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Table 3 Results of the quality assessment using the QUADAS-2 tool

From: Comparison of whole-body 18F-FDG PET/CT and PET/MRI for distant metastases in patients with malignant tumors: a meta-analysis

Study,year

Risk of bias

Applicability concerns

Patient selection

Index test

Reference standard

Flow and timing

Patient selection

Index test

Reference standard

Ohno Y [2], 2015

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Heusch P [3], 2015

Unclear

Low risk

High risk

Low risk

Unclear

Low risk

Low risk

Lee SM [4], 2016

Unclear

Low risk

High risk

Low risk

Unclear

Low risk

Low risk

Melsaether AN [5], 2016

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Huellner MW [6], 2016

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Sekine T [7], 2017

Unclear

Low risk

High risk

Low risk

Unclear

Low risk

Low risk

Catalano OA [8] 2017

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Ohno Y [9] 2017

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Botsikas D [10] 2019

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Ohno Y [11] 2019

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Liu Y [12] 2019

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

High risk

Yeh CH [13] 2020

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

High risk

Ohno Y [14] 2020

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk

Ohno Y [15] 2021

Low risk

Low risk

High risk

Low risk

Low risk

Low risk

Low risk