Respiratory surface motion measurement by Microsoft Kinect: implementation and evaluation of a clinical setup

TY - JOUR

T1 - Respiratory surface motion measurement by Microsoft Kinect: implementation and evaluation of a clinical setup

AU - Ortmüller, Jonas

AU - Gauer, Tobias

AU - Wilms, Matthias

AU - Handels, Heinz

AU - Werner, Rene

PY - 2015/9/12

Y1 - 2015/9/12

N2 - In radiotherapy of abdominal and thoracic tumors, respiratory motion is a problem for an accurate treatment. Most current motion compensation techniques rely on externally acquired breathing signals of the patient. The systems in clinical use usually work with 1D surface motion signals to describe internal structure respiratory motion patterns. As a 1D signal is not able to describe complex motion patterns and breathing variations, in this work the Microsoft Kinect, which can record multidimensional respiratory surface motion signals, is proposed to be used instead. For the Kinect, a clinically acceptable measurement setup is designed and Kinect measurements are compared to the Varian RPM system (clinical standard). The results show that the signals are well aligned. An additional comparison of Kinect signals from different regions of interest on the chest further reveals variations between them. This illustrates that the use of a system that provides multidimensional signals is worthwhile; the knowledge about breathing variations could be applied for optimization of current clinical workflows.

AB - In radiotherapy of abdominal and thoracic tumors, respiratory motion is a problem for an accurate treatment. Most current motion compensation techniques rely on externally acquired breathing signals of the patient. The systems in clinical use usually work with 1D surface motion signals to describe internal structure respiratory motion patterns. As a 1D signal is not able to describe complex motion patterns and breathing variations, in this work the Microsoft Kinect, which can record multidimensional respiratory surface motion signals, is proposed to be used instead. For the Kinect, a clinically acceptable measurement setup is designed and Kinect measurements are compared to the Varian RPM system (clinical standard). The results show that the signals are well aligned. An additional comparison of Kinect signals from different regions of interest on the chest further reveals variations between them. This illustrates that the use of a system that provides multidimensional signals is worthwhile; the knowledge about breathing variations could be applied for optimization of current clinical workflows.

U2 - 10.1515/cdbme-2015-0067

DO - 10.1515/cdbme-2015-0067

M3 - SCORING: Journal article

VL - 1

SP - 270

EP - 273

JO - Current Directions in Biomedical Engineering

JF - Current Directions in Biomedical Engineering

SN - 2364-5504

IS - 1

ER -