MAVIS: a non-invasive instrument to measure area and volume of wounds

Plassmann, P.; Jones, Timothy D.

doi:10.1016/s1350-4533(98)00034-4

Cited by 105 publications

(75 citation statements)

References 4 publications

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“…Of the several contact and non-contact methods proposed for wound dimensional measurement, ruler based technique, transparent tracing, and computer assisted planimetry are most commonly used in clinical daily routine [16,26,27]. The modified ruler technique is simple, fast, and cheap, while its poor precision (25%) for wound with complex shape along with risk of [1][2][3][4][5][6][7][8][9][10][11][12][13] infection made it less reliable [4,28]. Tracing is a more accurate 2D method for wound with irregular shape in which the wound is outlined on a transparent squared acetate sheet and next the wound area is calculated by manually counting the amount of included squares; however, it is a tedious task and has shown poor inter-rater reliability [27,29,30].…”

Section: Clinical Assessment Of Wound Healingmentioning

confidence: 99%

“…Digital photo planimetry has become increasingly popular for wound healing assessment wherein series of well-obtained digital images taken from the same region of an ulcer along with dimensional measurements can be applied as a yardstick to monitor the effectiveness of a treatment strategy [3,4,[39][40][41]. In the context of wound's perimeter, area, and volume measurement, delineation in which details of the surrounding area is isolated from the wound information, is one the most important image processing steps; however, there is no single algorithm in existence that works perfectly for all types of wounds due to "the nature of the wounds".…”

Section: Wound Area Measurement Using Digital Photographymentioning

confidence: 99%

“…These approaches increase the rate of contamination; and are inaccurate with error rate 10-40% and 5-15% for depth estimation using the cotton tips and wound moulds, respectively [46][47][48]. Several approaches tried to develop non-invasive volume measurement applying wound 3D reconstruction including photogrammetry [39,49], structured light analysis [4,17,34,50], and industrial 3D digitiser [18,51].…”

Section: Wound 3d Analysis and Volume Measurementmentioning

confidence: 99%

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Wound Healing Assessment Using Digital Photography: A Review

Mohafez

Ahmad

Roohi

et al. 2016

JBEMi

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Digital photography as a non-invasive, simple, objective, reproducible, and practical imaging modality has been investigated for the wound healing assessment over the last three decades, and now has been widely used in clinical daily routine. Advances in the field of image analysis and computational intelligence techniques along with the improvements in digital camera instrumentation, expand the applications of standardized digital photography in diagnostic dermatology such as evaluation of tumours, erythema, and ulcers. A series of digital images taken at regular intervals carries the most informative wound healing indexes, color and dimension, that may help clinicians to evaluate the effectiveness of a particular treatment regimen, to relieve patient discomfort, to globally assess the healing kinetics, and to quantitatively compare different therapies; however, the extent of underlying tissue damage cannot be fully detected. This paper is an introductory review of the important investigations proposed by researchers in the context of clinical wound assessment. The principles of wound assessment using digital photography were shortly described, followed by review of the related literature in four main domains: wound tissue segmentation, automated wound area measurement, wound three dimensional (3D) analysis and volumetric measurement, and monitoring and evaluation of wound tissue changes during healing.

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Section: Clinical Assessment Of Wound Healingmentioning

confidence: 99%

Section: Wound Area Measurement Using Digital Photographymentioning

confidence: 99%

Section: Wound 3d Analysis and Volume Measurementmentioning

confidence: 99%

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Wound Healing Assessment Using Digital Photography: A Review

Mohafez

Ahmad

Roohi

et al. 2016

JBEMi

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“…7,11 Currently, several other wound measuring methods are described in the literature. [12][13][14][15][16] Most of these methods are carried out manually and the measurement instruments come in direct contact with the patient. Contactless measurement devices, which identify the border of the wound automatically, have been developed recently.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Size of the Surgical Site in Minimally Invasive Hip Surgery

Putzer

Haselbacher

Klug

et al. 2014

Advances in Wound Care

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Objective: Minimally invasive approaches to the hip are beneficial to the patient, but reduce the space available for manipulation by the surgeon. Determining the available working space is important for the development of surgical instruments, to track movements during surgery, as well as to classify the invasiveness of the procedure. Approach: We evaluate three measurement methods to assess the volume of eight surgical sites in a cadaver study. The cavities were filled with an alginate cast to determine its dimensions. Second, the depth, height, and width of the surgical site were measured with a ruler and the volume was calculated. Last, the surface registration method was used to reconstruct the site. Results: We found that the mold filling method provides accurate results in determining the volume of a surgical site. The manual method using a ruler showed excellent reliability, but the calculations tended to overestimate the volume of the surgical site. In contrast, surface reconstruction tended to underestimate the volume of a surgical site, but the results closer resembled the ones derived from the mold filling method.

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“…Concerning the spatial measurements, some prototypes based on structured light techniques (Krouskop et al, 2002) or photogrammetry (Malian et al, 2002;Plassmann and Jones, 1998) were tested, but these cumbersome and complex systems were not adapted to the clinical practice which requires a low cost, handy and simple tool operated by a nurse. The second version of the MAVIS system (Jones et al, 2006) which uses only a reflex digital camera equipped with special dual lens optics can record two half images from slightly different viewpoints on a single shot.…”

Section: Introductionmentioning

confidence: 99%

Combined Machine Learning With Multi-View Modeling for Robust Wound Tissue Assessment

Wannous¹,

Lucas²,

Treuillet³

2010

Proceedings of the International Conference on Computer Vision Theory and Applications

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Abstract:From colour images acquired with a hand held digital camera, an innovative tool for assessing chronic wounds has been developed. It combines both types of assessment, colour analysis and dimensional measurement of injured tissues in a user-friendly system. Colour and texture descriptors have been extracted and selected from a sample database of wound tissues, before the learning stage of a support vector machine classifier with perceptron kernel on four categories of tissues. Relying on a triangulated 3D model captured using uncalibrated vision techniques applied on a stereoscopic image pair, a fusion algorithm elaborates new tissue labels on each model triangle from each view. The results of 2D classification are merged and directly mapped on the mesh surface of the 3D wound model. The result is a significative improvement in the robustness of the classification. Real tissue areas can be computed by retro projection of identified regions on the 3D model.

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MAVIS: a non-invasive instrument to measure area and volume of wounds

Cited by 105 publications

References 4 publications

Wound Healing Assessment Using Digital Photography: A Review

Wound Healing Assessment Using Digital Photography: A Review

Assessment of the Size of the Surgical Site in Minimally Invasive Hip Surgery

Combined Machine Learning With Multi-View Modeling for Robust Wound Tissue Assessment

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