AbstractsS50

Duplex and colour Doppler ultrasonography of ophthalmic,ciliar and central retinal arteries of both eyes were performedin all the patients. The following parameters were measured:peak systolic (PSFV), enddiastolic (EDFV) flow velocities andmean flow velocity (MFV) through entire cardiac cycle andpulsatility (PI) index. Statistical analysis was accomplishedusing unpaired Student’s t-test and simple regression analyseswas applied for the correlation of vascular resistance indexesand blood parameters.

PControlsParameters Patients

Ophthalmic arteryNSPSFV (cm/s) 38.497.245.5916.4NS11.594.6EDFV (cm/s) 13.095.5NS16.595.6MFV (cm/s) 20.898.8NS1.5890.4 1.5590.6PI

Short ciliar artery10.2+2.0 12.494.3 NSPSFV (cm/s)

4.891.0 B0.005EDFV (cm/s) 2.890.86.090.7 7.291.3MFV (cm/s) NS

1.090.1PI B0.0031.2290.1

Central retinal artery7.191.09 10.191.9PSFV (cm/s) NS

3.890.9 B0.011.3590.7EDFV (cm/s)NS4.691.1MFV (cm/s) 3.590.5

1.490.4 B0.003PI 1.64902

EDFV inversely correlates with haemoglobin level (r= −0.53,PB0.002) and haematocrit level (r= −0.52, PB0.01), whilePI positively correlated with HGB (r=0.81, PB0.01), HCT(r=0.66, PB0.05) and mean corpuscular haemoglobin (r=0.52, PB0.01).

In conclusion, ophthalmic vascular resistance, as assessed byduplex ultrasonography is impaired in SCD patients predomi-nantly in small calibre vessels as short ciliar and retinalarteries. The enhanced resistivity are related to disturbances oferythrocyte membrane permeability and blood viscosity.

Secondly, duplex ultrasonography is an advanced, noninva-sive method in the assessment and monitoring of retinalvascular resistance in SCD.

Changes in orbital hemodynamics in Behcet’s disease with signsof ocular involvementAikimbaev K.S.a; Oguz M.a; Soylu M.b; Isiguzel I.b; DemircanN.b; Yalaz M.b aCukuro6a Uni6ersity, Balcali Hospital, Medi-cal FacultybRadiology and Ophthalmology Departments, Adana, 01330,Turkey

In the present study 22 patients with Behcet’s disease and 22age and sex-matched healthy volunteers were studied withcolour Doppler imaging. In order to detect the hemodynamicchanges in Behcet’s disease, the peak systolic (PSFV), mini-mum diastolic (MDFV) flow velocities, mean flow velocitythrough entire cardiac cycle (MFV), resistivity (RI) and pul-satility (PI) indexes of central retinal artery, short posteriorciliary arteries and ophthalmic artery were determined.

P* Control P**Parameters Inactive eyeActive eye

Ophthalmic artery34.0597.71 34.1699.81NSNSPSFV (cm/s) 31.5399.98

8.6492.87 NSMDFV (cm/s) 7.6092.96 NS 9.7293.7214.4895.22NS15.1594.42NSMFV (cm/s) 12.8793.36

NS 0.7490.06 NSRI 0.7290.070.7690.06NS 1.7390.04 NSPI 1.9490.44 1.8290.51

Central retinal arteryNS 1.8290.51PSFV (cm/s) 7.1892.21 NS 7.6891.39

2.6890.63 NSMDFV (cm/s) 2.1891.20 NS 2.4891.20NS4.4190.94 3.9291.09MFV (cm/s) 3.8891.32

NS 1.1590.28 NSRI 1.4390.550.7190.131.4390.55NSPI 1.1490.63 NS 1.1590.28

Short posterior ciliar arteryNS11.8691.39 8.0091.85B0.01MSFV (cm/s) 9.4192.26

B0.001 4.2391.08 B0.001MDFV (cm/s) 2.5091.322.8290.984.5091.35B0.016.9191.14B0.01MFV (cm/s) 4.5391.46

B0.05 0.7190.13RI 0.7090.10 B0.05 0.6490.08B0.05 1.4790.69PI 1.1490.63 NSB0.05 1.1890.37

In conclusion, the small calibre vessels are mostly affectedpatients with Behcet’s disease.

These initial results suggested that orbital hemodynamicchanges may play a role in the etiopathogenesis and thediagnosis of Behcet’s disease.

The BMUS historical collectionFleming J.E.E.a; Spencer I.H.b; Nicolson M.A.b aBMUS His-torical Collection Co-ordinator, Department of O and G, Uni-6ersity of Glasgow, The Queen Mother’s Hospital, Glasgow G38SH, UKbWellcome Unit for the History of Medicine, Uni6ersity ofGlasgow, Glasgow G12 8QQ, UK

Introduction: The collection was established in 1984 to col-lect, document, preserve, exhibit and interpret artefacts andother material relating to diagnostic and therapeutic ultra-sound in Britain. The material, some dating back to the 1950s,is available to Society members and other interested individu-als and institutions for education, research and interest.

The Collection is on display in QMH, Glasgow; by 1997 itwill move to the Hunterian Museum, University of Glasgow.Included in the Collection are:� Scanners, transducers and associated hardware� Images, films, video and audio tapes� Photos of Instruments and people� Manufacturers’ documents—all types� Personal accounts, letters, interviews� Original of papers� ReviewsThe Display: Posters showing established items from the Col-lection and recent additions. A selection of slides and videomaterial from the Collection.

Recent and Current Acti6ities: The last year’s activities re-lated to the Collection and supported by a Wellcome Trustgrant included: Re-enactment of Ian Donald’s experiments inJuly 1955, Glasgow, July 96. Interviews by IHS, and transcrip-tion. Copying and assessment of Prof Ian Donald’s papers onloan from Mrs Donald.

Abstracts S51

Talks: ‘The Role of Medical Ultrasound in the AbortionDebate in Scotland’, BSA Med Sociology Group (Scot.Branch), Perth, May 96. ‘Clinical Ultrasound and Inter-Pro-fessional Rivalries’, Society for the History of Technology,London, Aug 96. ‘Ultrasound and the Fetal Image’, Nat.Conf. BSA Med Sociology Group, Edinburgh, 9-96 and His-tory of Med. Seminar, Hallam University in Sheffield, 10–96.‘Fourty years of Ultrasound’, Euro. Congr. of PerinatalMedicine, Glasgow, Sept 96.

Exhibitions: European Congress of Perinatal Medicine,Glasgow, Sept 96. Non-Destructive Testing Society Confer-ence, Renfrew, Sept 96.

Contributions to and use of the Collection: Contributions ofmaterial of all types relating to all aspects of medical ultra-sound are welcome. Particularly important are items not nor-mally kept by libraries. If you have anything to contribute orwish to view, or use the collection for exhibition or researchplease contact the author or BMUS General Secretary.

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