Mobile Structure Sensor for Real-Time 3D Wound Assessment: Ex-Vivo Validation Using Wound Phantoms

By June 6, 2015Publication
Tissue-Classification-fetured

2014 Disclosure

 

Kyle Wu is a co-inventor of “Method and System for Wound Assessment and Management, ”
US Patent 14/491794, patent pending.

Kyle Wu is a minority shareholder of eKare Inc. that co-develops the technology presented.

ACS Clinical Congress 2014

MOBILE WOUNDASSESSMENT USING
NOVEL COMPUTERVISION METHODS

Wu K,GulerO, Cheng P, Kim P CW

Presented by: Kyle L.Wu, MD, MBA

SheikhZayed Institute for Surgical Innovation
Children’s National HealthSystem

10/30/2014

ChronicWound in the US

6.5 Million

Americans Affected (1)

$25 Billion

Dollars Spent on Treatment (1)

5%

Increase every year on spending (2)

0

Gold Standard for Wound Assessment

  1. Sen CK1, Gordillo GM, Roy S, Kirsner R, Lambert L, Hunt TK, Gottrup F, Gurtner GC, Longaker MT. Human skin wounds: a major and snowballing threat to public health and the economy. Wound Repair Regen. 2009 Nov-Dec;17(6):763-71
  2. Global Industry Analysts I. Wound Care Products: A Global Strategic Business Report . Global Industry Analysts; 2008.

Up to 40% Measurement Errors (3)

  1. Langemo D, Anderson J, Hanson D, Hunter S, Thompson P. Measuring wound length, width, and area: which technique? Advances in Skin & Wound Care, January 2008, 21(1): 42-45.

PracticalAlternative?

Innovation

Methods: Overview

Methods:Graph Cut

(5) “A Graph Cut Approach to Image Segmentation in Tensor Space”, Malcolm, Rathi, Tannenbaum, Workshop on Component Analysis Methods, 2007.

Methods: Study Design

Study Setup

  • 60 Wound images (6)
  • 5 clinical experts (1 trial run)
  • Wound tracing:
    • – Manual
    • – Automated

Measurement

  • Time to complete task
  • Overlap Score

(6) Medetec Wound Database: <ww.medetec.co.uk/files/medetec-image-databases.html?

Methods: Overlap Score

Results: Border Delineation

Results:Tissue Classification

Results: CompletionTime

Results: Overlap Scores

Conclusion

  • Quick/accurate border delineation
  • Objective assessment of tissue classification
  • Designed for mobile use at the point-of-service
  • Key components of a larger wound assessment solution

Acknowledgement

GUMC

  • John Steinberg, DPM
  • Paul Kim, DPM
  • Kevin Han, MD
  • Jeremy Sinkin, MD

CNMC

  • Peter Kim, MD, PhD
  • Patrick Cheng, MBA
  • Ozgur Guler, PhD
  • June Amling, RN, WOCN

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