Non-Invasive Characterization of total Hip Arthroplasty by Means of Passive Acceleration Measurement

Abstract

Abstract-This paper presents a non-invasive measurement method to detect and characterize failures and material imperfections in total joint prostheses based on acceleration measurement. Therefore, a prototype sensor has been developed to fulfill the requirements of a medical-technical sensor. This sensor has been tested on patients with total hip arthroplasty. Special emphasis is put on the real-time processing of measurement data by means of intelligent signal processing as well as reliable and repeatable measurement procedures, including standardized positions for the sensor front-end and a standardized motion-sequence the patient is performing.

The Use Of Optical Sensors To Estimate Pasture Quality

“…In order to improve the accuracy and stability of prediction models, and to define more finite features, multivariate regression approaches have been developed which utilise a higher number of spectral wavebands. The prominent multivariate regression techniques are; step wise regression, principle component analysis (PCA) [16] and partial least square regression (PLSR) [17], all previously used in remote sensing [13].…”

Breath Acetone-Based Non-Invasive Detection of Blood Glucose Levels

“…Non-invasive detection of blood hemoglobin was already reported by our group in the earlier work [1]. Lieschnegg et al have developed a sensor to detect failures and material imperfections in total joint prosthesis based on acceleration measurement non-invasively [2]. Diabetes can also be detected using non-invasive methods.…”

Sensor-Based Wireless Wearable Systems for Healthcare and Falls Monitoring

“…x y z g g g , then Hanning filter and moving average filtering is used to reduce the noise errors [17,18,21]. Integrated acceleration value g can be obtained by the…”