Accuracy and Reproducibility of Linear and Angular Measurements in Virtual Reality: a Validation Study.
The purpose of this experimental study is to validate linear and angular measurements acquired in a virtual reality (VR) environment via a comparison with the physical measurements. The hypotheses tested are as follows: VR linear and angular measurements (1) are equivalent to the corresponding physi...
| Publicado en: | Journal of Digital Imaging Vol. 33; no. 1; pp. 111 - 121 |
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| Autores principales: | , , , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Feb2020
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=142164518&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 142164518 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08971889 DOQ jtl: Journal of Digital Imaging issn: 08971889 maglogo: N pubinfo: dt: Feb2020 vid: 33 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 142164518 142164518 142164518 10.1007/s10278-019-00259-3 142164518 ppf: 111 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Accuracy and Reproducibility of Linear and Angular Measurements in Virtual Reality: a Validation Study. aug: au: Anik, Asif Ahmed Xavier, Brian A. Hansmann, Jan Ansong, Emmanuel Chen, Jinsong Zhao, Linping Michals, Edward affil: Department of Mechanical Industrial Engineering, University of Illinois at Chicago, 842 W. Taylor St., 60607, Chicago, IL, USA sug: subj: Anthropometry Methods Virtual Reality Reproducibility of Results Evaluation Validity Evaluation Human Validation Studies Intrarater Reliability Interrater Reliability Intraclass Correlation Coefficient Paired T-Tests Predictive Value of Tests ab: The purpose of this experimental study is to validate linear and angular measurements acquired in a virtual reality (VR) environment via a comparison with the physical measurements. The hypotheses tested are as follows: VR linear and angular measurements (1) are equivalent to the corresponding physical measurements and (2) achieve a high degree of reproducibility. Both virtual and physical measurements were performed by two raters in four different sessions. A total of 40 linear and 15 angular measurements were acquired from three physical objects (an L-block, a hand model, and a dry skull) via the use of fiducial markers on selected locations. After both intra- and inter-rater reliability were evaluated using inter-class coefficient (ICC), equivalence between virtual and physical measurements was analyzed via paired t test and Bland-Altman plots. The accuracy of the virtual measurements was further estimated using two one-sided tests (TOST) procedure. The reproducibility of virtual measurements was evaluated via ICC as well as the repeatability coefficient. Virtual reality measurements were equivalent to physical measurements as evidenced by a paired t test with p values of 0.413 for linear and 0.533 for angular measurements and Bland-Altman plots in all three objects. The accuracy of virtual measurements was estimated to be 0.5 mm for linear and 0.7° for angular measurements, respectively. Reproducibility in VR measurements was high as evidenced by ICC of 1.00 for linear and 0.99 for angular measurements, respectively. Both linear and angular measurements in the VR environment are equivalent to the physical measurements with high accuracy and reproducibility. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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