caa a22 4500 465819214 CHVBK 20180323112131.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF01888736 doi (NATIONALLICENCE)springer-10.1007/BF01888736 Computed tomography evaluation of radiolucent gallstones in vivo [Elektronische Daten] [Paul Janowitz, A. Zöller, W. Swobodnik, J. Wechsler, K. Schumacher, H. Ditschuneit] Computed tomography facilitates an in vivo classification of gallstones and can aid in the identification of calcifications that escape detection with conventional radiologic procedures. Of patients with radiolucent stones, 54.8% exhibited calcifications either in the form of discrete rims (41.9%) or at the center of the stone (12.9%). Densities of the noncalcified areas of partially calcified stones averaged 40.68±6.8 Hounsfield units (HU), which was not significantly higher than the average of 31.85±3.19 HU for noncalcified stones. Calcified regions showed significantly higher densities (240.0±28.6 HU,p< 0.001,x ± SEM). Of the identified stones, 16.1% showed densities greater than 50 HU. These were primarily bilirubin stones, which cannot yet be treated successfully with conservative therapeutic modalities. Springer-Verlag New York Inc., 1990 Abdomen, computed tomography nationallicence Gallstone, calcification nationallicence Janowitz Paul Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut Zöller A. Department of Radiology, University of Ulm Medical Center, Ulm, Federal Republic of Germany aut Swobodnik W. Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut Wechsler J. Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut Schumacher K. Department of Radiology, University of Ulm Medical Center, Ulm, Federal Republic of Germany aut Ditschuneit H. Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut Gastrointestinal Radiology Springer-Verlag 15/1(1990-12-01), 58-60 0364-2356 15:1<58 1990 15 261 https://doi.org/10.1007/BF01888736 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01888736 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Janowitz Paul Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut NATIONALLICENCE 700 1- Zöller A. Department of Radiology, University of Ulm Medical Center, Ulm, Federal Republic of Germany aut NATIONALLICENCE 700 1- Swobodnik W. Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut NATIONALLICENCE 700 1- Wechsler J. Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut NATIONALLICENCE 700 1- Schumacher K. Department of Radiology, University of Ulm Medical Center, Ulm, Federal Republic of Germany aut NATIONALLICENCE 700 1- Ditschuneit H. Abteilung Innere Medizin II, University of Ulm Medical Clinic, Robert-Koch-Strasse 8, D-7900, Ulm, Federal Republic of Germany aut NATIONALLICENCE 773 0- Gastrointestinal Radiology Springer-Verlag 15/1(1990-12-01), 58-60 0364-2356 15:1<58 1990 15 261 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer