Table 1 Survey results, comparing SRH versus conventional tissue processing and staining.

From: Intraoperative assessment of skull base tumors using stimulated Raman scattering microscopy

 

Neuropathologist 1

Neuropathologist 2

Neuropathologist 3

Interpathologist reliability (κF)

SRH

H&E frozen

H&E FFPE

SRH

H&E frozen

H&E FFPE

SRH

H&E frozen

H&E FFPE

SRH

H&E frozen

H&E FFPE

Neoplasm Description:

Percent Agreement

88%

88%

88%

75%

88%

81%

75%

75%

75%

   

Concordance (κc)

0.78

0.80

0.80

0.52

0.78

0.66

0.61

0.56

0.59

0.48

0.78

0.63

Relative Accuracy

100%

—

—

92%

—

—

100%

—

—

   

Architectural Pattern:

Percent Agreement

75%

75%

75%

69%

88%

81%

44%

56%

50%

   

Concordance (κc)

0.64

0.65

0.65

0.58

0.83

0.74

0.34

0.48

0.43

0.28

0.38

0.41

Relative Accuracy

100%

—

—

85%

—

—

88%

—

—

   

Nuclear Shape:

Percent Agreement

94%

100%

94%

94%

94%

94%

88%

94%

94%

   

Concordance (κc)

0.87

1.00

0.86

0.86

0.86

0.86

0.73

0.86

0.86

0.64

0.91

0.82

Relative Accuracy

100%

—

—

100%

—

—

93%

—

—

   

Differential:

Percent Agreement

94%

100%

100%

94%

100%

100%

94%

100%

100%

   

Concordance (κc)

0.90

1.00

1.00

0.90

1.00

1.00

0.90

1.00

1.00

—

—

—

Relative Accuracy

94%

—

—

94%

—

—

94%

—

—

   

Final Diagnosis:

Percent Agreement

88%

94%

100%

75%

94%

81%

81%

100%

94%

   

Concordance (κc)

0.80

0.90

1.00

0.61

0.90

0.68

0.66

1.00

0.90

0.57

0.87

0.79

Relative Accuracy

88%

—

—

85%

—

—

87%

—

—

   

Confidence score

3.13

3.50

3.50

2.31

2.81

3.31

2.94

3.63

3.56

   
  1. Relative accuracy is calculated as ratio of SRH percent agreement and H&E FFPE. Confidence score is assigned as follows: 4 - highly confident, 3 - confident, 2 - somewhat confident, 1 - not at all confident.