Table 1. Correlation for myometrial infiltration between histology and ultrasound.

Variable	Histology
	<50%	≥ 50%	Total
Impression of examiner (%)
<50	112	9	121
≥ 50	13	35	48
Total	125	44	169
Karlsson's criteria (%)
<50	115	30	145
≥ 50	7	14	21
Total	122	44	166
Endometrial thickness (%)
<50	99	23	122
≥ 50	23	21	44
Total	122	44	166
Tumor/uterine 3D volume ratio (%)
<50	15	2	17
≥ 50	38	19	57
Total	53	21	74
Tumor distance to serosa (%)
<50	22	3	25
≥ 50	31	18	49
Total	53	21	74
Van Holsbeke's subjective model (%)
<50	103	5	111
≥ 50	11	33	44
Total	114	41	155

3D, three-dimensional.