2.

CTV及PTV的剂量分布比较

Dosimetric comparison of CTV and PTV

Studies	Statistical index	Data	P
CI: conformity index; IC: inhomogeneity coefficient; CN: conformation number; DIBH: deep inspiration breath hold; SB+AC: shallow breathing with abdominal compression; 3D-CRT: three-dimensional conformal photon radiotherapy; IMRT: intensity-modulated photon radiotherapy; PBT: proton beam therapy; NC: not calculable.
Jiang 2006[7]	CI IC	CI: 3D-CRT vs IMRT vs PBT=1.54 vs 1.27 vs 1.21 IC: 3D-CRT vs IMRT vs PBT=0.4 vs 0.29 vs 0.59	NC
Wang 2009[9]	CTV covered by 90% isodose line (%) CTV covered by 95% isodose line (%)	3D-CRT vs PBT=99.0±0.4 vs 99.0±1.3 3D-CRT vs PBT=43.2±33 vs 86.4±12.5	0.57 < 0.001
Georg 2008[10]	CI	DIBH: 3D-CRT vs PBT=0.78±0.02 vs 0.53±0.08 SB+AC: 3D-CRT vs PBT=0.77±0.03 vs 0.54±0.08	< 0.001 < 0.001
Roelof 2012[12]	CN	3D-CRT vs PBT=0.25±0.07 vs 0.25±0.08 IMRT vs PBT=0.38±0.1 vs 0.25±0.08	> 0.999 < 0.001