Prediction of Scar Myometrium Thickness and Previous Cesarean Scar Defect Using the Three-Dimensional Vaginal Ultrasound

Table 4

Relationship between PCSD diameter measurements and menstrual abnormalities (mm).

Menstrual condition	Measurement data of each diameter line of PCSD
	Height (mm) (up and down diameter)	Width (mm) (left and right diameter)	Depth (mm)	The thickness of the thinnest part of the remaining muscle layer (mm)
Abnormal menstruation	6.07 ± 2.45	9.13 ± 4.63	6.34 ± 2.02	3.44 ± 1.76
Normal menstruation	6.40 ± 2.32	9.18 ± 3.84	4.65 ± 1.68	3.53 ± 1.09
T value	0.316	0.033	−3.154	0.212
p	0.697	0.984	0.002	0.932