caa a22 4500 60549360X CHVBK 20210128100521.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00261-015-0464-2 doi (NATIONALLICENCE)springer-10.1007/s00261-015-0464-2 Low-tube voltage 100kVp MDCT in screening of cocaine body packing: image quality and radiation dose compared to 120kVp MDCT [Elektronische Daten] [Joel Aissa, Christian Rubbert, Johannes Boos, Christoph Schleich, Christoph Thomas, Patric Kröpil, Gerald Antoch, Falk Miese] Purpose: The aim of this study was to evaluate the impact of a reduced tube potential (100kVp) for non-enhanced abdominal low-dose CT on radiation dose and image quality (IQ) in the detection of body packing. Methods: This retrospective study was approved by the local research ethics committee of our clinic. From March 2012 to July 2014, 99 subjects were referred to our institute with suspected body packing. 50 CT scans were performed using a 120kVp protocol (group A), and 49 CTs were performed using a low-dose protocol with a tube voltage of 100kVp (group B). Subjective and objective IQ were assessed. DLP and CTDIvol were analyzed. Results: All examinations were of diagnostic IQ. Objective IQ was not significantly different between the 120kVp and 100kVp protocol. Mean density of solid and liquid body packets was 210±60.2 HU at 120kVp and 250.6±29.7 HU at 100kVp. Radiation dose was significantly lower in group B as compared to group A (p<0.05). In group A, body packs were detected in 16 (32%) of the 50 patients. In group B, packets were observed in 15 (31%) of 49 patients. Laboratory analysis detected cocaine in all smuggled body packs. Conclusions: Low-tube voltage 100kVp MDCT with automated tube current modulation in screening of illegal drugs leads to a diagnostic IQ and significant dose reduction compared to 120kVp low-tube voltage protocols. Despite lower radiation dose, liquid and solid cocaine containers retain high attenuation and are easily detected. Springer Science+Business Media New York, 2015 Body packing nationallicence Cocaine nationallicence CT nationallicence Acute abdominal nationallicence Localizer nationallicence Dose reduction nationallicence Aissa Joel Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Rubbert Christian Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Boos Johannes Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Schleich Christoph Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Thomas Christoph Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Kröpil Patric Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Antoch Gerald Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Miese Falk Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2152-2158 0942-8925 40:7<2152 2015 40 261 https://doi.org/10.1007/s00261-015-0464-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-015-0464-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aissa Joel Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 700 1- Rubbert Christian Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 700 1- Boos Johannes Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 700 1- Schleich Christoph Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 700 1- Thomas Christoph Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 700 1- Kröpil Patric Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 700 1- Antoch Gerald Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 700 1- Miese Falk Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2152-2158 0942-8925 40:7<2152 2015 40 261