open access

Vol 15, No 5 (2010)
Technical Notes
Published online: 2010-09-01
Submitted: 2010-04-14
Get Citation

Basic tests in mammography as a tool in quality improvement

Anna Kowalik, Ewelina Konstanty
DOI: 10.1016/j.rpor.2010.08.004
·
Rep Pract Oncol Radiother 2010;15(5):145-152.

open access

Vol 15, No 5 (2010)
Technical Notes
Published online: 2010-09-01
Submitted: 2010-04-14

Abstract

Background

Mammography is a radiological diagnostic method which relies on an X-ray examination of breasts and is a process involving the use of low-dose amplitude-X-rays (usually around 0.7[[ce:hsp sp="0.25"/]]mSv). Combining the use of small doses and high quality images requires extensive quality protocols, part of them being included in regulations adopted by the Minister of Health.

Aim

The aim of this study was to check the usefulness and efficacy of selected quality tests associated with mammography.

Material/methods

The study was performed in the mammography service of the Greater Poland Cancer Centre in Poznan. Following equipment was used: densitometer, sensitometer, mammographic scales, electronic scales, thermometer, hygrometer, PMMA plates, Europhantom, screen film contact phantom, viewing boxes and magnifying glasses. The methods were based on basic mammography tests. Quality control in mammography demands: clean darkroom, marked and clean cassettes, clean viewing boxes with homogenous light.

Results

The results of the “Development Process” test show that each sensitometer has to be used with an appropriate densitometer. Phantoms with abnormal structures cannot be used to “AEC System – Solidity exposure” test. “Compression – The force of compression” test may only be carried out with suitable scales and compressible material. Analysis of rejected films shows that the main reasons for rejection were wrong collimation and underexposure.

Conclusion

Every quality control in mammography provides essential information about the functioning of a laboratory. Apart from recommended standard sterility, it should be remembered that equipment should always be adjusted and repaired.

Abstract

Background

Mammography is a radiological diagnostic method which relies on an X-ray examination of breasts and is a process involving the use of low-dose amplitude-X-rays (usually around 0.7[[ce:hsp sp="0.25"/]]mSv). Combining the use of small doses and high quality images requires extensive quality protocols, part of them being included in regulations adopted by the Minister of Health.

Aim

The aim of this study was to check the usefulness and efficacy of selected quality tests associated with mammography.

Material/methods

The study was performed in the mammography service of the Greater Poland Cancer Centre in Poznan. Following equipment was used: densitometer, sensitometer, mammographic scales, electronic scales, thermometer, hygrometer, PMMA plates, Europhantom, screen film contact phantom, viewing boxes and magnifying glasses. The methods were based on basic mammography tests. Quality control in mammography demands: clean darkroom, marked and clean cassettes, clean viewing boxes with homogenous light.

Results

The results of the “Development Process” test show that each sensitometer has to be used with an appropriate densitometer. Phantoms with abnormal structures cannot be used to “AEC System – Solidity exposure” test. “Compression – The force of compression” test may only be carried out with suitable scales and compressible material. Analysis of rejected films shows that the main reasons for rejection were wrong collimation and underexposure.

Conclusion

Every quality control in mammography provides essential information about the functioning of a laboratory. Apart from recommended standard sterility, it should be remembered that equipment should always be adjusted and repaired.

Get Citation

Keywords

Mammography; Basic tests; Quality control; Densitometer; Sensitometer

About this article
Title

Basic tests in mammography as a tool in quality improvement

Journal

Reports of Practical Oncology and Radiotherapy

Issue

Vol 15, No 5 (2010)

Pages

145-152

Published online

2010-09-01

DOI

10.1016/j.rpor.2010.08.004

Bibliographic record

Rep Pract Oncol Radiother 2010;15(5):145-152.

Keywords

Mammography
Basic tests
Quality control
Densitometer
Sensitometer

Authors

Anna Kowalik
Ewelina Konstanty

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