caa a22 4500 445332689 CHVBK 20180317142742.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1245/s10434-010-1279-6 doi (NATIONALLICENCE)springer-10.1245/s10434-010-1279-6 Cumulative Imaging Radiation Exposure Following Breast-Conservation Therapy [Elektronische Daten] [Jennifer Marti, Lawrence Dauer, Michelle Stempel, Sujata Patil, Jennifer Kaplan, Leslie Montgomery] Introduction: Radiation from medical imaging may induce cellular damage and increase the risk of cancer. While health care workers are restricted to an annual dose of 50 milliSieverts (mSv), the exposure to patients is not typically recorded. After breast-conservation therapy (BCT), patients are subjected to screening mammography, diagnostic breast imaging, and systemic surveillance imaging (SSI). Our objectives are to determine the cumulative radiation exposure of breast cancer survivors after completion of BCT, and to compare exposure levels in two historical cohorts. We also evaluated the indications of SSI. Methods: We performed a retrospective study of 68 patients with stage I or II breast cancer who received BCT in 1997 or 2002. Cumulative radiation exposure during follow-up from all imaging attributable to the breast cancer diagnosis was recorded, including both breast and nonbreast imaging. The indications for SSI were recorded. Results: In the first 5years after BCT, patients received a median annual dose of 0.92mSv with no difference between the 1997 and 2002 cohorts. A median of 90% of radiation exposure was due to mammography. From 1997 to 2002, the percentage of patients receiving computed tomography (CT) scans increased. Additional SSI occurred in 65% of patients, with the majority of tests ordered in the asymptomatic patient. Patients with nodal positivity were more likely to receive SSI (p=0.03). Conclusions: In the first 5years after BCT, annual radiation exposure due to imaging was low. However, it seems prudent to consider the risks of radiation exposure when ordering potentially low-yield screening studies in asymptomatic patients. Society of Surgical Oncology, 2010 Marti Jennifer Breast Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut Dauer Lawrence Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut Stempel Michelle Breast Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut Patil Sujata Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut Kaplan Jennifer Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut Montgomery Leslie Breast Service, Department of Surgery, Montefiore Medical Center, Bronx, NY, USA aut Annals of Surgical Oncology Springer-Verlag 18/1(2011-01-01), 104-108 1068-9265 18:1<104 2011 18 10434 https://doi.org/10.1245/s10434-010-1279-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1245/s10434-010-1279-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Marti Jennifer Breast Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut NATIONALLICENCE 700 1- Dauer Lawrence Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut NATIONALLICENCE 700 1- Stempel Michelle Breast Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut NATIONALLICENCE 700 1- Patil Sujata Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut NATIONALLICENCE 700 1- Kaplan Jennifer Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA aut NATIONALLICENCE 700 1- Montgomery Leslie Breast Service, Department of Surgery, Montefiore Medical Center, Bronx, NY, USA aut NATIONALLICENCE 773 0- Annals of Surgical Oncology Springer-Verlag 18/1(2011-01-01), 104-108 1068-9265 18:1<104 2011 18 10434 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer