There are multiple definitions:

1. manual adjustment of [detected] borders(English)

   • ABD
   • Cardiology, Ultrasound, Medical imaging

2. mesenteric arterial bed(English)

   • the perfused ex vivo preparation secretes a multiplicity of Ang I- and Ang II-processing CPs potentially relevant to the metabolism of vasoactive and other peptides in the mesentery
   • CP, CPA, RAS
   • Microcirculation
   • https://doi.org…des.2011.12.001