Alexander A Schegerer1,2, Guy Frija3, Graciano Paulo4, Werner Jaschke5, Virginia Tsapaki6, Jacques Repussard7, John Damilakis8. 1. Department of Radiation Protection and Image Processing Systems, Hirslanden AG, Hirslanden Corporate Office, Boulevard Lilienthal 2, 8152, Opfikon-Glattpark, Switzerland. alexander.schegerer@hirslanden.ch. 2. Department of Medical and Occupational Radiation Protection, Federal Office for Radiation Protection, Neuherberg, Germany. alexander.schegerer@hirslanden.ch. 3. Paris Descartes University, Paris, France. 4. ESTESC - Coimbra Health School, Medical Imaging and Radiotherapy Department, Instituto Politécnico de Coimbra, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854, Coimbra, Portugal. 5. Department of Radiology, Medical University Innsbruck, Innsbruck, Austria. 6. Konstantopoulio General Hospital, Athens, Greece. 7. , St Nom la Bretèche, France. 8. School of Medicine, University of Crete, Iraklion, Crete, Greece.
Abstract
OBJECTIVES: To assess information reflecting radiation dose and define diagnostic reference levels (DRL) on a European basis for four interventional radiology (IR) procedures considering clinical indication, anatomical region, and procedure. METHODS: A prospective European study was performed to provide data on the IR procedures percutaneous recanalization of iliac arteries, percutaneous recanalization of femoropopliteal arteries, transarterial chemoembolization of hepatocellular carcinoma, and percutaneous transhepatic biliary drainage. Hospitals were asked to complete a questionnaire giving information on procedure, equipment, and protocol. Patient size and weight, experience of the operator graded in number of procedures performed, and complexity level of each procedure were reported. Sixteen hospitals from 13 countries could be surveyed. The percentiles of the kerma-area product, fluoroscopy time, cumulative air kerma at the interventional reference point, and number of images were determined. The impact of equipment, year of installation, and complexity level of the procedure on dose were analyzed. RESULTS: DRLs based on clinical indication were defined. Dose values varied considerably within hospitals, between them, and within each subgroup of complexity level. The use of state-of-the-art equipment reduced dose significantly by 52%. Although dose also varied within each subgroup of complexity level, for transarterial chemoembolization of hepatocellular carcinoma and percutaneous transhepatic biliary drainage, dose significantly correlated with complexity. CONCLUSIONS: This was the first study reporting exposure practice and defining DRLs based on clinical indication for four IR procedures on a European basis. These DRLs can serve as a baseline for comparison with local practice, the study as a guideline for future surveys. KEY POINTS: • The use of state-of-the-art angiographic equipment reduces dose significantly. • A significant correlation between radiation dose and complexity level is found. • Dose values vary considerably, both within and between individual hospitals, and within each complexity level of interventional radiology procedure.
OBJECTIVES: To assess information reflecting radiation dose and define diagnostic reference levels (DRL) on a European basis for four interventional radiology (IR) procedures considering clinical indication, anatomical region, and procedure. METHODS: A prospective European study was performed to provide data on the IR procedures percutaneous recanalization of iliac arteries, percutaneous recanalization of femoropopliteal arteries, transarterial chemoembolization of hepatocellular carcinoma, and percutaneous transhepatic biliary drainage. Hospitals were asked to complete a questionnaire giving information on procedure, equipment, and protocol. Patient size and weight, experience of the operator graded in number of procedures performed, and complexity level of each procedure were reported. Sixteen hospitals from 13 countries could be surveyed. The percentiles of the kerma-area product, fluoroscopy time, cumulative air kerma at the interventional reference point, and number of images were determined. The impact of equipment, year of installation, and complexity level of the procedure on dose were analyzed. RESULTS: DRLs based on clinical indication were defined. Dose values varied considerably within hospitals, between them, and within each subgroup of complexity level. The use of state-of-the-art equipment reduced dose significantly by 52%. Although dose also varied within each subgroup of complexity level, for transarterial chemoembolization of hepatocellular carcinoma and percutaneous transhepatic biliary drainage, dose significantly correlated with complexity. CONCLUSIONS: This was the first study reporting exposure practice and defining DRLs based on clinical indication for four IR procedures on a European basis. These DRLs can serve as a baseline for comparison with local practice, the study as a guideline for future surveys. KEY POINTS: • The use of state-of-the-art angiographic equipment reduces dose significantly. • A significant correlation between radiation dose and complexity level is found. • Dose values vary considerably, both within and between individual hospitals, and within each complexity level of interventional radiology procedure.
Authors: Xinhua Li; Joshua Adam Hirsch; Madan M Rehani; Kai Yang; Theodore Alan Marschall; Bob Liu Journal: Br J Radiol Date: 2021-12-08 Impact factor: 3.039
Authors: Denise Bos; Sophronia Yu; Jason Luong; Philip Chu; Yifei Wang; Andrew J Einstein; Jay Starkey; Bradley N Delman; Phuong-Anh T Duong; Marco Das; Sebastian Schindera; Allen R Goode; Fiona MacLeod; Axel Wetter; Rebecca Neill; Ryan K Lee; Jodi Roehm; James A Seibert; Luisa F Cervantes; Nima Kasraie; Pavlina Pike; Anokh Pahwa; Cécile R L P N Jeukens; Rebecca Smith-Bindman Journal: Eur Radiol Date: 2021-10-13 Impact factor: 5.315