An eye tracking based virtual reality system for use inside magnetic resonance imaging systems

Abstract Patients undergoing Magnetic Resonance Imaging (MRI) often experience anxiety and sometimes distress prior to and during scanning. Here a full MRI compatible virtual reality (VR) system is described and tested with the aim of creating a radically different experience. Potential benefits cou...

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Autores principales:	Kun Qian, Tomoki Arichi, Anthony Price, Sofia Dall’Orso, Jonathan Eden, Yohan Noh, Kawal Rhode, Etienne Burdet, Mark Neil, A. David Edwards, Joseph V. Hajnal
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/48a1f3e6fa9b40e48c9dd62d9453a015
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spelling	oai:doaj.org-article:48a1f3e6fa9b40e48c9dd62d9453a0152021-12-02T15:07:54ZAn eye tracking based virtual reality system for use inside magnetic resonance imaging systems10.1038/s41598-021-95634-y2045-2322https://doaj.org/article/48a1f3e6fa9b40e48c9dd62d9453a0152021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95634-yhttps://doaj.org/toc/2045-2322Abstract Patients undergoing Magnetic Resonance Imaging (MRI) often experience anxiety and sometimes distress prior to and during scanning. Here a full MRI compatible virtual reality (VR) system is described and tested with the aim of creating a radically different experience. Potential benefits could accrue from the strong sense of immersion that can be created with VR, which could create sense experiences designed to avoid the perception of being enclosed and could also provide new modes of diversion and interaction that could make even lengthy MRI examinations much less challenging. Most current VR systems rely on head mounted displays combined with head motion tracking to achieve and maintain a visceral sense of a tangible virtual world, but this technology and approach encourages physical motion, which would be unacceptable and could be physically incompatible for MRI. The proposed VR system uses gaze tracking to control and interact with a virtual world. MRI compatible cameras are used to allow real time eye tracking and robust gaze tracking is achieved through an adaptive calibration strategy in which each successive VR interaction initiated by the subject updates the gaze estimation model. A dedicated VR framework has been developed including a rich virtual world and gaze-controlled game content. To aid in achieving immersive experiences physical sensations, including noise, vibration and proprioception associated with patient table movements, have been made congruent with the presented virtual scene. A live video link allows subject-carer interaction, projecting a supportive presence into the virtual world.Kun QianTomoki ArichiAnthony PriceSofia Dall’OrsoJonathan EdenYohan NohKawal RhodeEtienne BurdetMark NeilA. David EdwardsJoseph V. HajnalNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kun Qian Tomoki Arichi Anthony Price Sofia Dall’Orso Jonathan Eden Yohan Noh Kawal Rhode Etienne Burdet Mark Neil A. David Edwards Joseph V. Hajnal An eye tracking based virtual reality system for use inside magnetic resonance imaging systems
description	Abstract Patients undergoing Magnetic Resonance Imaging (MRI) often experience anxiety and sometimes distress prior to and during scanning. Here a full MRI compatible virtual reality (VR) system is described and tested with the aim of creating a radically different experience. Potential benefits could accrue from the strong sense of immersion that can be created with VR, which could create sense experiences designed to avoid the perception of being enclosed and could also provide new modes of diversion and interaction that could make even lengthy MRI examinations much less challenging. Most current VR systems rely on head mounted displays combined with head motion tracking to achieve and maintain a visceral sense of a tangible virtual world, but this technology and approach encourages physical motion, which would be unacceptable and could be physically incompatible for MRI. The proposed VR system uses gaze tracking to control and interact with a virtual world. MRI compatible cameras are used to allow real time eye tracking and robust gaze tracking is achieved through an adaptive calibration strategy in which each successive VR interaction initiated by the subject updates the gaze estimation model. A dedicated VR framework has been developed including a rich virtual world and gaze-controlled game content. To aid in achieving immersive experiences physical sensations, including noise, vibration and proprioception associated with patient table movements, have been made congruent with the presented virtual scene. A live video link allows subject-carer interaction, projecting a supportive presence into the virtual world.
format	article
author	Kun Qian Tomoki Arichi Anthony Price Sofia Dall’Orso Jonathan Eden Yohan Noh Kawal Rhode Etienne Burdet Mark Neil A. David Edwards Joseph V. Hajnal
author_facet	Kun Qian Tomoki Arichi Anthony Price Sofia Dall’Orso Jonathan Eden Yohan Noh Kawal Rhode Etienne Burdet Mark Neil A. David Edwards Joseph V. Hajnal
author_sort	Kun Qian
title	An eye tracking based virtual reality system for use inside magnetic resonance imaging systems
title_short	An eye tracking based virtual reality system for use inside magnetic resonance imaging systems
title_full	An eye tracking based virtual reality system for use inside magnetic resonance imaging systems
title_fullStr	An eye tracking based virtual reality system for use inside magnetic resonance imaging systems
title_full_unstemmed	An eye tracking based virtual reality system for use inside magnetic resonance imaging systems
title_sort	eye tracking based virtual reality system for use inside magnetic resonance imaging systems
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/48a1f3e6fa9b40e48c9dd62d9453a015
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An eye tracking based virtual reality system for use inside magnetic resonance imaging systems

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