Multi-Institutional Randomized Study to Evaluate a Holographic Display Device for Treatment Planning

Chu, James C.H.; Gong, Xiaojin; Cai, Can; Zusag, Thomas; Shott, Susan; Rivard, MJ; Melhus, Christopher S.; Cardarelli, Gene A.; Hurley, Amanda A.; Hepel, Jaroslaw T.

doi:10.1016/j.ijrobp.2007.07.2072

Cited by 3 publications

(4 citation statements)

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“…We note that the results had been presented at various medical conferences in 2006-7 13,14,15,16,26,27 . We also describe features and functionality of the first software application dedicated to the volumetric autostereoscopic analysis of radiotherapy treatment plans, PerspectaRAD.…”

Section: Contributionsmentioning

confidence: 93%

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Radiation therapy planning using a volumetric 3-D display: PerspectaRAD

Napoli¹,

Stutsman²,

Chu

et al. 2008

Stereoscopic Displays and Applications XIX

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We describe PerspectaRAD, the first tool for the review and modification of external-beam radiation therapy treatment plans with a volumetric three-dimensional display (Perspecta 1.9, Actuality Medical, Bedford, MA, USA) and a dedicated software application (PerspectaRAD, Actuality Medical). We summarize multi-institution retrospective studies that compare the system's efficacy to the incumbent 2-D display-based workflow. Contributions include: visualizing the treatment plan in a volumetric 3-D display, modifying the beam locations and performing point-and-click measurement in 3-D with a 3-D physical interface, and simultaneously viewing volumetric projections of the native CT data and isodose contours. The plans are synchronized with the hospital treatment planning system, Pinnacle 3 (Philips Medical, WI, USA). In the largest of five studies, 33 plans were retrospectively randomized and replanned at three institutions, including 12 brain, 10 lung, and 11 abdomen / pelvis. The PerspectaRAD plan was as good as or better than plans created without PerspectaRAD 70% of the time. Radiation overdose regions were more likely to be obvious inside the target volume than when reviewed in the 2-D display alone. However, the planning time was longer with PerspectaRAD. The data demonstrate that PerspectaRAD facilitates the use of non-coplanar beams and has significant potential to achieve better plan quality in radiation therapy.

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Section: Contributionsmentioning

confidence: 93%

“…The fifth study 26 increased the sample size to statistical significance. The study hypothesis was again that use of a volumetric display would lead to the production of better quality radiation therapy treatment plans.…”

Section: Clinical Studiesmentioning

confidence: 99%

Radiation therapy planning using a volumetric 3-D display: PerspectaRAD

Napoli¹,

Stutsman²,

Chu

et al. 2008

Stereoscopic Displays and Applications XIX

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“…The first system to integrate volumetric 3D visualisation with treatment planning in a true 3D planning system was described in three presentations. [8][9][10] The system combined two commercially available components: the Perspecta Volumetric display System (Actuality Systems, Bedford, MA, USA) and the Philips Pinnacle3 Treatment Planning System (Philips Medical Systems, Madison, WI, USA). The Perspecta volumetric display ( Figure 1) works by projecting a sequence of 2D images onto a swiftly rotating omnidirectional diffuser screen enclosed in a polycarbonate resin dome.…”

Section: An Immersive Vr Simulation Environment Rtstar (University Ofmentioning

confidence: 99%

An overview of augmented and virtual reality applications in radiotherapy and future developments enabled by modern tablet devices

2013

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Purpose: We review augmented (AR) and virtual reality (VR) applications in radiotherapy as found in the scientific literature and highlight future developments enabled by the use of small mass-produced devices and portability of techniques developed in other fields to radiotherapy.Analysis: The application of AR and VR within radiotherapy is still in its infancy, with the notable exception of training and teaching applications. The relatively high cost of equipment needed to generate a realistic 3D effect seems one factor that has slowed down its use, but also the sheer amount of image data is relatively recent, were radiotherapy professionals are only beginning to explore how to use this to its full potential. This increased availability of 3D data in radiotherapy will drive the application of AR and VR in radiotherapy to efficiently recognise and extract key features in the data to act on in clinical decision making. Conclusion:The development of small mass-produced tablet devices coming on the market will allow the user to interact with computer-generated information more easily, facilitating the application of AR and VR. The increased connectivity enabling virtual presence of remote multidisciplinary team meetings heralds significant changes to how radiotherapy professionals will work, to the benefit of our patients.

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“…An extended retrospective study with 33 patients (12 brain, 10 lung, 8 abdomen, and 3 pelvis) planned at three institutions reinforced the conclusion of the pilot study. (11) In addition, physician evaluations of plans using 3D visualization were more efficient because all plan information (target coverage, normal tissue sparing, and the locations of hot or cold spots) from all CT slices were available simultaneously. Both the pilot and the extended studies indicate that volumetric 3D planning is a valuable contributor to cancer treatment with radiation.…”

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confidence: 99%

Application of a 3D volumetric display for radiation therapy treatment planning I: quality assurance procedures

Gong

Kirk

Napoli

et al. 2009

J Applied Clin Med Phys

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To design and implement a set of quality assurance tests for an innovative 3D volumetric display for radiation treatment planning applications. A genuine 3D display (Perspecta Spatial 3D, Actuality‐Systems Inc., Bedford, MA) has been integrated with the Pinnacle TPS (Philips Medical Systems, Madison WI), for treatment planning. The Perspecta 3D display renders a 25 cm diameter volume that is viewable from any side, floating within a translucent dome. In addition to displaying all 3D data exported from Pinnacle, the system provides a 3D mouse to define beam angles and apertures and to measure distance. The focus of this work is the design and implementation of a quality assurance program for 3D displays and specific 3D planning issues as guided by AAPM Task Group Report 53. A series of acceptance and quality assurance tests have been designed to evaluate the accuracy of CT images, contours, beams, and dose distributions as displayed on Perspecta. Three‐dimensional matrices, rulers and phantoms with known spatial dimensions were used to check Perspecta's absolute spatial accuracy. In addition, a system of tests was designed to confirm Perspecta's ability to import and display Pinnacle data consistently. CT scans of phantoms were used to confirm beam field size, divergence, and gantry and couch angular accuracy as displayed on Perspecta. Beam angles were verified through Cartesian coordinate system measurements and by CT scans of phantoms rotated at known angles. Beams designed on Perspecta were exported to Pinnacle and checked for accuracy. Dose at sampled points were checked for consistency with Pinnacle and agreed within 1% or 1 mm. All data exported from Pinnacle to Perspecta was displayed consistently. The 3D spatial display of images, contours, and dose distributions were consistent with Pinnacle display. When measured by the 3D ruler, the distances between any two points calculated using Perspecta agreed with Pinnacle within the measurement errorPACS number: 07.07.Hj, 87.55.Qr, 87.56.Da, 87.55.D‐; Radiation Treatment Planning

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Multi-Institutional Randomized Study to Evaluate a Holographic Display Device for Treatment Planning

Cited by 3 publications

References 0 publications

Radiation therapy planning using a volumetric 3-D display: PerspectaRAD

Radiation therapy planning using a volumetric 3-D display: PerspectaRAD

An overview of augmented and virtual reality applications in radiotherapy and future developments enabled by modern tablet devices

Application of a 3D volumetric display for radiation therapy treatment planning I: quality assurance procedures

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