Egyptian Journal of Radiology and Nuclear Medicine

Table 3 Ultrasound findings among study groups

From: Importance of the hounsfield unit value measured by computed tomography in the differentiation of hydronephrosis and pyonephrosis

		Group				P value
		Pyonephrosis (13 renal unit)		Hydronephrosis (38 renal unit)
		Count	%	Count	%
1.Degree of dilatation of PCs	Mild	0	0.0	0	0.0	0.047
	Moderate	9	69.2	14	36.9
	Severe	4	30.8	24	63.1
2. Hyperechoic debris	Yes	6	46.2	6	15.8	0.029
2. Hyperechoic debris	No	7	53.8	32	84.2	0.029
3.Fluid–fluid levels	Yes	8	61.5	0	0.0	0.0001
3.Fluid–fluid levels	No	5	38.5	38	100.0	0.0001

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