Table 1.

Clinicopathologic characteristics of the study population.

Characteristic	Number of Patients (Percentage)
Age, years
Median (range)	63 (47–76)
Gender
Male	7/13 (54%)
Female	6/13 (46%)
Initial resectability status
Borderline resectable	13/13 (100%)
Unresectable	0/13 (0%)
Pathologic T stage
pT0	1/13 (8%)
pT1	1/13 (8%)
pT2	1/13 (8%)
pT3	10/13 (76%)
Pathologic N stage
pN0	6/13 (46%)
pN1	7/13 (54%)
Largest pre-treatment dimension of tumor, cm
Median (range)	3 (2–6.2)
SBRT dose per fraction
5 Gy	1/13 (8%)
6 Gy	1/13 (8%)
7 Gy	5/13 (38%)
8 Gy	6/13 (46%)
Duodenal histologic damage score
1 (no/minimal damage)	4/13 (31%)
2 (moderate damage)	8/13 (62%)
3 (marked damage)	1/13 (8%)

SBRT, stereotactic body radiation therapy; Gy, Gray.