N. Heyder

Localization of Pancreatic Endocrine Tumors by Endoscopic Ultrasonography

Thomas Rösch, Charles J. Lightdale, José Botet et al. · New England Journal of Medicine · 1992 · 709 citations · Full text

Ultrasound findings in Crohn's disease and ulcerative colitis: A prospective study

H. Worlicek, H. Lutz, N. Heyder et al. · Journal of Clinical Ultrasound · 1987 · 105 citations

Medical Ultrasound, Gastroenterology, Diagnosis +16

Color Doppler ultrasound of liver lesions: Signal enhancement after intravenous injection of the ultrasound contrast agent Levovist®

Hans Ernst, E. G. Hahn, Thomas Balzer et al. · Journal of Clinical Ultrasound · 1996 · 91 citations

Medical Ultrasound, Engineering, Imaging Agent +19

Endoscopic Ultrasonography - Technique, Orientation and Diagnostic Possibilities

Lux G, N. Heyder, H. Lutz et al. · Endoscopy · 1982 · 64 citations

Echo Pattern, Medical Ultrasound, Diagnosis +19

Tissue reactions under piezoelectric shockwave application for the fragmentation of biliary calculi.

C. Ell, W. Kerzel, N. Heyder et al. · Gut · 1989 · 38 citations · Full text

Engineering, Gastroenterology, Surgery +18