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Related Experiment Video

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Isokinetic Robotic Device to Improve Test-Retest and Inter-Rater Reliability for Stretch Reflex Measurements in Stroke Patients with Spasticity

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A new device to measure upper limb circumferences: validity and reliability.

N Devoogdt¹, H Lemkens, I Geraerts

¹Department of Physiotherapy, University Hospitals Leuven, Belgium, Faculty of Kinesiology and Rehabilitation Sciences Catholic University of Leuven, Leuven, Belgium. nele.devoogdt@artesis.be

International Angiology : a Journal of the International Union of Angiology

|October 7, 2010

Summary

This study validates a new, inexpensive device for accurately measuring arm circumference and volume in breast cancer patients. The device offers reliable and quick measurements, crucial for monitoring lymphedema.

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Integrating Augmented Reality Tools in Breast Cancer Related Lymphedema Prognostication and Diagnosis

Integrating Augmented Reality Tools in Breast Cancer Related Lymphedema Prognostication and Diagnosis

Published on: February 6, 2020

Area of Science:

Medical Devices
Clinical Measurement
Oncology

Background:

Traditional arm circumference measurements can be disadvantageous for monitoring lymphedema in breast cancer patients.
Accurate and reliable measurement of arm volume is essential for clinical assessment and management of lymphedema.
A novel measurement device was developed to address limitations of existing methods.

Purpose of the Study:

To evaluate the reliability and validity of a newly developed measurement device for arm circumference.
To compare the new device's performance against traditional methods and water displacement for arm volume calculation.
To establish the clinical significance of changes in arm circumference and volume measurements.

Main Methods:

A self-developed device with a fixed tapeline was used to measure arm circumference at specific points on the non-operated side of 64 breast cancer patients.
Intrarater and interrater reliability were assessed by measuring patients multiple times with the same or different assessors.
Arm volume was calculated using the frustum formula and directly measured via water displacement.

Main Results:

High intraclass correlation coefficients (ICCs) ranging from 0.942 to 0.998 indicated excellent reliability for circumference measurements.
Calculated arm volume also demonstrated very high ICCs, with low standard errors of measurement (0.8%-2.0%).
Clinically significant changes were defined as >= 1.0 cm increase in arm circumference or >= 55 ml in arm volume.

Conclusions:

The new device provides a simple, inexpensive, and accurate method for measuring arm circumference.
The device enables quick and reliable calculation of arm volume, aiding in lymphedema assessment.
This tool enhances the ability to monitor and manage arm swelling in breast cancer survivors.