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Electronic Pen-based Cognitive Dysfunction Assessment System

전자펜을 활용한 인지기능장애 환자 검사 시스템

  • 신상호 (인하대학교 정보통신공학과) ;
  • 지혜미 (남서울대학교 스포츠건강관리학과) ;
  • 박재현 (인하대학교 정보통신공학과)
  • Received : 2017.08.08
  • Accepted : 2017.11.22
  • Published : 2018.01.15

Abstract

The assessment and rehabilitation of patients with cognitive dysfunction is a field that currently requires assistive technology. While the paper-and-pencil test, such as the line tracing test (LTT), is one of the most commonly used assessment methods for cognitive dysfunction, it has become time-consuming due to its manual characteristic. The aim of this study was therefore to establish a computer-based real-time assessment system for patients without compromising the usefulness of the conventional paper-and-pencil based user tools. A digital pen-based assessment and rehabilitation system, the ePen System, could eliminate the time required for manual assessment while maintaining the measurement accuracy. The proposed system may assist rehabilitation specialists to assess and diagnose patients with unilateral visual neglect. This system can be applied to a range of assessment and rehabilitation modalities based on pen and paper. It can also be used for various patients such as those with Parkinson's disease, stroke, or different forms of brain lesions.

본 논문은 인지기능장애를 동반한 환자를 검사하고, 재활치료와 인지기능 평가를 하는데 사용될 수 있는 전자펜 기반의 시스템을 제안하고 있다. 제안된 시스템은 기존에 병원에서 널리 사용 중인 종이와 펜을 활용한 라인추종시험(Line tracing test; LTT)을 그대로 응용함으로써, 환자와 치료사가 거부감 없이 새로운 시스템을 적용할 수 있도록 하였다. 개발된 시스템의 정확성과 효과를 검증하기 위하여 성인 남녀 20명을 대상으로 시험한 결과, 전자펜을 활용한 측정치와 사람이 직접 측정한 측정치 간의 신뢰도가 0.90으로, 효과크기는 0.38로 평가되었으며 이는 전자펜을 활용한 검사 결과를 충분히 신뢰할 수 있음을 의미한다. 이와같이 신뢰성을 유지하는 반면, 검사 결과를 산출하는 시간에 있어서 사람이 직접 산출하는 경우 평균 48.2초가 소요되는데 반하여 전자펜을 기반으로 하는 방식의 경우 실시간으로 평가 결과가 기록되며 검사 종료 후 즉시(1초이내) 결과가 산출되기 때문에 시간 효율이 높음을 확인할 수 있다. 제안된 시스템은 파킨슨병, 심장마비 등으로 인한 뇌손상 환자의 인지기능장애 검사에 활용될 수 있다.

Keywords

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