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Table 2 The differences of esophageal motility measurements between the 22-channel WPM and 36-sensor SSM during jelly pocket swallows (n = 12)

From: A comparative study of 22-channel water-perfusion system and solid-state system with 36-sensors in esophageal manometery

 

22-channel WPM

36-sensor SSM

Z

P

LES relax ratio (%)

94.5(89-95.75)

83(77-88)

-2.805

0.005

Distal esophageal body contraction intensity (mmHg)

72(46-103.5)

100(70-144.25)

-1.883

0.060

Distal esophageal body contraction duration (s)

3.2(3-4.15)

3.9(3.3-5.4)

-1.785

0.074

Proximal esophageal body contraction intensity (mmHg)

51.5(38-57.75)

69.5(42-78)

-1.611

0.107

Proximal esophageal body contraction duration (s)

3.05(2.6-3.275)

3.2(2.5-3.325)

-0.432

0.665