Evidence map›Paper›PMID 26426969›Full record

Trial reportNuclear medicine communications2016

Consistency of metabolic tumor volume of non-small-cell lung cancer primary tumor measured using 18F-FDG PET/CT at two different tracer uptake times.

Haiping Liu, Ping Chen, Kristen Wroblewski, Peng Hou, Chen-Peng Zhang, Yulei Jiang, Yonglin Pu

Abstract readClinical Trial
In one paragraph

Trial report in Nuclear medicine communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Haiping LiuaPET/CT Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong bDepartment of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China Departments of cPublic Health Sciences dRadiology, University of Chicago, Chicago, Illinois, USA.
Ping Chen
Kristen Wroblewski
Peng Hou
Chen-Peng Zhang
Yulei Jiang
Yonglin Pu

Funding

Re-Engineering Translational Research at the University of ChicagoUL1TR000430 · NCATS · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2012 to 2016
$20.2M
Developing a PET Volumetric Staging System for NSCLC: a Complement to TNM StagingR21CA181885 · NCI · UNIVERSITY OF CHICAGO · PI JIANG, YULEI, PU, YONGLIN · 2014 to 2015
$390k
NCATS NIH HHS UL1 TR000430NCI NIH HHS R21 CA181885NCI NIH HHS R21CA181885
6 · The paper itself

Abstract

objectivesThe objective of this study was to test the hypothesis that the metabolic tumor volume (MTV) of primary non-small-cell lung cancer is not sensitive to differences in F-fluorodeoxyglucose (F-FDG) uptake time, and to compare this consistency of MTV measurements with that of standardized uptake value (SUV) and total lesion glycolysis (TLG).

methodsUnder Institutional Review Board approval, 134 consecutive patients with histologically proven non-small-cell lung cancer underwent F-FDG PET/computed tomography scanning at about 1 h (early) and 2 h (delayed) after intravenous injection of F-FDG. MTV, SUV, and TLG of the primary tumor were all measured. Student's t-test and Wilcoxon's signed-rank test for paired data were used to compare MTV, SUV, and TLG between the two scans. The intraclass correlation coefficient (ICC) was used to assess agreement in PET parameters between the two scans and between the measurements made by two observers.

resultsMTV was not significantly different (P=0.17) between the two scans. However, SUVmax, SUVmean, SUVpeak, and TLG increased significantly from the early to the delayed scans (P<0.0001 for all). The median percentage change between the two scans in MTV (1.65%) was smaller than in SUVmax (11.76%), SUVmean(10.57%), SUVpeak(13.51%), and TLG (14.34%); the ICC of MTV (0.996) was greater than that of SUVmax (0.933), SUVmean (0.952), SUVpeak (0.928), and TLG (0.982). Interobserver agreement between the two radiologists was excellent for MTV, SUV, and TLG on both scans (ICC: 0.934-0.999).

conclusionMTV is not sensitive to common clinical variations in F-FDG uptake time, its consistency is greater than that of SUVmax, SUVmean, SUVpeak, and TLG, and it has excellent interobserver agreement.

Indexed as

Fluorodeoxyglucose F18Multimodal ImagingPositron-Emission TomographyTomography, X-Ray ComputedTumor BurdenAgedBiological TransportCarcinoma, Non-Small-Cell LungFemaleGlycolysisHumansKineticsLung NeoplasmsMaleMiddle AgedObserver VariationFluorodeoxyglucose F18

Identifiers

PMID26426969
PMCPMC4654972

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.