TABLE 4.

Grading classification for ovarian veins system insufficiency proposed by Szary et al. (øLOV/øROV) left or right ovarian vein diameter (mm); (incLOV/incROV) left or right ovarian vein incompetence (+ or -); (lPUV/PUV) left or right para-uterine veins (mm); (bLIILV/bRILV) branches of left or right internal veins (mm).

	øLOV	incLOV	lPUV	bLIILV	øROV	incROV	rPUV	bRIILV
GI	<6	(-/ +)	<5	<5	<5	(-)	<5	<5
GI/II	6–6.5	(+)	<5.5	<5.5	<5	(-)	<5	<5
GII	<7	(+)	<6.5	<6	<5.5	(-)	<5.5	<5.5
GII/III	7.5–8	(+ +)	<7	<7	<6	(-/ +)	<6.5	<6
GIII	>8	(+ +)	7–8	<7.5	<7.5	(+ / + +)	<7	<6.5
GIV	>10	(+ + +)	>8	>8	>8	(+ + +)	<7.5	>7