Real practice radiation dose and dosimetric impact of radiological staff training in body CT examinations

被引：18

作者：

Paolicchi F. ^{[1
]}

Faggioni L. ^{[1
]}

Bastiani L. ^{[2
]}

Molinaro S. ^{[2
]}

Caramella D. ^{[1
]}

Bartolozzi C. ^{[1
]}

机构：

[1] Department of Diagnostic and Interventional Radiology, University of Pisa, 56100 Pisa

[2] Institute of Clinical Physiology, National Research Council, 56124 Pisa

来源：

Insights into Imaging | 2013年 / 4卷 / 2期

关键词：

Multidetector computed tomography; Radiation dose; Radiation protection; Staff training;

D O I：

10.1007/s13244-013-0241-0

中图分类号：

学科分类号：

摘要：

Objectives: To evaluate the radiation dose of the main body CT examinations performed routinely in four regional diagnostic centres, the specific contribution of radiologists and technologists in determining CT dose levels, and the role of radiological staff training in reducing radiation doses. Methods: We retrospectively evaluated the radiation dose in terms of dose-length product (DLP) values of 2,016 adult CT examinations (chest, abdomen-pelvis, and whole body) collected in four different centres in our region. DLP values for contrast-unenhanced and contrast-enhanced CT examinations performed at each centre were compared for each anatomical area. DLP values for CT examinations performed before and after radiological staff training were also compared. Results: DLP values for the same CT examinations varied among centres depending on radiologists' preferences, variable training of technologists, and diversified CT image acquisition protocols. A specific training programme designed for the radiological staff led to a significant overall reduction of DLP values, along with a significant reduction of DLP variability. Conclusions: Training of both radiologists and technologists plays a key role in optimising CT acquisition procedures and lowering the radiation dose delivered to patients. Main messages: • The effective dose for similar CT examinations varies significantly among radiological centres.• Staff training can significantly reduce and harmonise the radiation dose.• Training of radiologists and technologists is key to optimise CT acquisition protocols. © 2013 The Author(s).

引用

页码：239 / 244

页数：5

共 27 条

[1]

Brenner D.J., Hall E.J., CT-an increasing source of radiation exposure, N Engl Med, 22, pp. 2277-2284, (2007)

[2]

Furlow B., Radiation dose in computed tomography, Radiol Technol, 81, pp. 437-450, (2010)

[3]

Lauer M.S., Elements of danger-the case of medical imaging, N Engl J Med, 361, pp. 841-843, (2009)

[4]

Smith-Bindman R., Is computed tomography safe?, N Engl J Med, 363, pp. 1-4, (2010)

[5]

Pearce D.A., Preston D.L., Radiation-induced cancer risks at low doses among atomic bomb survivors, Radiat Res, 154, pp. 178-186, (2000)

[6]

Little M.P., Cancer and non-cancer effects in Japanese atomic bomb survivors, J Radiol Prot, 29, pp. 43-59, (2009)

[7]

Health Risks from Exposure to Low Levels of Ionizing Radiation: BEIR VII Phase 2, (2006)

[8]

Mettler F.A., Huda W., Yoshizumi T.T., Mahesh M., Effective doses in radiology and diagnostic nuclear medicine: a catalog, Radiology, 248, pp. 254-263, (2008)

[9]

Smith-Bindman R., Lipson J., Marcus R., Et al., Radiation dose associated with common computed tomography examinations and the associated lifetime attributable risk of cancer, Arch Intern Med, 169, pp. 2078-2086, (2009)

[10]

Griffey R.T., Sodickson A., Cumulative radiation exposure and cancer risks estimates in emergency department patients undergoing repeat or multiple CT, AJR Am J Roentgenol, 192, pp. 887-892, (2009)

← 1 2 3 →