3.

局限期小细胞肺癌患者的危及器官限量(n=26)

Dose volume parameter of organ at risk for patients with LS-SCLC (n=26)

Item	Data
OAR: organs at risk; MLD: mean lung dose; V20: percentage of volume receiving≥20 Gy; V10: percentage of volume receiving≥10 Gy; V5: percentage of volume receiving≥5 Gy; Dmax: maximum dose; Dmean: mean dose; V40: percentage of volume receiving≥40 Gy; V45: percentage of volume receiving≥45 Gy.
GTV volume
Median	68.5
Range	9.7-369.7
PTV volume
Median	379.1
Range	124.1-1190.9
Total Lungs (Mean±SD)
V20 (%)	24.2±0.9
V10 (%)	39.7±1.4
V5 (%)	55.5±1.8
MLD (cGy)	1364.4±42.4
Esophagus (Mean±SD)
Dmean (cGy)	2757.4±159.0
Dmax (cGy)	5592.1±137.6
Heart (Mean±SD)
V40 (%)	14.2±2.5
V45 (%)	7.3±2.1
Dmax (cGy)	1543.9±147.8