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Oral Abstracts (Session 3 of 5)
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Moderator: Susan Dieter, RN, MS, CWCN, CWS (Presentation 34.5) Wound mapping* with high-resolution ultrasound provides objective, accurate, and reproducible wound measurements for clinical trials Martin E. Wendelken, DPM, RN, BioVisual Technologies, Elmwood, NJ; Mayank Patel, MD, University Wound Care Center, East Tremont Vascular Center, Bronx, NY; Christopher Comfort, MD; Lee Markowitz, DPM; Oscar M. Alvarez, PhD, Center for Palliative Wound Care Calvary Hospital, Bronx, NY Abstract: Clinical studies designed to evaluate the effect of an agent on wound healing rely on wound area measurements obtained from serial tracings of the wound (perimeter). Wound tracings as well as physical measurements are subjective in that it requires interpretation of the marginal epithelium. In wounds that have tunneling or sinus tracts, accurate and reproducible measurements are even more difficult to obtain. A high-resolution ultrasound device (Aloka SSD-900, Aloka Inc, Wallingford, Conn) equipped with a 40mm 10-MHz linear array transducer was used for B-Mode scanning of skin wounds up to 4cm deep. Scans were taken in both a cross-sectional view and longitudinal section to provide a clear illustration of the wound and surrounding tissue. One hundred wounds of differing etiologies were scanned to evaluate surface area and density. Length, width, and depth measurements obtained from the scans were compared to the same measurements obtained in the traditional manner. Surface area measurements obtained from wound perimeter tracings were relatively accurate compared to scans (>85% within 3mm). However, in deeper wounds involving subcutaneous tissues, traditional measurements lacked accuracy and had poor reproducibility. In clinical studies involving deeper wounds, such as pressure ulcers, diabetic foot ulcers, surgical wounds, or full-thickness excisions, Wound-Mapping provides more accurate and reproducible measurements for statistical comparison. * Wound-Mapping is a registered mark of BioVisual Technologies, LLC, Elmwood, NJ References 1. Wendelken ME, Markowitz L, Patel M, Alvarez OM. Objective, noninvasive, wound assessment using B-mode ultrasonography. WOUNDS. 2003;15(11):351–360. |
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