Circumferential versus Hand-held Laser Scanner Method for the Evaluation of Lower Limb Volumes in Normal-weight and Obese Subjects

Cau, Nicola; Corna, Stefano; Aspesi, Valentina; Postiglione, Francesco; Galli, Manuela; Tacchini, Elena; Brugliera, Luigia; Cimolin, Verônica; Capodaglio, Paolo

doi:10.4172/2165-7025.1000303

Cited by 9 publications

(11 citation statements)

References 8 publications

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“…High-level scanners demonstrated excellent agreement (ICC: 0.99 − 1.0) and 0.15% mean differences with the currently used technique of measurement for orthotics (manual measurement). These results are consistent with Cau et al’s study [ 28 ], which compared lower limb circumferences between manual measurements and handheld 3D scanner in normal and obese populations. Besides, the high-level 3D scanner has a better intra-assessor reliability.…”

Section: Discussionsupporting

confidence: 93%

“…Low-cost 3D scanners have been proven to be accurate in measuring human foot anthropometry [ 12 , 15 ], but shape and size of the lower limbs, such as the knee, cannot be compared to foot shape. Concerning lower limbs, only one study looked at differences between manual measurement and handheld 3D scanners [ 28 ]. This study found a good agreement between measurements from different sections of the lower limb, but they only used a high-level one and they did not look at the reliability of these measurements.…”

Section: Introductionmentioning

confidence: 99%

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Measurements agreement between low-cost and high-level handheld 3D scanners to scan the knee for designing a 3D printed knee brace

Dessery

Pallari²

2018

PLoS ONE

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Use of additive manufacturing is growing rapidly in the orthotics field. This technology allows orthotics to be designed directly on digital scans of limbs. However, little information is available about scanners and 3D scans. The aim of this study is to look at the agreement between manual measurements, high-level and low-cost handheld 3D scanners. We took two manual measurements and three 3D scans with each scanner from 14 lower limbs. The lower limbs were divided into 17 sections of 30mm each from 180mm above the mid-patella to 300mm below. Time to record and to process the three 3D scans for scanners methods were compared with Student t-test while Bland-Altman plots were used to study agreement between circumferences of each section from the three methods. The record time was 97s shorter with high-level scanner than with the low-cost (p = .02) while the process time was nine times quicker with the low-cost scanner (p < .01). An overestimation of 2.5mm was found in high-level scanner compared to manual measurement, but with a better repeatability between measurements. The low-cost scanner tended to overestimate the circumferences from 0.1% to 1.5%, overestimation being greater for smaller circumferences. In conclusion, 3D scanners provide more information about the shape of the lower limb, but the reliability depends on the 3D scanner and the size of the scanned segment. Low-cost scanners could be useful for clinicians because of the simple and fast process, but attention should be focused on accuracy, which depends on the scanned body segment.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Measurements agreement between low-cost and high-level handheld 3D scanners to scan the knee for designing a 3D printed knee brace

Dessery

Pallari²

2018

PLoS ONE

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“…It is also being used for ever more complex tasks in maxillofacial surgery [2] and is finding application for augmented reality and virtual reality [3]. Clinicians of a growing number of medical disciplines effectively apply this radiation-free and cost-efficient technology to monitor specific anatomical regions, such as the breast [4,5], face [6,7], or leg [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Presently used methods to quantify limb volume changes include standardized tape measurements to estimate volume, water displacement, perometry, computer tomography (CT), and magnetic resonance imaging (MRI). Numerous studies have compared these methods [8,[10][11][12][13][14][15]. While they are all routinely applied in clinical practice, each comes with certain benefits and limitations.…”

Section: Introductionmentioning

confidence: 99%

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Digital Leg Volume Quantification: Precision Assessment of a Novel Workflow Based on Single Capture Three-dimensional Whole-Body Surface Imaging

et al. 2021

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Whole-body three-dimensional surface imaging (3DSI) offers the ability to monitor morphologic changes in multiple areas without the need to individually scan every anatomical region of interest. One area of application is the digital quantification of leg volume. Certain types of morphology do not permit complete circumferential scan of the leg surface. A workflow capable of precisely estimating the missing data is therefore required. We thus aimed to describe and apply a novel workflow to collect bilateral leg volume measurements from whole-body 3D surface scans regardless of leg morphology and to assess workflow precision. For each study participant, whole-body 3DSI was conducted twice successively in a single session with subject repositioning between scans. Paired samples of bilateral leg volume were calculated from the 3D surface data, with workflow variations for complete and limited leg surface visibility. Workflow precision was assessed by calculating the relative percent differences between repeated leg volumes. A total of 82 subjects were included in this study. The mean relative differences between paired left and right leg volumes were 0.73 ± 0.62% and 0.82 ± 0.65%. The workflow variations for completely and partially visible leg surfaces yielded similarly low values. The workflow examined in this study provides a precise method to digitally monitor leg volume regardless of leg morphology. It could aid in objectively comparing medical treatment options of the leg in a clinical setting. Whole-body scans acquired using the described 3DSI routine may allow simultaneous assessment of other changes in body morphology after further validation.

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Lower Limb Lymphedema

Ricci

Federighi

Capodaglio

2020

Rehabilitation Interventions in the Patient With Obesity

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Circumferential versus Hand-held Laser Scanner Method for the Evaluation of Lower Limb Volumes in Normal-weight and Obese Subjects

Cited by 9 publications

References 8 publications

Measurements agreement between low-cost and high-level handheld 3D scanners to scan the knee for designing a 3D printed knee brace

Measurements agreement between low-cost and high-level handheld 3D scanners to scan the knee for designing a 3D printed knee brace

Digital Leg Volume Quantification: Precision Assessment of a Novel Workflow Based on Single Capture Three-dimensional Whole-Body Surface Imaging

Lower Limb Lymphedema

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