Evaluation der Strahlendosis bei Polytrauma-CT-Untersuchungen eines 64-Zeilen-CT im Vergleich zur 4-Zeilen-CT

Autor:	Z. Deak, Stefan Wirth, Andreas Harrieder, Markus Körner, Lucas L. Geyer, Ulrich Linsenmaier, M. F. Reiser
Rok vydání:	2012
Předmět:	business.industry Radiation dose Whole body imaging Time loss Whole body ct Effective dose (radiation) medicine.anatomical_structure Multidetector computed tomography Medicine Abdomen Radiology Nuclear Medicine and imaging Tomography business Nuclear medicine
Zdroj:	RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 184:443-449
ISSN:	1438-9010 1438-9029
DOI:	10.1055/s-0031-1299099
Popis:	PURPOSE To evaluate radiation exposure in whole-body CT (WBCT) of multiple injured patients comparing 4-row multidetector computed tomography (MDCT) to 64-row MDCT. MATERIALS AND METHODS 200 WBCT studies were retrospectively evaluated: 92 4-row MDCT scans and 108 64-row MDCT scans. Each CT protocol was optimized for the particular CT system. The scan length, CT dose index (CTDI), and dose length product (DLP) were recorded and analyzed for radiation exposure. The mean effective dose was estimated based on conversion factors. Student's t-test was used for statistical analysis. RESULTS The mean CTDIvol values (mGy) of the thorax and abdomen were significantly reduced with 64-row MDCT (10.2±2.5 vs. 11.4±1.4, p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::daa33ff962fa41caa019b450ebbb4a58 https://doi.org/10.1055/s-0031-1299099 Zobrazit plný text záznamu