Evidence map›Paper›PMID 36899303›Full record

SynthesisBMC medical imaging2023

Diagnostic performance of diffusion-weighted imaging versus 18F-FDG PET/CT in differentiating pulmonary lesions: an updated meta-analysis of comparative studies.

Jieqiong Liu, Xiaoying Xia, Qiao Zou, Xiaobin Xie, Yongxia Lei, Qi Wan, Xinchun Li

Full text readMeta-Analysis
In one paragraph

Synthesis in BMC medical imaging, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Trial
  2. MRI for Lung Cancer Management: Any Closer to Clinical Application?Journal of magnetic resonance imaging : JMRI · 2026
    Review
  3. Article
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.

Jieqiong Liu *Department of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Yanjiangxilu No 151, Guangzhou, 510120, China.
Xiaoying Xia *Department of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Yanjiangxilu No 151, Guangzhou, 510120, China.
Qiao ZouDepartment of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Yanjiangxilu No 151, Guangzhou, 510120, China.
Xiaobin XieDepartment of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Yanjiangxilu No 151, Guangzhou, 510120, China.
Yongxia LeiDepartment of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Yanjiangxilu No 151, Guangzhou, 510120, China.
Qi WanDepartment of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Yanjiangxilu No 151, Guangzhou, 510120, China. wqgzhmu@163.com.
Xinchun LiDepartment of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Yanjiangxilu No 151, Guangzhou, 510120, China. xinchunli@163.com.

Funding

Guangdong Demonstration Base for Joint Training of Graduate Students 20201Open Project Fund of the Sixth Affiliated Hospital of Guangzhou Medical University 2020-11-370Project of Guangzhou Municipal Health Bureau 20201A010051the Foundation of Guangzhou Municipal Science and Technology Bureau 202102010253
6 · The paper itself

Abstract

objectiveTo compare the diagnostic accuracy of diffusion-weighted imaging (DWI) and 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) for differentiating pulmonary nodules and masses.

methodsWe systematically searched six databases, including PubMed, EMBASE, the Cochrane Library, and three Chinese databases, to identify studies that used both DWI and PET/CT to differentiate pulmonary nodules. The diagnostic performance of DWI and PET/CT was compared and pooled sensitivity and specificity were calculated along with 95% confidence intervals (CIs). The Quality Assessment of Diagnostic Accuracy Studies 2 was used to assess the quality of the included studies, and STATA 16.0 software was utilized to perform statistical analysis.

resultsOverall, 10 studies that enrolled a total of 871 patients with 948 pulmonary nodules were included in this meta-analysis. DWI had greater pooled sensitivity (0.85 [95% CI 0.77-0.90]) and specificity (0.91 [95% CI 0.82-0.96]) than PET/CT (sensitivity, 0.82 [95% CI 0.70-0.90]); specificity, (0.81, [95% CI 0.72-0.87]). The area under the curve of DWI and PET/CT were 0.94 (95% CI 0.91-0.96) and 0.87 (95% CI 0.84-0.90) (Z = 1.58, P > 0.05), respectively. The diagnostic odds ratio of DWI (54.46, [95% CI 17.98-164.99]) was superior to that of PET/CT (15.77, [95% CI 8.19-30.37]). The Deeks' funnel plot asymmetry test showed no publication bias. The Spearman correlation coefficient test revealed no significant threshold effect. Lesion diameter and reference standard could be potential causes for the heterogeneity of both DWI and PET/CT studies, and quantitative or semi-quantitative parameters used would be a potential source of bias for PET/CT studies.

conclusionAs a radiation-free technique, DWI may have similar performance compare with PET/CT in differentiating malignant pulmonary nodules or masses from benign ones.

Indexed as

Lung NeoplasmsMultiple Pulmonary NodulesDiffusion Magnetic Resonance ImagingFluorodeoxyglucose F18HumansLungPositron-Emission TomographyPositron Emission Tomography Computed TomographyRadiopharmaceuticalsSensitivity and SpecificityFluorodeoxyglucose F18RadiopharmaceuticalsDiffusion-weighted imagingLung neoplasmsMagnetic resonance imagingPositron emission tomography/computed tomographyPulmonary nodule

Identifiers

PMID36899303
PMCPMC10007793

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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.