024

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% … Webbmeasure SUV repeatability, (2) summarize the different methodologic approaches and complexities when analyzing SUV test–retest data, and (3) understand the implications …

Low-count whole-body PET with deep learning in a multicenter and …

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. 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 … high blood pressure and meth

Standards for PET Image Acquisition and Quantitative Data

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 ± … 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. Webb24 jan. 2013 · The sources of the standard deviation can be divided in biological and technical. In this study we present a method to determine the technical variation of the … how far is mathews al from montgomery al

Semiquantitative Parameters in PSMA-Targeted PET Imaging with …

Method to determine the statistical technical variability of SUV ...

Webb1 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 … 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... high blood pressure and muscle twitchingWebb6 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 … how far is maui from oahu

"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, 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 " - Smallest variation in suv pet study to study

Smallest variation in suv pet study to study

Method to determine the statistical technical variability of SUV ...

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... Webb1 maj 2009 · As a result, some of the variations in the literature on SUV-based patient outcomes are explained by differences in 18F-FDG PET study methods. Various …

Did you know?

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 … Webb7 mars 2024 · Tissue and organ MR FDG values showed little variation, comparable to corresponding SUV variation. All regional TACs were in line with previously published FDG kinetics, and the multiparametric metrics correlated well with manual TAC-based calculations (r 2 = 0.97, p < 0.0001).

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. … Webb1 juli 2016 · Both static and parametric PET images were analyzed, with quantitative parameters (MATV, SUV max, SUV mean, heterogeneity) being extracted from the …

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. 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.

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 ].

WebbPurpose: In this study, we measured test-retest reproducibility of SUV measurements under clinical practice conditions and recorded recognized deviations from protocol … high blood pressure and migrainesWebb1 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. high blood pressure and msWebb16 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 ]. high blood pressure and medicationWebb6 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 … high blood pressure and meloxicamWebb27 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 … how far is massachusetts from phillyWebbOur 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 … high blood pressure and migraine headachesWebb1 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 … high blood pressure and motrin