Estimation of pancreatic histology and likelihood of postoperative pancreatic fistula using extracellular volume fraction from contrast-enhanced computed tomography

Table 1 Patient characteristics, n (%)/median (25^th-75^th percentiles)

Patient background	All (n = 71)
Age (years)	72 (62-78)
Sex
Male	38 (54)
Female	33 (46)
BMI	23.1 (20.4-25.1)
Indication
PDAC	29 (41)
Vater Ca	10 (14)
IPMN	10 (14)
Bile duct Ca	7 (10)
PanNEN	6 (8)
MCN	2 (3)
Other	7 (10)
Blood test findings
Hemoglobin (g/dL)	13.3 (12.2-14.0)
Hematocrit (%)	40.1 (37.2- 43.0)
Platelet (× 104/µL)	24.0 (19.1-28.4)
Creatinine (mg/dL)	0.68 (0.57-0.81)
Albmin (g/dL)	4.2 (4.0-4.4)
Prognostic Nutritional Index	49.0 (46.0-53.1)
Image findings
MPD diameter (mm)	3 (2-4)
Thickess of pancreas (mm)	13 (11-15)
CT value on precontrast (HU)	41.0 (38.1-44.4)
CT value on equilibrium phase (HU)	102.4 (92.5-113.4)
ECVf (%)	32.0 (27.1-36.7)
Operative and postoperative findings
Blood loss (mL)	370 (200-616)
Operative time (min)	590 (471-675)
Texture
Soft	51 (72)
Hard	20 (28)
Day 3 drain amylase (U/L)	304 (93-616)
Histologic findings
Area of acini (mm2)	0.879 (0.729-1.027)
Area of islets (mm2)	0.027 (0.019-0.037)
Area of fibrosis (mm2)	0.027 (0.013-0.092)
Area of fat (mm2)	0.030 (0.007-0.073)

BMI: Body mass index; PDAC: Pancreatic ductal adenocarcinoma; Vater Ca: Carcinoma of papilla of Vater; IPMN: Intraductal papillary mucinous neoplasm; Bile duct Ca: Bile duct cancer; Pan NEN: Pancreatic neuroendocrine neoplasm; MCN: Mucinous cystic neoplasm; MPD: Main pancreatic duct; ECVf: Extracellular volume fraction.