New Morphological Features for Grading Pancreatic Ductal Adenocarcinomas

Algorithm 4

Max_ VD _Idx  (s , e , amp_list).

Input: Start index s, End index e, Atypia-Amplitude Signature amp_list,

Output: Max VD Index max_vd_idx

Method:

(1) max_vd_idx ← 0

(2) max_vd ← −∞

(3) if (e − s) > 1 then

(4)  for  i ←s + 1 to  e   −1  do

(5)   vd← VD (s, i, e, amp_list)

(6)   if vd > max_vd then

(7)    max_vd_idx ← 𝑖

(8)    max_vd ← vd

(9)   end if

(10)  end for

(11) end if

(12) return  max_vd_idx