Vatech Premium PAX-i3D, Руководство пользователя

Страница: 199 / 204

16. Appendices
PCT-90LH User Manual 193
EN
G
LISH

MICHAEL L. TAYLOR, B.SC. TOMAS KRON, PH.D., AND RICK D. FRANICH,
PH.D.:
ASSESSMENT OF OUT-OF-FIELD DOSES IN RADIOTHERAPY OF BRAIN
LESIONS IN CHILDREN, Int. J. Radiation Oncology Biol. Phys., Vol. -, No. -, pp.
1–7, 2010 To characterize the out-of-field doses in pediatric radiotherapy and to
identify simple methods by which out-of-field dose might be minimized, with a
view to reducing the risk of secondary cancers Out-of-field doses to pediatric
patients can be minimized by using simple treatment

C. THEODORAKOU, K. HORNER, K. HOWARD, A. WALKER:
Pediatric organ and effective doses in dental cone beam computed tomography
Dental CBCT has been associated with higher radiation risk to the patients
compared to conventional dental X-Ray imaging. Several studies have
investigated the radiation doses involved in dental CBCT for adults but none has
looked into pediatric doses. This study estimates the organ and effective doses to
two pediatric tissue-equivalent phantoms using thermo luminescent dosimeters
for three dental CBCT units and six imaging protocols. The doses to the thyroid,
salivary glands and brain ranged from 0.068mSv to 1.131mSv, 0.708mSv to
2.009mSv and 0.031mSv to 1.584mSv respectively. The skin and red bone
marrow have received much lower doses than the other three organs. The
effective doses ranged from 0.022 mSv to 0.081 mSv. The effective doses
calculated in this study were much higher than these of panoramic X-Ray imaging
but lower than conventional CT

CHIYO YAMAUCHI-KAWAURA & KEISUKE FUJII & TAKAHIKO AOYAMA &
SHUJI KOYAMA & MASATO YAMAUCHI:
Radiation dose evaluation in head and neck MDCT examinations with a 6-year-
old child anthropomorphic phantom, Pediatr Radiol (2010) 40:1206–1214 DOI
10.1007/s00247-009-1495-z
Background: CT examinations of the head and neck are the most commonly
performed CT studies in children, raising concern about radiation dose and their
risks to children.
Objective: The purpose of this study was to clarify radiation dose levels for
children of 6 years of age undergoing head and neck multi-detector CT (MDCT)
examinations.