scholarly journals Diagnostic Performance of PET or PET/CT Using 18F-FDG Labeled White Blood Cells in Infectious Diseases: A Systematic Review and a Bivariate Meta-Analysis

Diagnostics ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 60 ◽  
Author(s):  
Marie Meyer ◽  
Nathalie Testart ◽  
Mario Jreige ◽  
Christel Kamani ◽  
Mohammed Moshebah ◽  
...  

Background: Diagnostic performance of positron emission tomography using white blood cells labeled with fluorine-18-fluorodeoxyglucose (18F-FDG-WBC PET or PET/CT) in patients with suspicious infectious diseases has been evaluated in several studies; however, there is no consensus about the diagnostic accuracy of this method. Therefore, a systematic review and meta-analysis was carried out on this topic. Methods: A comprehensive computer literature search screening PubMed/MEDLINE, Embase and Cochrane library databases through March 2019 was performed. Pooled sensitivity, specificity, positive and negative likelihood ratios (LR+ and LR−), and diagnostic odds ratio (DOR) of 18F-FDG-WBC PET or PET/CT in patients with infectious diseases were calculated. Results: Eight studies on the use of 18F-FDG-WBC PET or PET/CT in suspicious infectious diseases were discussed in the systematic review. The meta-analysis of seven studies (236 patients) provided these pooled results on a per patient-based analysis: sensitivity was 86.3% [95% confidence interval (95%CI) 75–92.9%], specificity 92% (95%CI 79.8–97.1%), LR+ 6.6 (95%CI: 3.1–14.1), LR− 0.2 (95%CI: 0.12–0.33), DOR 43.5 (95%CI: 12.2–155). A statistically significant heterogeneity was not detected. Conclusions: Despite limited literature data, 18F-FDG-WBC PET or PET/CT demonstrated a good diagnostic accuracy for the diagnosis of infectious diseases; nevertheless, larger studies are needed.

Diagnostics ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 101
Author(s):  
Veronika Ballova ◽  
Barbara Muoio ◽  
Domenico Albano ◽  
Francesco Bertagna ◽  
Luca Canziani ◽  
...  

Background: Some studies evaluated the diagnostic performance of fluorine-18-fluorodeoxyglucose (18F-FDG) positron emission tomography or positron emission tomography/computed tomography (PET or PET/CT) for the detection of post-transplant lymphoproliferative disorder (PTLD). As there is no clear consensus about the diagnostic accuracy of these imaging methods, we performed a meta-analysis on this topic. Methods: A comprehensive computer literature search of PubMed, Embase, and Cochrane library databases through December 2019 was performed. Pooled sensitivity, specificity, positive and negative likelihood ratios (LR+ and LR−), and diagnostic odds ratio (DOR) of 18F-FDG PET or PET/CT for detection of PTLD were calculated. Results: Five studies reporting data on the diagnostic performance of 18F-FDG PET or PET/CT in 336 transplant recipients were included in the systematic review and bivariate meta-analysis. Pooled sensitivity and specificity for detection of PTLD were 89.7% (95% confidence interval (95%CI): 84.6–93.2%) and 90.9% (95%CI: 85.9–94.3%), respectively. Pooled LR+, LR−, and DOR were 8.9 (95%CI: 5.7–14), 0.13 (95%CI: 0.08–0.2), and 70.4 (95%CI: 35.4–140), respectively. A significant heterogeneity among studies was not detected. Conclusions: Despite limited literature data, 18F-FDG PET or PET/CT demonstrated good diagnostic performance for the detection of PTLD, but large prospective studies are needed to strengthen these findings.


2019 ◽  
Vol 47 (5) ◽  
pp. 1287-1301 ◽  
Author(s):  
Giorgio Treglia ◽  
Mariarosa Pascale ◽  
Elena Lazzeri ◽  
Wouter van der Bruggen ◽  
Roberto C. Delgado Bolton ◽  
...  

2014 ◽  
Vol 42 (1) ◽  
pp. 152-163 ◽  
Author(s):  
Anna Margherita Maffione ◽  
Egesta Lopci ◽  
Christina Bluemel ◽  
Francesco Giammarile ◽  
Ken Herrmann ◽  
...  

Diagnostics ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 754
Author(s):  
Christel H. Kamani ◽  
Gilles Allenbach ◽  
Mario Jreige ◽  
Anna G. Pavon ◽  
Marie Meyer ◽  
...  

Background: Infectious endocarditis is a life-threatening disease, requiring prompt and accurate diagnosis. The aim of this article is to perform a systematic review and meta-analysis of the literature to estimate the performance of fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) for the diagnosis of native valve endocarditis (NVE). Methods: Selected articles evaluating the diagnostic accuracy of 18F-FDG PET/CT in patients with suspected NVE, resulting from a comprehensive literature search through the PubMed/MEDLINE and Cochrane library databases until April 2020, were included for the systematic review and meta-analysis. Results: Seven studies (351 episodes of suspected NVE) were included. 18F-FDG PET/CT yielded a pooled sensitivity of 36.3% and a pooled specificity of 99.1% for the diagnosis of NVE. The pooled positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were 8.3, 0.6, and 15.3, respectively. The sensitivity increased using contemporary PET/CT device with state-of-the-art patient preparation as well as innovative image acquisitions or adding the results of 18F-FDG PET/CT in a multimodality strategy. Conclusions: In our systematic review and meta-analysis, 18F-FDG PET/CT yielded a poor pooled sensitivity with an otherwise excellent pooled specificity for the diagnosis of NVE; however, several factors may increase the sensitivity without affecting the specificity and these factors should be better evaluated in future studies.


Diagnostics ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 790
Author(s):  
Ta-Wei Yang ◽  
Yi-Chung Yu ◽  
Yen-Yue Lin ◽  
Shih-Chang Hsu ◽  
Karen Chia-Wen Chu ◽  
...  

Foreign body (FB) ingestion is a common clinical problem in acute settings. Detecting FBs in the upper digestive tract is challenging. The conventional X-ray is usually the first-line imaging tool to detect FBs. However, its diagnostic performance is inconsistent in the literature. In this study, we performed a systematic review and meta-analysis to determine the diagnostic performance of the conventional X-ray for detecting FBs in the upper digestive tract. We conducted a systematic search of PubMed, Embase, Cochrane Library, Web of Science, and Scopus until 1 August 2020. Prospective or retrospective studies investigating the diagnostic accuracy of conventional X-rays for detecting FBs in the upper digestive tract in patients of all ages were included. The Quality Assessment of Studies of Diagnostic Accuracy-2 tool was used to review the quality of included studies. We used a bivariate random-effects model to calculate diagnostic accuracy parameters. Heterogeneity was assessed using I2 statistics. We included 17 studies (n = 4809) in the meta-analysis. Of the 17 studies, most studies were rated as having a high risk of bias. Conventional X-rays had a pooled sensitivity of 0.58 (95% confidence interval [CI] = 0.36–0.77, I2 = 98.52) and a pooled specificity of 0.94 (95% CI = 0.87–0.98, I2 = 94.49) for detecting FBs in the upper digestive tract. The heterogeneity was considerable. The area under the summary receiver operating characteristic curve was 0.91 (95% CI = 0.88–0.93). Deek’s funnel plot asymmetry test results revealed no significant publication bias (p = 0.41). The overall sensitivity and specificity of conventional X-rays were low and high, respectively, for detecting FBs in the upper digestive tract. Hence, conventional X-rays to exclude patients without upper FBs in the digestive tract are not recommended. Further imaging or endoscopic examinations should be performed for at-risk patients.


2020 ◽  
Author(s):  
Jacqueline Jeffries ◽  
Bernadette Coles ◽  
Kevin Bradley ◽  
Alex Holborow ◽  
Elizabeth Smyth ◽  
...  

Abstract Background Oesophageal cancer is increasing in incidence and has a poor prognosis. Patients with potentially curable disease have a staging positron emission tomography (PET) examination combined with a computed tomography (CT) to assess loco-regional and distant disease. Although a small proportion of patients are suitable for attempted surgical resection, the majority will receive neo-adjuvant therapy (chemotherapy with or without radiotherapy) before their operation. The current regimen prescribes all patients to complete the neo-adjuvant treatment prior to surgery, but some patients will not experience a beneficial response. A repeat PET/CT after one cycle of neo-adjuvant treatment may identify early response or non-response and could alter subsequent management. The purpose of this systematic review and meta-analysis is to estimate the early and completion response rate defined by fluorodeoxyglucose (FDG)-PET, its diagnostic accuracy and explore associated factors. Methods Primary studies reporting response rates and diagnostic accuracy of PET/CT will be identified from MEDLINE, Embase, Cochrane Library, Cumulative Index of Nursing and Allied Health Literature (CINAHL), Scopus, Web of Science, International Clinical Trials Registry Platform (ICTRP) Search Portal and ClinicalTrials.gov databases. Peer-reviewed studies published from 2005 onwards will be included. Data will be extracted from selected studies and a meta-analysis using a random effects model will be attempted. Pooled early and completion response rates, and diagnostic accuracy (sensitivity and specificity), will be calculated from available data. Heterogeneity between studies, risk of bias and methodological quality will be assessed. Discussion This systematic review and meta-analysis will identify and synthesise evidence to determine early and completion response rates to neo-adjuvant treatment and the corresponding diagnostic accuracy of PET/CT. This strategy has the potential to identify patients that will not respond to the treatment and to offer this group an alternative pre-operative treatment or proceed directly to operation, thereby avoiding a delay in surgical resection and optimising patient outcomes.


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