Dosimetry for optimisation of patient protection in computed tomography

被引：143

作者：

Jessen, KA ^{[1
]}

Shrimpton, PC

Geleijns, J

Panzer, W

Tosi, G

机构：

[1] Aarhus Univ Hosp, Dept Phys Med, DK-8000 Aarhus C, Denmark

[2] Natl Radiol Protect Board, Didcot OX11 0RQ, Oxon, England

[3] Univ Leiden Hosp, Dept Clin Oncol, NL-2300 RC Leiden, Netherlands

[4] GSF, Inst Strahlenschutz, D-85758 Oberschleissheim, Germany

[5] Inst Europeo Oncol, Fis Sanitaria, I-20141 Milan, Italy

来源：

APPLIED RADIATION AND ISOTOPES | 1999年 / 50卷 / 01期

关键词：

D O I：

10.1016/S0969-8043(98)00024-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 [无机化学]; 081704 [应用化学];

摘要：

The complex conditions of irradiation in computed tomography (CT), involving highly-collimated X-ray beams, necessitate the use of specially-defined dose descriptors such as the computed tomography dose index (CTDI). When used in a weighted form (CTDIW), this concept can describe the absorbed dose from a single slice in standard head and body phantoms. The model can easily be extended to characterise patient exposure for a complete examination by means of the reference dose quantity dose-length product (DLP). Effective dose can also be estimated from DLP, when required. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：165 / 172

页数：8

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