Augmented-reality visualization for improved patient positioning workflow during MR-HIFU therapy

Francesca Manni; Cyril J. Ferrer; Celine E. C. Vincent; Marco Lai; Lambertus W. Bartels; Clemens Bos; Fons van der Sommen; Peter H. N. de With

doi:10.1117/12.2580838

15 February 2021 Augmented-reality visualization for improved patient positioning workflow during MR-HIFU therapy

Francesca Manni, Cyril J. Ferrer, Celine E. C. Vincent, Marco Lai, Lambertus W. Bartels, Clemens Bos, Fons van der Sommen, Peter H. N. de With

Author Affiliations +

Proceedings Volume 11598, Medical Imaging 2021: Image-Guided Procedures, Robotic Interventions, and Modeling; 115982C (2021) https://doi.org/10.1117/12.2580838
Event: SPIE Medical Imaging, 2021, Online Only

Conference Poster

Abstract

MR-guided high-intensity focused ultrasound (MR-HIFU) is a non-invasive therapeutic technology which has demonstrated clinical potential for tissue ablation. The application of this therapeutic approach facilitated to be a promising option to achieve faster pain palliation in patients with bone metastasis. However, its clinical adoption is still hampered by a lack of workflow integration. Currently, to ensure sufficient positioning, MR images have to be repeatedly acquired in between patient re-positioning tasks, leading to a time-consuming preparation phase of at least 30 minutes, involving extra costs and time to the available treatment time. Augmented reality (AR) is a promising technology that enables the fusion of medical images, such as MRI, with the view of an external camera. AR represents a valid tool for a faster localization and visualization of the lesion during positioning. The aim of this work is the implementation of a novel AR setup for accelerating the patient positioning during MRHIFU treatments by enabling adequate target positioning outside the MRI scanner. A marker-based approach was investigated for fusing the MR data with video data for providing an augmented view. Initial experiments on four volunteers show that MR images were overlaid on the camera views with an average re-projection error of 3.13 mm, which matches the clinical requirements for this specific application. It can be concluded that the implemented system is suitable for MR-HIFU procedures and supports its clinical adoption by improving the patient positioning, thereby offering potential for faster treatment time.

Conference Presentation

Citation Download Citation

Francesca Manni, Cyril J. Ferrer, Celine E. C. Vincent, Marco Lai, Lambertus W. Bartels, Clemens Bos, Fons van der Sommen, and Peter H. N. de With "Augmented-reality visualization for improved patient positioning workflow during MR-HIFU therapy", Proc. SPIE 11598, Medical Imaging 2021: Image-Guided Procedures, Robotic Interventions, and Modeling, 115982C (15 February 2021); https://doi.org/10.1117/12.2580838

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available