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OCT, should this link to a DRS Programme?

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Presentation on theme: "OCT, should this link to a DRS Programme?"— Presentation transcript:

1 OCT, should this link to a DRS Programme?
Dr John Olson

2 Retinal screening Everyone with diabetes invited for annual photographic screening. Photographs graded. Referred to ophthalmologist if there are signs of potentially sight threatening disease.

3 Scotland June 2009

4 Scotland June 2009

5 Methods Anonymised photographs and grading results
Screening centres: NHS Fife and NHS Glasgow Date range: 01/01/2007 – 31/01/2008 Images: 85,884 Episodes: 36,063 Patients: 33,535 Fife: 10412 Glasgow: 25657

6 Outcomes Grade Number % Automated Confidence Int RO 21,503 64.1% 49.6
R1 7,964 23.7% 83.9 R2 193 0.6% 99.2 M1 387 1.2% 100 M2 1,130 3.4% 97.3 R3 324 1.0% R4 180 0.5% TF 1,827 5.4% 99.8

7 Ophthalmologists don’t like
Technical Failures 5.4% (1,827) M2 3.4% (1130)

8 Retinal photography Photographs taken using a non-mydriatic digital colour fundus camera (opposite). Give no depth indication; cannot detect oedema directly. Oedema inferred by presence of surrogate features, such as exudates and blot haemorrhages. Which of the following are referable? Which have clinically significant macular oedema…

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15 Project website: http://www.abdn.ac.uk/mos/
Improving the value of screening for diabetic macular oedema using surrogate photographic markers. Project website: HTA 06/402/49

16 Study centres Study centres Aberdeen Birmingham Dundee Edinburgh
Glasgow Liverpool Oxford Aberdeen Dundee Glasgow Edinburgh Liverpool Birmingham Oxford © 2008 Google-Imagery © 2008 TerraMetrics

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18 Impact on Ophthalmology

19 OCT, should this link to a DRS Programme?


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