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Table 1 Main characteristics of the studies included in the meta-analysis

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

Study design

N

Age

Cancer type

Data type

Reference standard

Follow-up time

PET/MRI

PET/CT

Ohno Y [2]

2015

Prosp

140

47–83

Lung cancer

Patient-based

Pathology and imaging follow-up

 ≥ 6 months

3.0 T -shiba Sequential

CE: yes

Dose: 3.3 MBq/Kg

Uptake time: 60 min

Heusch P [2]

2015

Retro

73

21–85

Various cancers

Patient-based

Pathology and imaging follow-up

273 days (median)

3.0 T Siemens

Simultaneous

CE: yes

Dose: 295 MBq(mean)

Uptake time: 141 min(mean)

Lee SM [4]

2016

Prosp

45

35–79

Lung cancer

Patient-based

Pathology and imaging follow-up

393 days (median)

3.0 T Siemens

Simultaneous

CE: yes

Dose: 5.2 MBq/Kg

Uptake time: 60 min

Melsaether AN [5]

2016

Prosp

51

32–76

Breast cancer

Patient & lesion-based

Pathology and imaging follow-up

 ≥ 6 months

3.0 T Siemens

Simultaneous

CE: yes

Dose: 547.6 MBq (mean)

Uptake time:131 min

Huellner MW [6]

2016

Prosp

42

35–89

Lung cancer

Patient-based

Pathology and imaging follow-up

568 days (mean)

3.0 T GE

Sequential

CE: none

Dose: 350 MBq

Uptake time: 60 min

Sekine T [7]

2017

Prosp

43

20–86

Occult tumors

Patient-based

Pathology and imaging follow-up

523–1848 days

3.0 T GE

Sequential

CE: 19 patients

Dose: 2 MBq/Kg

Uptake time: 69 min(mean)

Catalano OA [8]

2017

Retro

51

20–71

Breast cancer

Patient-based

Pathology and imaging follow-up

 ≥ 24 months

3.0 T Siemens

Simultaneous

CE: yes

Dose: 4.44 MBq/kg

Uptake time:60 min

Ohno Y [9]

2017

Prosp

64

56(mean)

Thymic epithelial tumor

Patient-based

Pathology and imaging follow-up

 ≥ 6 months

3.0 T Canon

Sequential

CE: yes

Dose: 132–300 MBq

Uptake time:60 min

Botsikas D [10]

2019

Prosp

80

48(mean)

Breast cancer

Patient & lesion-based

Pathology and imaging follow-up

 ≥ 12 months

3.0 T Philips

Sequential

CE: yes

Dose: 3.5 MBq/kg

Uptake time: 60 min

Ohno Y [11]

2019

Prosp

23

55–75

Malignant pleural mesothelioma

Patient-based

Pathology and imaging follow-up

6 or 12 months

3.0 T Canon

Sequential

CE: yes

Dose: 132–300 MBq

Uptake time:60 min

Liu Y [12]

2019

Prosp

30

 ≥ 18

Gastric Cancer

Patient-based

Pathology and imaging follow-up

3.2–40.7 months

3.0 T Siemens

Simultaneous

CE: none

Dose: 2.22—4.44 MBq /kg

Uptake time: 20–30 min

Yeh CH [13]

2020

Prosp

198

56(mean)

Pharynx squamous cell carcilowma

Patient & lesion-based

Pathology and imaging follow-up

 ≥ 12 months

3.0 T Siemens

Simultaneous

CE: yes

NR

Ohno Y [14]

2020

Prosp

104

43–85

Lung cancer

Patient-based

Pathology and imaging follow-up

 ≥ 24 months

3.0 T canon, 1.5 T Philips

Sequential

CE: yes

Dose: 3.3 MBq/kg

Uptake time: 60 min

Ohno Y [15]

2021

Prosp

98

47–83

Lung cancer

Patient-based

Pathology and imaging follow-up

 ≥ 6 months

3.0 T Vantage Titan and Galan

Sequential

CE: yes

NR

  1. Abbreviations: N Nunmber, Prosp Prospective, Retro Retrospective, CE Contrast enhanced, NR Not reported