NCT02413437 2017-05-08A Trial on Contrast-enhanced Ultrasound Versus Conventional Ultrasound Guided Biopsy of Liver NeoplasmsPeking University Cancer Hospital & InstitutePhase NA Unknown2,088 enrolled
NCT02521129 2015-08-13A New Track Ablation Device for Liver Biopsy: A Feasibility StudySamsung Medical CenterPhase 1/2 Unknown20 enrolled