Mary Jo Grap1, Christine M Schubert2, Ruth S Burk3, Valentina Lucas4, Paul A Wetzel5, Anathea Pepperl5, Cindy L Munro6. 1. Adult Health and Nursing Systems, Department of the School of Nursing, Virginia Commonwealth University, Richmond, VA, United States. Electronic address: mjgrap@vcu.edu. 2. Department of Mathematics and Statistics, Air Force Institute of Technology, Wright-Patterson Air Force Base, Dayton, OH, United States. 3. Adult Health and Nursing Systems, Department of the School of Nursing, Virginia Commonwealth University, Richmond, VA, United States. 4. Department of Surgery, Virginia Commonwealth University Heath System, Richmond, VA, United States. 5. Biomedical Engineering Department, School of Engineering, Virginia Commonwealth University, Richmond, VA, United States. 6. University of South Florida, Tampa, FL, United States.
Abstract
PURPOSE: High frequency ultrasound (HFUS) systems may identify tissue injury. We compared HFUS tissue characteristics (dermal thickness and dermal density) with visual image examination. METHODS: Longitudinal study in critically ill mechanically ventilated adults, from three ICUs (Surgical Trauma, Medical Respiratory, Neuroscience) enrolled within 24hours of airway intubation. Sacral HFUS images were obtained daily for up to seven days. Expert evaluation of the best image per day was completed and compared to HFUS generated tissue characteristics (dermal thickness and dermal density). RESULTS: Of the113 subjects with 1614 comparisons analysed, 73.2% to 84% were normal, and 6.3% to 11.8% of the comparisons had injury present but no change was noted in the injury observed. There were no significant differences in one-day comparisons among type of injury and mean dermal thickness (p=0.6645) or dermal median intensity (adjusted p=0.06-0.17). All other day-to-day comparisons were similarly non-significant. CONCLUSIONS: We found no association among dermal density, dermal thickness and visual examination of changes in sacral HFUS images for any day-to-day comparison. The use of sacral HFUS as a screening tool for the development of tissue injury is in its infancy. Additional comparative studies should be conducted to identify its future clinical usefulness.
PURPOSE: High frequency ultrasound (HFUS) systems may identify tissue injury. We compared HFUS tissue characteristics (dermal thickness and dermal density) with visual image examination. METHODS: Longitudinal study in critically ill mechanically ventilated adults, from three ICUs (Surgical Trauma, Medical Respiratory, Neuroscience) enrolled within 24hours of airway intubation. Sacral HFUS images were obtained daily for up to seven days. Expert evaluation of the best image per day was completed and compared to HFUS generated tissue characteristics (dermal thickness and dermal density). RESULTS: Of the113 subjects with 1614 comparisons analysed, 73.2% to 84% were normal, and 6.3% to 11.8% of the comparisons had injury present but no change was noted in the injury observed. There were no significant differences in one-day comparisons among type of injury and mean dermal thickness (p=0.6645) or dermal median intensity (adjusted p=0.06-0.17). All other day-to-day comparisons were similarly non-significant. CONCLUSIONS: We found no association among dermal density, dermal thickness and visual examination of changes in sacral HFUS images for any day-to-day comparison. The use of sacral HFUS as a screening tool for the development of tissue injury is in its infancy. Additional comparative studies should be conducted to identify its future clinical usefulness.
Authors: Catherine VanGilder; Gordon D MacFarlane; Patrick Harrison; Charlie Lachenbruch; Stephanie Meyer Journal: Adv Skin Wound Care Date: 2010-06 Impact factor: 2.347
Authors: Mary Jo Grap; Cindy L Munro; Paul A Wetzel; Christine M Schubert; Anathea Pepperl; Ruth S Burk; Valentina Lucas Journal: Am J Crit Care Date: 2016-05 Impact factor: 2.228
Authors: B Nedelec; N J Forget; T Hurtubise; S Cimino; F de Muszka; A Legault; W L Liu; A de Oliveira; V Calva; J A Correa Journal: Skin Res Technol Date: 2015-09-01 Impact factor: 2.365