OBJECTIVE: The objective of our study was to determine the radiation dose to the female breast from current 16-MDCT body examinations. MATERIALS AND METHODS: Metal oxide semiconductor field effect transistor (MOSFET) detectors were placed in four quadrants of the breast of a female-configured anthropomorphic phantom to determine radiation dose to the breast. Imaging was performed on a 16-MDCT scanner (LightSpeed, GE Healthcare) using current clinical protocols designed to assess pulmonary embolus (PE) (140 kVp, 380 mA, 0.8-sec rotation, 16 x 1.25 mm collimation), appendicitis (140 kVp, 340 mA, 0.5-sec rotation, 16 x 0.625 mm collimation), and renal calculus (140 kVp, 160 mA, 0.5-sec rotation, 16 x 0.625 mm collimation). RESULTS: Radiation dose to the breast ranged from 4 to 6 cGy for the PE protocol and up to 1-2 cGy in the inferior aspect of the right breast and lateral aspect of the left breast for the appendicitis protocol. The renal calculus protocol yielded less than 150 microGy absorbed breast dose. CONCLUSION: Current clinical chest and abdomen protocols result in vairable radiation doses to the breast. The magnitude of exposure may have implications for imaging strategies.
OBJECTIVE: The objective of our study was to determine the radiation dose to the female breast from current 16-MDCT body examinations. MATERIALS AND METHODS:Metal oxide semiconductor field effect transistor (MOSFET) detectors were placed in four quadrants of the breast of a female-configured anthropomorphic phantom to determine radiation dose to the breast. Imaging was performed on a 16-MDCT scanner (LightSpeed, GE Healthcare) using current clinical protocols designed to assess pulmonary embolus (PE) (140 kVp, 380 mA, 0.8-sec rotation, 16 x 1.25 mm collimation), appendicitis (140 kVp, 340 mA, 0.5-sec rotation, 16 x 0.625 mm collimation), and renal calculus (140 kVp, 160 mA, 0.5-sec rotation, 16 x 0.625 mm collimation). RESULTS: Radiation dose to the breast ranged from 4 to 6 cGy for the PE protocol and up to 1-2 cGy in the inferior aspect of the right breast and lateral aspect of the left breast for the appendicitis protocol. The renal calculus protocol yielded less than 150 microGy absorbed breast dose. CONCLUSION: Current clinical chest and abdomen protocols result in vairable radiation doses to the breast. The magnitude of exposure may have implications for imaging strategies.
Authors: Di Zhang; Ali S Savandi; John J Demarco; Chris H Cagnon; Erin Angel; Adam C Turner; Dianna D Cody; Donna M Stevens; Andrew N Primak; Cynthia H McCollough; Michael F McNitt-Gray Journal: Med Phys Date: 2009-03 Impact factor: 4.071
Authors: Sigal Trattner; Peter Prinsen; Jens Wiegert; Elazar-Lars Gerland; Efrat Shefer; Tom Morton; Carla M Thompson; Yoad Yagil; Bin Cheng; Sachin Jambawalikar; Rani Al-Senan; Maxwell Amurao; Sandra S Halliburton; Andrew J Einstein Journal: Med Phys Date: 2017-10-26 Impact factor: 4.071
Authors: Erin Angel; Nazanin Yaghmai; Cecilia Matilda Jude; John J DeMarco; Christopher H Cagnon; Jonathan G Goldin; Cynthia H McCollough; Andrew N Primak; Dianna D Cody; Donna M Stevens; Michael F McNitt-Gray Journal: AJR Am J Roentgenol Date: 2009-11 Impact factor: 3.959
Authors: Erin Angel; Nazanin Yaghmai; Cecilia Matilda Jude; John J Demarco; Christopher H Cagnon; Jonathan G Goldin; Andrew N Primak; Donna M Stevens; Dianna D Cody; Cynthia H McCollough; Michael F McNitt-Gray Journal: Phys Med Biol Date: 2009-01-06 Impact factor: 3.609