Figure 4 - Esophageal manometric findings in vigorous achalasia.
From the following article
Pathophysiology of achalasia and diffuse esophageal spasm
Ikuo Hirano
GI Motility online (2006)
doi:10.1038/gimo22
The recording is from a patient with vigorous achalasia demonstrating robust, simultaneous esophageal body contractions and failed relaxation of a hypertensive lower esophageal sphincter.
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