Samarasekera, D. N.; Wright, Y.; Lowndes, R. H.; Stanley, K. P.; Preston, P.; Speakman, C. T. M.
(Springer-Verlag, 2008)
Background
Anal pressure vectography is an anorectal physiology study that evaluates the radial pressures in the anal canal from which a symmetry index that indicates the anatomical integrity of the anal sphincter can be ...