A technique for fast and accurate measurement of hand volumes using Archimedes’ principle

Hughes, Stephen; Lau, Jaclyn

doi:10.1007/bf03178454

Cited by 21 publications

(15 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The weight and volume of breast tissue removed during mastectomy depends on the surgeon's technique and interpretation of breast boundaries, and is likely to be variable. Hughes and Lau [56] used water displacement to assess the volume of accurately machined cylinders of 168 and 336 ml. They found the error of measurement to be 6.50 and 6.00 ml (3.9 and 1.8%) respectively.…”

Section: Accuracy Gold Standardsmentioning

confidence: 99%

The accuracy of breast volume measurement methods: A systematic review

et al. 2016

View full text Add to dashboard Cite

Breast volume is a key metric in breast surgery and there are a number of different methods which measure it. However, a lack of knowledge regarding a method's accuracy and comparability has made it difficult to establish a clinical standard. We have performed a systematic review of the literature to examine the various techniques for measurement of breast volume and to assess their accuracy and usefulness in clinical practice. Each of the fifteen studies we identified had more than ten live participants and assessed volume measurement accuracy using a gold-standard based on the volume, or mass, of a mastectomy specimen. Many of the studies from this review report large (>200 ml) uncertainty in breast volume and many fail to assess measurement accuracy using appropriate statistical tools. Of the methods assessed, MRI scanning consistently demonstrated the highest accuracy with three studies reporting errors lower than 10% for small (250 ml), medium (500 ml) and large (1000 ml) breasts. However, as a high-cost, non-routine assessment other methods may be more appropriate.

show abstract

Section: Accuracy Gold Standardsmentioning

confidence: 99%

The accuracy of breast volume measurement methods: A systematic review

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The reference volume of the hand was computed by immersing the hands of different subjects (33 for the RealSense, 30 for the Kinect) in water using a graduated beaker according to the procedure described by [18]. The resolution of the graduated scale was 10 ml.…”

Section: Volumementioning

confidence: 99%

“…The hand volume has been measured by Hughes using Archimedes principle [18]: the technique involves the immersion of a hand in a water container placed on an electronic balance, with errors lower than 0.3 %. Mayrovits et al [19] proposed the estimation of the hand volume using geometric algorithms.…”

Section: Introductionmentioning

confidence: 99%

Automatic measurement of the hand dimensions using consumer 3D cameras

et al. 2020

View full text Add to dashboard Cite

<p class="Abstract">This article describes the metrological characterisation of two prototypes that use the point clouds acquired by consumer 3D cameras for the measurement of the human hand geometrical parameters. The initial part of the work is focused on the general description of algorithms that allow for the derivation of dimensional parameters of the hand. Algorithms were tested on data acquired using Microsoft Kinect v2 and Intel RealSense D400 series sensors. The accuracy of the proposed measurement methods has been evaluated in different tests aiming to identify bias errors deriving from point-cloud inaccuracy and at the identification of the effect of the hand pressure and the wrist flexion/extension. Results evidenced an accuracy better than 1 mm in the identification of the hand’s linear dimension and better than 20 cm<sup>3 </sup>for hand volume measurements. The relative uncertainty of linear dimensions, areas, and volumes was in the range of 1-10 %. Measurements performed with the Intel RealSense D400 were, on average, more repeatable than those performed with Microsoft Kinect. The uncertainty values limit the use of these devices to applications where the requested accuracy is larger than 5 % (volume measurements), 3 % (area measurements), and 1 mm (hands’ linear dimensions and thickness).</p>

show abstract

“…Se basa en el principio de Arquímedes, según el cual todo objeto introducido total o parcialmente en un fluido estático experimenta una fuerza de empuje igual al peso del fluido desplazado 56 . Así, el volumen del miembro se determina introduciendo el miembro y calculando la diferencia entre los niveles inicial y final del líquido.…”

Section: La Fórmula Del Cono Truncado Esunclassified

“…No se trata, en cualquier caso, de un método exento de inconvenientes (tabla 1). No es barato, requiere el cambio de agua entre pacientes y no puede aplicarse cuando hay heridas abiertas 33,56 . No existe consenso en cuanto al nivel al que debe sumergirse el miembro y aunque lo hubiera, es difícil asegurar que la inmersión se realice hasta el punto deseado 6 .…”

Section: La Fórmula Del Cono Truncado Esunclassified