SOFTWARE DEVELOPMENT FOR ESTIMATING THE CONVERSION FACTOR (K-FACTOR) AT SUITABLE SCAN AREAS, RELATING THE DOSE LENGTH PRODUCT TO THE EFFECTIVE DOSE

被引：1

作者：

Kobayashi, Masanao ^{[1
]}

Asada, Yasuki ^{[1
]}

Matsubara, Kosuke ^{[2
]}

Suzuki, Syouichi ^{[1
]}

Koshida, Kichiro ^{[2
]}

Matsunaga, Yuta ^{[3
]}

Kawaguchi, Ai ^{[4
]}

Haba, Tomonobu ^{[5
]}

Toyama, Hiroshi ^{[6
]}

Kato, Ryouichi ^{[1
]}

机构：

[1] Fujita Hlth Univ, Grad Sch Hlth Sci, Toyoake, Aichi, Japan

[2] Kanazawa Univ, Grad Sch Med Sci, Div Med Sci, Kanazawa, Ishikawa, Japan

[3] Nagoya Kyoritsu Hosp, Dept Imaging, Nagoya, Aichi, Japan

[4] Fujita Hlth Univ Hosp, Dept Radiol, Toyoake, Aichi, Japan

[5] Fujita Hlth Univ, Dept Radiol, Sch Med, Toyoake, Aichi, Japan

[6] Toyota Mem Hosp, Dept Radiol, Toyota, Japan

来源：

RADIATION PROTECTION DOSIMETRY | 2017年 / 174卷 / 04期

基金：

日本学术振兴会;

关键词：

CT;

D O I：

10.1093/rpd/ncw256

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We developed a k-factor-creator software (kFC) that provides the k-factor for CT examination in an arbitrary scan area. It provides the k-factor from the effective dose and dose-length product by Imaging Performance Assessment of CT scanners and CT-EXPO. To assess the reliability, we compared the kFC-evaluated k-factors with those of the International Commission on Radiological Protection (ICRP) publication 102. To confirm the utility, the effective dose determined by coronary computed tomographic angiography (CCTA) was evaluated by a phantom study and k-factor studies. In the CCTA, the effective doses were 5.28 mSv in the phantom study, 2.57 mSv (51%) in the k-factor of ICRP, and 5.26 mSv (1%) in the k-factor of the kFC. Effective doses can be determined from the kFC-evaluated k-factors in suitable scan areas. Therefore, we speculate that the flexible k-factor is useful in clinical practice, because CT examinations are performed in various scan regions.

引用

页码：565 / 574

页数：10

共 21 条

[1] Abbara Suhny, 2009, J Cardiovasc Comput Tomogr, V3, P190, DOI 10.1016/j.jcct.2009.03.004
[2] [Anonymous], 2007, ICRP PUBL, V37
[3] Bongartz G, 2004, EUROPEAN COMMISSIONS
[4] Bongartz G., 2000, EUROPEAN COMMISSIONS
[5] Estimating Effective Dose for CT Using Dose-Length Product Compared With Using Organ Doses: Consequences of Adopting International Commission on Radiological Protection Publication 103 or Dual-Energy Scanning
Christner, Jodie A.
Kofler, James M.
McCollough, Cynthia H.
[J]. AMERICAN JOURNAL OF ROENTGENOLOGY, 2010, 194 (04) : 881 - 889
[6] Radiation Dose from Single-Heartbeat Coronary CT Angiography Performed with a 320-Detector Row Volume Scanner
Einstein, Andrew J.
Elliston, Carl D.
Arai, Andrew E.
Chen, Marcus Y.
Mather, Richard
Pearson, Gregory D. N.
DeLaPaz, Robert L.
Nickoloff, Edward
Dutta, Ajoy
Brenner, David J.
[J]. RADIOLOGY, 2010, 254 (03) : 698 - 706
[7] SCCT guidelines on radiation dose and dose-optimization strategies in cardiovascular CT
Halliburton, Sandra S.
Abbara, Suhny
Chen, Marcus Y.
Gentry, Ralph
Mahesh, Mahadevappa
Raff, Gilbert L.
Shaw, Leslee J.
Hausleiter, Joerg
[J]. JOURNAL OF CARDIOVASCULAR COMPUTED TOMOGRAPHY, 2011, 5 (04) : 198 - 224
[8] Converting dose-length product to effective dose at CT
Huda, Walter
Ogden, Kent M.
Khorasani, Mohammad R.
[J]. RADIOLOGY, 2008, 248 (03) : 995 - 1003
[9] *ICRP, 1991, ICRP PUBL, V21
[10] International Commission on Radiological Protection, 2009, AD REF COMP PHANT, V39

← 1 2 3 →