Validation of Bedside Ultrasound of Muscle Layer Thickness of the Quadriceps in the Critically Ill Patient (VALIDUM Study): Preliminary Results

¹Kinesiology, University of Waterloo, Waterloo, Ontario, Canada; ²Clinical Evaluation Research Unit, Kingston General Hospital, Kingston, Ontario, Canada; ³Surgery, University of Maryland, Baltimore, MD, USA; ⁴Food Science and Nutrition, University of Minnesota, St Paul, MN, USA; ⁵School of Nursing, University of Pennsylvania, Philadelphia, PA, USA; ⁶Surgery, University of Pennsylvania, Philadelphia, PA, USA; ⁷Clinical Nutrition Support Services, Hospital of the University of Pennsylvania, Philadelphia, PA, USA; ⁸Surgery, Intermountain Medical Center, Murray, UT, USA; ⁹Food and Nutrition, Rush University Medical Center, Chicago, IL, USA