Does the patient's position alter their ABPI ratio?

I was very fortunate at the World Congress to meet a colleague and customer, Jacqui Fletcher. We had worked together many years before when I was at Smith & Nephew working on Wound Bed Preparation. Jacqui had done her Masters on ABI, with the title of her research above and she was kind enough to share her research with me. Jacqui is at the University of Hertfordshire, School of Nursing and Midwifery. Her email is j.fletcher@herts.ac.uk. It would not be appropriate for me to include her research here. Her work discusses the increasing use of doppler ultrasound as part of an holistic assessment to determine the arterial supply to the leg and that despite publications of guidelines that the technique remains poor. The study clearly identified differences in ABI recorded with the subject sitting or supine which are both statistically and clinically significant.