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Related Experiment Video

Updated: Jan 5, 2026

Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram

Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram

Published on: July 7, 2023

Computerized quantification of pain drawings.

Søren O'Neill^1,2, Tue Secher Jensen^3,4,5, Peter Kent^6,7

¹Spine Center of Southern Denmark, Lillebælt Hospital, Middelfart, Denmark.

Scandinavian Journal of Pain

|October 13, 2019

Summary

This summary is machine-generated.

Computerized quantification of pain drawings is complex. Different methods capture pain area similarly but yield varying estimates, influenced by patient drawing style. A combined approach is recommended.

Keywords:

back pain computer analysis pain drawing pain measure quantification spinal pain

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Last Updated: Jan 5, 2026

Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram

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Area of Science:

Biomedical Informatics
Medical Imaging Analysis
Pain Research

Background:

Assessing pain drawings manually is subjective and time-consuming.
Computerized algorithms offer potential for objective and efficient quantification of pain drawings.
Formal computer-based quantification of pain drawings presents unique challenges.

Purpose of the Study:

To compare seven distinct computer-based quantification methods for clinical spinal pain drawings.
To evaluate the reliability and consistency of different quantification approaches.
To identify factors influencing the accuracy of pain area estimation from drawings.

Main Methods:

Analysis of 55,720 pain drawings from the SpineData clinical registry.
Comparison of raster and vector image analysis techniques.
Utilized principal component analysis, correlation, and linear regression for data analysis.

Main Results:

The first principal component explained 81% of variance, representing true pain area.
Different quantification methods showed strong correlations (0.66-1.00) but varied in area estimates.
Patient drawing style significantly interacted with quantification method, affecting results.

Conclusions:

While different methods assess the same pain area construct, estimates are not interchangeable.
The choice of quantification method must consider the patient's drawing style.
A differentiated approach combining quantification results and drawing style is necessary for accurate pain area estimation.