Radiation Dose to the Eyes and Parotids during CT of the Sinuses

Abstract

These results demonstrate minimal risk from radiation through the use of high-resolution computed tomography and support the use of such a protocol for diagnosis and preoperative planning.

Clinical Utility of Intraoperative Volume Computed Tomography Scanner for Endoscopic Sinonasal and Skull Base Procedures

“…Previous studies on radiation exposure from thin-slice axial CT (0.75-to 1-mm collimation) with multiplanar reconstruction have shown doses of 24.5-29.5 mGy to the lens. 15,16 The amount of radiation exposure with intraoperative CT technologies is considerably less; recent studies report radiation doses of 1 and 4.1 mGy for CBCT and fluoroscopic CT, respectively. 9,17 Radiation exposure from the volume CT used in this series has been reported in millisieverts (mSv), or so-called effective dose, which may represent a more accurate exposure estimate.…”

The use of Portable Intraoperative Computed Tomography Scanning for Real-Time Image Guidance: A Pilot Cadaver Study

“…These levels are low and deliver much lower doses of radiation than conventional CT scanners 11,12 (Table 1.) Doses between 600 and 1400 rads accumulated over years are required to develop cataracts.…”