Expanding criteria for slow colonic transit in patients being evaluated for chronic constipation by scintigraphy

Background Colonic transit measurement [geometric center (GC) at 24 and 48 hours] identifies slow transit constipation (STC) in patients with chronic constipation. Aim To evaluate the utility of the difference between GC24 and GC48 (Δ 48‐24 ) to identify STC in adults with chronic constipation. Methods We reviewed medical records of 250 patients, aged 18‐75 years, who underwent colonic transit by scintigraphy during 1994‐2019 for investigation...