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Table 1 Patient demographic characteristics

From: Deep progressive learning achieves whole-body low-dose 18F-FDG PET imaging

Parameter

Retrospective study

Prospective study

p value

No. of patients

26

41

N.A.

Age (years)

63.7 ± 16.4 [24, 87]a

52.9 ± 12.2 [15, 69]a

0.003

Gender

   

 Female

8

18

0.315

 Male

18

23

 Weight (kg)

65.2 ± 12.2 [51.2, 110]a

61.9 ± 12.6 [44, 101.4]a

0.233

 Height (cm)

166.2 ± 8.6 [150, 184]a

163.4 ± 9.6 [146, 183]a

0.289

 BMI

23.5 ± 3.1 [17.3, 32.5]a

23.0 ± 3.4 [16.3, 31.7]a

0.570

 Glucose level

5.38 ± 0.88 [4.3, 7.9]a

5.34 ± 0.84 [3.8, 8.1]a

0.846

 Injected activity (MBq)

258 ± 46 [200, 407]a

81 ± 15 [51, 115]a

< 0.001

 Injected activity/weight(MBq/kg)

3.97 ± 0.28[3.61, 4.75]a

1.32 ± 0.18[1.10, 2.11]a

< 0.001

 Uptake time (min)

70 ± 14 [49, 97]a

68 ± 16 [39, 105]a

0.458

Primary cancer type

  

N.A.

 Leukemia

1b

3b

 Bladder cancer

1b

0

 Multiple myeloma

1b

0

 Lung cancer

6b

9b

 Liver cancer

0

1b

 Laryngeal carcinoma

1b

0

 Bone tumor

1b

0

 Colorectal cancer

3b

2b

 Lymphoma

5b

8b

 Ovarian cancer

1b

0

 Breast cancer

1b

2b

 Renal cancer

1b

1b

 Esophageal cancer

2b

2b

 Gastric cancer

1b

0

 Pancreatic cancer

1b

1b

 Pelvic carcinoma

0

1b

 Tongue cancer

0

2b

 Uterine cancer

0

5b

 Aplastic anemia

0

1b

 Popliteal fossa tumor

0

1b

 Tonsil tumor

0

1b

 Nasopharyngeal cancer

0

3b

  1. N.A., not applicable; BMI, body mass index
  2. aData are presented as the mean ± standard deviation [minimum, maximum]
  3. bNumber of patients