Open AccessLens Dose Reduction by Patient Posture Modification During Neck CT
Author(s) -
E Mosher,
John A. Butman,
Les Folio,
Nadia Biassou,
Choonsik Lee
Publication year - 2018
Publication title -
american journal of roentgenology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 196
eISSN - 1546-3141
pISSN - 0361-803X
DOI - 10.2214/ajr.17.18261
Subject(s) - medicine , cataracts , head and neck , nuclear medicine , lens (geology) , tilt (camera) , reduction (mathematics) , radiation dose , surgery , ophthalmology , optics , mechanical engineering , physics , geometry , mathematics , engineering
Radiation exposure of the lens during neck CT may increase a patient's risk of developing cataracts. Radiologists at the National Institutes of Health worked with technicians to modify the neck CT scanning procedure to include a reduction in the scanning range, a reduction in the tube potential (kilovoltage), and a change in neck positioning using a head tilt. We objectively quantified the organ dose changes after this procedure modification using a computer simulation.