Types of<unk>  include: * Non-high resolution (conventional)<unk>  (non-HRM) * High resolution<unk>  (HR-ARM) * High-definition<unk>  (HD-ARM or 3D-ARM) HR-ARM and HD-ARM are newer methods that use multiple closely spaced sensors in the anus and rectum, compared to 3-6 widely spaced sensors used by non-HRM, to generate a more refined view. An additional benefit to HR-ARM and HD-ARM is the increased ease in analyzing the results as pressure readings are displayed in both color and as a line plot. Accompanying the benefits shared by both high-resolution and high-definition methods, the HD-ARM method employs additional sensors placed circumferentially around the catheter allowing for closer interpretation of individual sensor pressure readings. In comparison to non-HRM, however, both of the newer methods utilize equipment that is more expensive and has a shorter design life.
Anorectal manometry
High resolution manometry
Endoanal ultrasound
Endorectal coil magnetic resonance imaging
Sigmoidoscopy
Transrectal ultrasonography
Transrectal biopsy
Rectal examination