Skip to the content

Does an increase in compression force really improve visual image quality in mammography? An initial investigation

Mercer, CE, Hogg, P, Cassidy, S and Denton, E 2013, 'Does an increase in compression force really improve visual image quality in mammography? An initial investigation' , Radiography, 19 (4) , pp. 363-365.

[img] PDF
Restricted to Repository staff only

Download (214kB) | Request a copy


Objective: Literature speculates that visual image quality (IQ) and compression force levels may be directly related. This small study investigates whether a relationship exists between compression force levels and visual IQ. Method: To investigate how visual IQ varies with different levels of compression force, 39 clients were selected over a 6 year screening period that had received markedly different amounts of compression force on each of their three sequential screens. Images for the 3 screening episodes for all women were scored visually using 3 different IQ scales. Results: Correlation coefficients between the 3 IQ scales were positive and high (0.82, 0.9 and 0.85). For the scales, the IQ scores their correlation does not vary significantly, even though different compression levels had been applied. Kappa IQ scale 1: 0.92, 0.89, 0.89. ANOVA IQ scale 2: p ¼ 0.98, p ¼ 0.55, p ¼ 0.56. ICC IQ scale 3: 0.97, 0.93, 0.91. Conclusion: For the 39 clients there is no difference in visual IQ when different amounts of compression are applied.We believe that further work should be conducted into compression force and image quality as ‘higher levels’ of compression force may not be justified in the attainment of suitable visual image quality.

Item Type: Article
Themes: Health and Wellbeing
Schools: Schools > School of Health Sciences > Centre for Health Sciences Research
Journal or Publication Title: Radiography
Publisher: Elsevier
Refereed: Yes
ISSN: 1078-8174
Related URLs:
Funders: Non funded research
Depositing User: P Hogg
Date Deposited: 08 Oct 2013 06:45
Last Modified: 10 Nov 2015 13:50

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)


Downloads per month over past year