8th Annual Conference Of The British HIV Association [BHIVA] 19 – 21 April 2002, University of York, York

[AUTHOR(S):] P Benn¹. C Ruff², J Cartledge¹, V Sauret², A Copas³, A Linney², IG Williams³ SG Edwards^1
1 Department of Genitourinary Medicine, Camden and Islington CS NHS Trust, ² Medical Physics, University College London Hospital, and ³ Sexually Transmitted Diseases, Royal Free and University College London Medical School, London

BHIVA Conf 2002 Apr 19-21;8:O14

AIMS: To evaluate the use and reproducibility of 3-D laser surface scans to assess facial LA.

METHODS: 16 HIV+ men were recruited from the routine HIV clinic. Patients assessed themselves as having no (n=2), mild (n=3), moderate (n=10) or severe (n=1) facial LA. Details of height, weight, CD4 count, viral load and antiretroviral therapy were recorded. Three blinded clinicians also assessed the severity of facial LA. Two 3-D laser surface scans were taken a week apart by the same technician in a standardized way. The two 3-D digital images were superimposed using bony landmarks. Corresponding points in regions overlying five areas of the face, the forehead, right and left temporal and cheek areas were compared. The mean variability between 50% of corresponding areas was measured.

RESULTS: Overall, the variability between 50% of corresponding points for all five areas was <0.55 mm (forehead = 0.22±0.09 mm; right and left temporal area = 0.4±0.26 mm and 0.35±0.14 mm; right and left cheek areas = 0.55±0.25 mm and 0.55±0.29 mm). Scan reproducibility was not affected by the degree of LA as reported by patient or physician.

DISCUSSION: 3-D laser surface scans of the face are reproducible in patients with and without LA. They may provide an objective means of monitoring facial LA. Further longitudinal studies are needed.

PRESENTING AUTHOR: P Benn

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Copyright © 2002 - British HIV Association (BHIVA) Reproduction of this abstract (other than one copy for personal reference) must be cleared through the BHIVA Organising Secretariat 1 Mountview Court, 310 Friern Barnet Lane, London N20 0LD