title: Technical note: A new TLD-phantom measurement system for determining dose distribution levels in the right and left breast from spiral CT chest imaging.
abstract: Two specially designed plastic/aluminum phantoms positioned thermoluminescent dosimeters (TLDs) at the right and left breast location of an anthrophomorophic chest torso. Imaging was performed on a spiral CT for a Volume of the chest phantom through the breast area for a noncontiguous (pitch 1.5) helical chest scan. Conventional pencil beam ionization chamber measurements were made at the same operating parameters. The doses ranged from approximately 1 to 3 cGy. For both breast phantoms, the doses were highest for the medial inner quadrants near the mediastinum. The doses were lowest for the outer quadrants (lateral aspects) of both breasts.
authors.affiliation: Department of Radiology, Martin Luther King/Drew Medical Center, 12021 South Wilmington Boulevard, Los Angeles, California 90059, USA. jehall@dhs.co.la.ca.us
authors.forename: Jeffery L
authors.initials: JL
authors.lastname: Hall
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Navarrete
authors.forename: Edgar
authors.initials: E
authors.lastname: Surprenant
authors.forename: Jack
authors.initials: J
authors.lastname: Sklansky
authors.forename: Jack I
authors.initials: JI
authors.lastname: Eisenman
mesh_terms: D001940:Breast / Q000528:radiation effects*; D005260:Female; D006801:Humans; D016011:Normal Distribution; D019047:Phantoms, Imaging; D011879:Radiotherapy Dosage; D013819:Thermoluminescent Dosimetry / Q000379:methods; D036542:Tomography, Spiral Computed / Q000295:instrumentation* / Q000379:methods*