Assessing cumulative dose distributions in combined radiotherapy for cervical cancer using deformable image registration with pre-imaging preparations

Table 2 Volumes of the original and deformed contours and dice similarity coefficients (rectum)

		Original contour (cm³)	Deformed contour (cm³)	Original contour ⋂ deformed contour (cm³)	DSC by DIR	DSC by rigid fusion
Case1	DIR1	47.8	40.9	32.4	0.73	0.72
	DIR2	-	26.9	24.6	0.74	0.66
	DIR3	-	50.2	33.3	0.68	0.62
	Mean				0.72	0.66
Case2	DIR1	46.6	54.1	42.5	0.85	0.74
	DIR2	-	55.3	42.4	0.80	0.73
	DIR3	-	48.1	40.7	0.75	0.67
	Mean					0.71
Case3	DIR1	46.7	53.7	32.5	0.72	0.60
	DIR2	-	47.0	29.6	0.71	0.70
	DIR3	-	79.3	39.5	0.62	0.57
	Mean				0.68	0.62
Case4	DIR1	95.4	59.9	56.7	0.76	0.52
	DIR2	-	77.6	68.5	0.71	0.51
	DIR3	-	75.7	69.0	0.84	0.41
	Mean				0.77	0.48
Case5	DIR1	51.0	51.7	40.1	0.76	0.73
	DIR2	-	36.9	31.4	0.74	0.50
	DIR3	-	38.4	33.4	0.80	0.62
	Mean				0.77	0.61
Total	Mean ± SD				0.76 ± 0.05	0.62 ±0.10 p <0.05

ISSN: 1748-717X