MOSFET dosimetry for radiation dose assessment of bismuth shielding of the eye in children

被引：51

作者：

Mukundan, Srinivasan, Jr. ^{[1
]}

Wang, Page Inman ^{[1
]}

Frush, Donald P. ^{[1
]}

Yoshizumi, Terry ^{[1
]}

Marcus, Jeffrey ^{[1
]}

Kloeblen, Emily ^{[1
]}

Moore, Meredith ^{[1
]}

机构：

[1] Duke Univ, Med Ctr, Dept Radiol, Durham, NC 27705 USA

来源：

AMERICAN JOURNAL OF ROENTGENOLOGY | 2007年 / 188卷 / 06期

关键词：

bismuth shielding; CT; dosimetry; eye; head and neck imaging; pediatric imaging; radiation dose; safety;

D O I：

10.2214/AJR.06.1146

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

OBJECTIVE. The purpose of our study was to measure radiation dose to the orbit during pediatric cranial CT with and without bismuth shielding using a novel dosimetry system. Cranial CT was performed on a pediatric anthropomorphic phantom, with and without bismuth eye shields. A solid-state metal oxide semiconductor field effect transistor ( MOSFET) dosimeter was used to obtain real-time dose measurements. CONCLUSION. Bismuth shielding reduced radiation dose to the eye by up to 42%; shield artifact fell outside the diagnostic area of interest.

引用

页码：1648 / 1650

页数：3

共 9 条

[1] Is it time to retire the CTDI for CT quality assurance and dose optimization?
Brenner, DJ
[J]. MEDICAL PHYSICS, 2005, 32 (10) : 3225 - 3226
[2] Colombo Paola, 2004, Radiol Med, V108, P560
[3] Hopper KD, 2001, AM J NEURORADIOL, V22, P1194
[4] CT dose reduction and dose management tools: Overview of available options
McCollough, Cynthia H.
Bruesewitz, Michael R.
Kofler, James M., Jr.
[J]. RADIOGRAPHICS, 2006, 26 (02) : 503 - U14
[5] Dose reduction to radiosensitive tissues in CT. Do commercially available shields meet the users' needs?
McLaughlin, DJ
Mooney, RB
[J]. CLINICAL RADIOLOGY, 2004, 59 (05) : 446 - 450
[6] MERRIAM GR, 1957, AMER J ROENTGENOL RA, V77, P759
[7] Reduction of eye lens radiation dose by orbital bismuth shielding in pediatric patients undergoing CT of the head: A Monte Carlo study
Perisinakis, K
Raissaki, M
Tzedakis, A
Theocharopoulos, N
Damilakis, J
Gourtsoyiannis, N
[J]. MEDICAL PHYSICS, 2005, 32 (04) : 1024 - 1030
[8] Task Group on Accident Prevention and Safety in Radiation Therapy, 2000, Ann ICRP, V30, P7
[9] GANTRY ANGULATION IN BRAIN CT - DOSAGE IMPLICATIONS, EFFECT ON POSTERIOR-FOSSA ARTIFACTS, AND CURRENT INTERNATIONAL PRACTICE
YEOMAN, LJ
HOWARTH, L
BRITTEN, A
COTTERILL, A
ADAM, EJ
[J]. RADIOLOGY, 1992, 184 (01) : 113 - 116

← 1 →