Role of diffusion MR imaging (DWI) and three-dimensional ultrasound (3DUS) in the assessment of placental insufficiency in the gestational hypertension

Egyptian Journal of Radiology and Nuclear Medicine

Table 4 Diffusion in correlation with ultrasound in hypertensive cases

			Ultrasound			Total
			Negative cases	Positive cases
Diffusion	Negative	Count	28	0		28
		% within US findings	75.7%	0.0%		70.0%
	Positive	Count	9	3		12
		% within US findings	24.3%	100.0%		30.0%
Total		Count	37	3		40
		% within US findings	100.0%	100.0%		100.0%
Chi-square test
		Value	df	Asymp. Sig. (two-sided)	Exact Sig. (two-sided)	Exact Sig. (one-sided)
Pearson chi-square		7.568^b	1	0.006
Continuity correction^a		4.393	1	0.036
Likelihood ratio		7.815	1	0.005
Fisher’s exact test					0.022	0.022
Linear-by-linear association		7.738	1	0.007
N of valid cases		40
Symmetric measures
		Value	Asymp. Std. error^a		Approx. T^b	Approx. Sig.
Measure of agreement kappa		0.318	0.146		2.751	0.006
N of valid cases		40