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Table 1 Mean ± SD SpO2 values at different plateaus with the 3 oximeters for the 12 subjects. Mean differences between the 3 oximeters are shown as delta

From: Performance of the new SmartCardia wireless, wearable oximeter: a comparison with arterial SaO2 in healthy volunteers

Oxymeter

H

SaO2 in %

SC

SpO2 in %

Ma

SpO2 in %

Ne

SpO2 in %

Delta H/SC

Delta H/Ma

Delta H/Ne

Baseline

97,83 ± 0,43

97,85 ± 0,85

98 ± 2,92

97,9 ± 1,2

0,02

0,17

0,07

Plateau 1

94,81 ± 1,33

94,58 ± 1,39

96,75 ± 2,38

94,83 ± 1,45

−0,23

1,94

0,02

Plateau 2

91,25 ± 2,48

90,78 ± 3,45

93,75 ± 3,11

91,54 ± 3,02

−0,47

3,5

0,29

Plateau 3

87,14 ± 3,04

87,09 ± 3,32

89,29 ± 3,99

87,25 ± 3,84

−0,05

2,15

0,11

Plateau 4

82,96 ± 3,25

83,16 ± 3,43

86,04 ± 4,62

84 ± 4,75

0,20

3,08

1,04

Plateau 5

76,90 ± 3,5

77,49 ± 3,67

79,5 ± 5,95

78,5 ± 4,93

0,59

2,6

1,6

Plateau 6

72,22 ± 3,42

73,03 ± 3,56

74,64 ± 5,86

72,79 ± 4

0,81

2,42

0,63

Break

99,28 ± 0,31

98,75 ± 0,59

98,791,28

98,75 ± 1,23

−0,53

−0,49

−0,53

Plateau 7

92,73 ± 2,81

92,49 ± 2,53

95,08 ± 2,84

93,15 ± 2,29

−0,24

2,35

0,42

Plateau 8

87,65 ± 2,28

87,81 ± 2,36

90,5 ± 3,32

88,42 ± 2,02

0,16

2,85

-0,23

Plateau 9

82,43 ± 2,77

82,82 ± 3,2

85,29 ± 5,09

84,05 ± 2,44

0,39

2,86

1,62

Plateau 10

76,26 ± 2,36

76,72 ± 2,21

78,71 ± 6,1

77,95 ± 2,33

0,46

2,45

1,69

Plateau 11

71,71 ± 2,59

73,06 ± 2,16

73,29 ± 7,92

73,45 ± 3,86

1,35

1,58

1,84

Mean

    

0,42 ± 0,24

2,12 ± 1,01

0,78 ± 0,58

  1. H hemoximeter, Ma the Masimo system, Ne the Nellcor system, SC the SmartCardia system. Delta is the mean difference between SaO2 and the tested system