Technical Note: A new TLD-phantom measurement system for determining dose distribution levels in the right and left breast from spiral CT chest imaging
| Autor: | Edgar Surprenant, Jeffery L. Hall, Jack Sklansky, Jorge L. Navarrete, Jack I. Eisenman |
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| Rok vydání: | 2002 |
| Předmět: |
medicine.medical_specialty
Normal Distribution CT dosimetry Imaging phantom medicine Humans Radiology Nuclear Medicine and imaging Breast Spiral ct Instrumentation Radiation Dosimeter Phantoms Imaging business.industry Mediastinum Radiotherapy Dosage computed tomography Torso equipment and supplies Radiation Measurements helical CT body regions Left breast medicine.anatomical_structure Ionization chamber Female Thermoluminescent Dosimetry Thermoluminescent dosimeter Radiology radiation dose Nuclear medicine business Tomography Spiral Computed |
| Zdroj: | Journal of Applied Clinical Medical Physics |
| ISSN: | 1526-9914 |
| DOI: | 10.1120/jacmp.v3i4.2558 |
| Popis: | 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. 2002 American College of Medical Physics. |
| Databáze: | OpenAIRE |
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