caa a22 4500 605493405 CHVBK 20210128100520.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00261-015-0456-2 doi (NATIONALLICENCE)springer-10.1007/s00261-015-0456-2 Percutaneous cryoablation of renal masses under CT fluoroscopy: radiation doses to the patient and interventionalist [Elektronische Daten] [Jessica Stewart, Christopher Looney, Colin Anderson-Evans, Greta Toncheva, David Sopko, Charles Kim, Terry Yoshizumi, Rendon Nelson] Purpose: Computed tomographic (CT) fluoroscopy-guided percutaneous cryoablation is an effective therapeutic method used to treat focal renal masses. The purpose of this study is to quantify the radiation dose to the patient and interventional radiologist during percutaneous cryoablation of renal masses using CT fluoroscopic guidance. Methods: Over a 1-year period, the CT fluoroscopy time during percutaneous cryoablation of renal masses was recorded in 41 patients. The level of complexity of each procedure was designated as simple, intermediate, or complex. Patient organ radiation doses were estimated using an anthropomorphic model. Dose to the interventional radiologist was estimated using ion chamber survey meters. Results: The average CT fluoroscopy time for technically simple cases was 47s, 126s for intermediate cases, and 264s for complex cases. The relative risk of hematologic stomach and liver malignancy in patients undergoing this procedure was 1.003-1.074. The lifetime attributable risk of cancer ranged from 2 to 58, with the highest risk in younger patients for developing leukemia. The estimated radiation dose to the interventionalist without lead shielding was 390mR (3.9mGy) per year of cases. Conclusions: The radiation risk to the patient during CT fluoroscopy-guided percutaneous renal mass cryoablation is, as expected, related to procedure complexity. Quantification of patient organ radiation dose was estimated using an anthropomorphic model. This information, along with the associated relative risk of malignancy, may assist in evaluating risks of the procedure, particularly in younger patients. The radiation dose to the interventionist is low regardless of procedure complexity, but highlights the importance of lead shielding. Springer Science+Business Media New York, 2015 CT fluoroscopy nationallicence Radiation dose nationallicence Cryoablation nationallicence Stewart Jessica Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Looney Christopher Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Anderson-Evans Colin Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Toncheva Greta Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Sopko David Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Kim Charles Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Yoshizumi Terry Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Nelson Rendon Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2606-2612 0942-8925 40:7<2606 2015 40 261 https://doi.org/10.1007/s00261-015-0456-2 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/s00261-015-0456-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stewart Jessica Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Looney Christopher Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Anderson-Evans Colin Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Toncheva Greta Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Sopko David Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Kim Charles Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Yoshizumi Terry Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 700 1- Nelson Rendon Department of Radiology, Duke University Hospital, DUMC, Box 3808, 27710, Durham, NC, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2606-2612 0942-8925 40:7<2606 2015 40 261