scholarly journals A comparison of cancer detection rates achieved by breast cancer screening programmes by number of readers, for one and two view mammography: results from the UK National Health Service breast screening programme

1998 ◽  
Vol 5 (4) ◽  
pp. 195-201 ◽  
Author(s):  
R G Blanks ◽  
M G Wallis ◽  
S M Moss
Keyword(s):  
Breast Cancer ◽  
National Health Service ◽  
Cancer Detection ◽  
Breast Screening ◽  
Screening Programme ◽  
Detection Rates ◽  
Breast Screening Programme ◽  
Uk National Health Service ◽  
The Uk ◽  
National Health Service Breast

scholarly journals A Comparison of Two View and One View Mammography in the Detection of Small Invasive Cancers : Results from the National Health Service Breast Screening Programme

1996 ◽  
Vol 3 (4) ◽  
pp. 200-203 ◽  
Author(s):  
R G Blanks ◽  
S M Moss ◽  
M G Wallis
Keyword(s):  
National Health Service ◽  
Health Service ◽  
Cancer Detection ◽  
National Health ◽  
Breast Screening ◽  
Screening Programme ◽  
Invasive Cancer ◽  
Detection Rates ◽  
Breast Screening Programme ◽  
National Health Service Breast

Objective— To examine the effect of using two view mammography in comparison with one view mammography in the detection of small (<15 mm) invasive cancers. Setting— Screening programme data from National Health Service breast screening programme (NHSBSP). Methods— Data were collated from all screening programmes in the United Kingdom on standard “Korner” returns (KC62 forms) for the screening year 1 April 1994 to 31 March 1995. The comparison of invasive cancer detection rates by programmes using one and two view mammography with indirectly age standardised invasive cancer detection rates. Results— Programmes using two views for women attending their prevalent screen (first screen) in the NHSBSP detected 3% more non-invasive/microinvasive cancers, 7% more large invasive cancers (⩽15 mm), and 42% more small invasive cancers (<15 mm) than programmes using one view mammography. Conclusions— The success of the screening programme depends largely on the ability of individual programmes to detect small invasive cancers. The results suggest that the benefit of using two view mammography is largely in the increased detection of these cancers.

scholarly journals Use of Two View Mammography Compared with One View in the Detection of Small Invasive Cancers: Further Results from the National Health Service Breast Screening Programme

1997 ◽  
Vol 4 (2) ◽  
pp. 98-101 ◽  
Author(s):  
R G Blanks ◽  
S M Moss ◽  
M G Wallis
Keyword(s):  
National Health Service ◽  
Health Service ◽  
Cancer Detection ◽  
Breast Screening ◽  
Detection Rate ◽  
Screening Programme ◽  
Cancer Detection Rate ◽  
Invasive Cancer ◽  
Breast Screening Programme ◽  
National Health Service Breast

Objective— To examine further the effect of using two view mammography in comparison with one view mammography in the detection of small (<15 mm) invasive cancers for programmes in the National Health Service breast screening programme (NHSBSP). The study is in two parts: First the effect on the small invasive cancer detection rate for programmes that changed from using one view to two views for first (prevalent) screens, and secondly the effect on the small invasive cancer detection rate for programmes that used two views for subsequent (incident) screens compared with programmes that used one view. Setting— Screening programme data from the NHSBSP. Methods— Data were collated from all screening programmes in the United Kingdom on standard “Korner” returns (KC62 forms) for the screening years 1 April 1994 to 31 March 1995 and 1 April 199S to 31 March 1996. The comparison between one and two view mammography was made using indirectly age standardised invasive cancer detection rates. Results— For prevalent (first) screens, programmes changing from one view mammography in 1994/95 to two views in 1995/96 reported a 45% (95% confidence interval (CI) 25% to 68%) increase in the detection of invasive cancers of <15 mm. In comparison, programmes that were already using two views in 1994/95 showed no change in 1995/96. For incident (subsequent) screens the small number of programmes that have opted to use two views reported 25% (95% CI 1% to 55%) more invasive cancers of <15 mm than programmes using one view in 1995/96, and 42% (95% CI 11% to 81%) more in 1994/95. Conclusions— These results confirm the benefit of using two view mammography in the detection of small invasive cancers, and provide evidence that this effect is seen in subsequent screens as well as the first screen.

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