How is the distal contractile integral (DCI) calculated in manometry for esophageal spasm?

Updated: Aug 07, 2019
  • Author: Ahmad Malas, MD; Chief Editor: BS Anand, MD  more...
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Contraction amplitude is normal.

The distal contractile integral (DCI) is the metric used to define the vigor of the contraction. It is the product of the amplitude, duration, and length of the contraction between the proximal and distal trough.

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