[Retracted] Application of CTU-Assisted Doppler Ultrasound Puncture in Nontube Percutaneous Nephrolithotomy, Its Effect on Patients’ Complications, and Its Clinical Value

Table 1

Comparison of operation time, intraoperative blood loss, postoperative blood loss and hospital stay ().

Grouping		Operation time (min)	Intraoperative blood loss (ml)	Postoperative bleeding volume (ml)	Hospital stays (d)
CT group	72
CTU group	72
		6.602	14.523	17.013	18.349
		<0.05	<0.05	<0.05	<0.05