Ovary-Sparing Radiation Planning Techniques Can Achieve Ovarian Dose Reduction for Soft Tissue Sarcoma of the Buttock and Thigh

Table 3

Dosimetric comparison of mean bilateral ovary dose (MBOD) and mean contralateral ovary dose (MCOD) for standard plans and ovary-sparing plans by anatomic location ().

Tumor distance from pubic symphysis		Standard plan	Ovary-sparing plan	value
Tumor < 8 cm from pubic symphysis, MBOD (cGy) (SD)	10	619; (765)	376; (540)	0.018
Tumor 8 cm from pubic symphysis, MBOD (cGy) (SD)	13	678; (1184)	566; (1022)	0.17
Tumor < 8 cm from pubic symphysis, MCOD (cGy) (SD)	10	249; (575)	72; (109)	0.128
Tumor 8 cm from pubic symphysis, MCOD (cGy) (SD)	13	211; (277)	86; (442)	0.222
Tumor subsite, MBOD (cGy)
Proximal medial thigh (SD)	13	445; (721)	293; (494)	0.008
Other thigh, MBOD (SD)	6	95; (217)	19; (309)	0.33
Buttock, MBOD (SD)	4	2161; (1170)	1800; (1116)	0.20
Tumor subsite, MCOD (cGy)
Proximal medial thigh (SD)	13	167; (255)	70; (50)	0.12
Other thigh, MBOD (SD)	6	8.8; (15.6)	7.2; (11.6)	0.36
Buttock, MBOD (SD)	4	781; (881)	210; (104)	0.26

MBOD: mean bilateral ovary dose; SD: standard deviation; cGy: centigray.