Simulated Wound Volume Measurement Using 3D Stereophotogrammetry

D Thompson, Jill Cundell, DA McDowell, John Winder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ulceration of the lower limb is a growing clinical problem with significant economic impact on the NHS. Such ulcers are currently assessed by visual estimation of changes in surface area and depth, which is both subjective and potentially unreliable, especially in relation to wounds of irregular shape. More objective methods of measurement which can assess changes in wound volume would be advantageous in monitoring changes and in the assessment of the efficacy of clinical interventions. This study investigated the Di3D stereophotogrammetry system which allows fast, high-resolution, photo-realistic remote determination of 3D surfaces. A lower-limb model was developed and imaged to compare measurements by Di3D to those made by Vernier callipers. Physical and digital landmarks were placed on the model and on the computer generated surface. Five cavities of clinically relevant volumes were modelled and imaged to investigate the accuracy of volume measurement by Di3D and 3D volume analysis software. The system showed a mean linear measurement difference of 0.33mm and volume measurement difference ranged from -2.22% (for the largest cavity) to +8.54% (for the smallest). This study demonstrates that Di3D can accurately reproduce and quantify 3D surfaces and may be of clinical value estimating the 3D parameters of lower-limb ulcers.
LanguageEnglish
Title of host publicationUnknown Host Publication
Number of pages345
Publication statusPublished - 1 Jul 2011
EventIrish Machine Vision and Image Processing Conference (IMVIP-2010) - Limerick University, Limerick
Duration: 1 Jul 2011 → …

Conference

ConferenceIrish Machine Vision and Image Processing Conference (IMVIP-2010)
Period1/07/11 → …

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Volume measurement
Economics
Monitoring

Cite this

Thompson, D., Cundell, J., McDowell, DA., & Winder, J. (2011). Simulated Wound Volume Measurement Using 3D Stereophotogrammetry. In Unknown Host Publication
Thompson, D ; Cundell, Jill ; McDowell, DA ; Winder, John. / Simulated Wound Volume Measurement Using 3D Stereophotogrammetry. Unknown Host Publication. 2011.
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title = "Simulated Wound Volume Measurement Using 3D Stereophotogrammetry",
abstract = "Ulceration of the lower limb is a growing clinical problem with significant economic impact on the NHS. Such ulcers are currently assessed by visual estimation of changes in surface area and depth, which is both subjective and potentially unreliable, especially in relation to wounds of irregular shape. More objective methods of measurement which can assess changes in wound volume would be advantageous in monitoring changes and in the assessment of the efficacy of clinical interventions. This study investigated the Di3D stereophotogrammetry system which allows fast, high-resolution, photo-realistic remote determination of 3D surfaces. A lower-limb model was developed and imaged to compare measurements by Di3D to those made by Vernier callipers. Physical and digital landmarks were placed on the model and on the computer generated surface. Five cavities of clinically relevant volumes were modelled and imaged to investigate the accuracy of volume measurement by Di3D and 3D volume analysis software. The system showed a mean linear measurement difference of 0.33mm and volume measurement difference ranged from -2.22{\%} (for the largest cavity) to +8.54{\%} (for the smallest). This study demonstrates that Di3D can accurately reproduce and quantify 3D surfaces and may be of clinical value estimating the 3D parameters of lower-limb ulcers.",
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Thompson, D, Cundell, J, McDowell, DA & Winder, J 2011, Simulated Wound Volume Measurement Using 3D Stereophotogrammetry. in Unknown Host Publication. Irish Machine Vision and Image Processing Conference (IMVIP-2010), 1/07/11.

Simulated Wound Volume Measurement Using 3D Stereophotogrammetry. / Thompson, D; Cundell, Jill; McDowell, DA; Winder, John.

Unknown Host Publication. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Simulated Wound Volume Measurement Using 3D Stereophotogrammetry

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AU - Cundell, Jill

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AU - Winder, John

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N2 - Ulceration of the lower limb is a growing clinical problem with significant economic impact on the NHS. Such ulcers are currently assessed by visual estimation of changes in surface area and depth, which is both subjective and potentially unreliable, especially in relation to wounds of irregular shape. More objective methods of measurement which can assess changes in wound volume would be advantageous in monitoring changes and in the assessment of the efficacy of clinical interventions. This study investigated the Di3D stereophotogrammetry system which allows fast, high-resolution, photo-realistic remote determination of 3D surfaces. A lower-limb model was developed and imaged to compare measurements by Di3D to those made by Vernier callipers. Physical and digital landmarks were placed on the model and on the computer generated surface. Five cavities of clinically relevant volumes were modelled and imaged to investigate the accuracy of volume measurement by Di3D and 3D volume analysis software. The system showed a mean linear measurement difference of 0.33mm and volume measurement difference ranged from -2.22% (for the largest cavity) to +8.54% (for the smallest). This study demonstrates that Di3D can accurately reproduce and quantify 3D surfaces and may be of clinical value estimating the 3D parameters of lower-limb ulcers.

AB - Ulceration of the lower limb is a growing clinical problem with significant economic impact on the NHS. Such ulcers are currently assessed by visual estimation of changes in surface area and depth, which is both subjective and potentially unreliable, especially in relation to wounds of irregular shape. More objective methods of measurement which can assess changes in wound volume would be advantageous in monitoring changes and in the assessment of the efficacy of clinical interventions. This study investigated the Di3D stereophotogrammetry system which allows fast, high-resolution, photo-realistic remote determination of 3D surfaces. A lower-limb model was developed and imaged to compare measurements by Di3D to those made by Vernier callipers. Physical and digital landmarks were placed on the model and on the computer generated surface. Five cavities of clinically relevant volumes were modelled and imaged to investigate the accuracy of volume measurement by Di3D and 3D volume analysis software. The system showed a mean linear measurement difference of 0.33mm and volume measurement difference ranged from -2.22% (for the largest cavity) to +8.54% (for the smallest). This study demonstrates that Di3D can accurately reproduce and quantify 3D surfaces and may be of clinical value estimating the 3D parameters of lower-limb ulcers.

M3 - Conference contribution

SN - 9781443829625

BT - Unknown Host Publication

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Thompson D, Cundell J, McDowell DA, Winder J. Simulated Wound Volume Measurement Using 3D Stereophotogrammetry. In Unknown Host Publication. 2011