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.

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.

Early rescreen/recall in the UK National Health Service breast screening programme: epidemiological data

1998 ◽  
Vol 5 (3) ◽  
pp. 146-155 ◽  
Author(s):  
G J Ong ◽  
J Austoker ◽  
M Michell
Keyword(s):  
National Health Service ◽  
Cancer Detection ◽  
Breast Screening ◽  
Detection Rate ◽  
Screening Programme ◽  
Epidemiological Data ◽  
Cancer Detection Rate ◽  
Breast Screening Programme ◽  
The United Kingdom ◽  
National Health Service Breast

Objective In the United Kingdom in 1994–95 about 16 500 women aged 50 to 64 were asked to come back earlier than the usual three yearly screening interval for further mammography (early rescreen (ES)) or for a range of further investigations at an assessment centre (early recall (ER)). This study aimed at providing epidemiological data on ES/ER, in particular, how often and why it is used, and what the outcome is of using it. Setting National Health Service breast screening programme in the United Kingdom. Methods All breast screening units were invited to complete a postal questionnaire. Two reminders were sent. The units were asked retrospectively to provide breast screening data about women aged 50 to 64 from their local computer systems. Women placed on ES/ER were followed up for at least one year. Results The response rate was 71% (69/97), of which 14% (10/69) were unable to provide the required data, leaving 59 completed questionnaires (61%). The rate of placing women on ES/ER was above 1.0% for 26/54 (48%) responding breast screening units and above 2.0% for 13/54 (24%) units. Women were placed on ES/ER because of ( a) previous breast cancer (21% of cases; cancer detection rate 2.4%), ( b) diagnostic uncertainty (51%; cancer detection rate 3.0%), or ( c) family history (27%; cancer detection rate 0.6%). Breast screening units with a high rate of placing women on ER were significantly more likely to have a high recall rate ( rS=0.63; n=53; p<0.0005) or a high benign surgical biopsy rate ( rS=0.33; n=49; p<0.05), or both. The cancer detection rate of ES/ER tended to decrease with increasing ES/ER rates ( rS=−0.37; n=51; p<0.01). Conclusions A relatively large number of women were placed on ES or ER for a range of reasons. If the recommendations given are followed, the number of women placed on ER may be reduced while maintaining the cancer detection rate at the required level. The option of ES should not be used.

scholarly journals Results from the NHS Breast Screening Programme 1990–1993

1995 ◽  
Vol 2 (4) ◽  
pp. 186-190 ◽  
Author(s):  
S M Moss ◽  
M Michel ◽  
J Patnick ◽  
L Johns ◽  
R Blanks ◽  
...  
Keyword(s):  
Cancer Detection ◽  
Breast Screening ◽  
Detection Rate ◽  
Screening Programme ◽  
Interval Cancer ◽  
Cancer Detection Rate ◽  
Quality Assurance Programme ◽  
Detection Rates ◽  
Breast Screening Programme ◽  
Single View

Objective –To present results from the NHS breast screening programme (NHSBSP) for the three year period 1990 to 1993, and to examine the extent to which interim targets are being met. Methods –Data have been collated from all screening programmes in the United Kingdom on standard “Korner” returns, supplemented for the year 1991/92 by data from the radiology quality assurance programme. Most of the data refer to the prevalent screening round, but some data on rescreening are also available. Results –The total cancer detection rate at prevalent screens was 6·0/1000, 18% being in situ cancers; the detection rate of invasive cancers ⩽ 10 mm in diameter was 1·3/1000, but data on size were missing for 12% of cancers. Referral rates were significantly lower for programmes using' two view mammography at the prevalent screen than for those using single view, and cancer detection rates were significantly higher. For prevalent screens over the three year period, 70% of programmes had a referral rate of ≤ 7%, 87% had a benign biopsy rate of ≤ 5/1000, and 79% had a cancer detection rate of ≥ 5/1000. By contrast, only 30% of programmes appeared to meet the target detection rate of > ⩽5/1000 for invasive cancers ≤ 10 mm in diameter. Conclusions – While the majority of interim targets are being met by the NHSBSP, the rate of detection of small invasive cancers requires careful monitoring. Collection of more accurate data on size of cancers and interval cancer rates will give a better indication of progress towards the target mortality reduction.

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