Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/10973
Title: MRI-compatible breast/rib phantom for evaluating ultrasonic thermal exposures
Authors: Menikou, Georgios 
Yiannakou, Marinos 
Yiallouras, Christos 
Ioannides, Cleanthis 
Damianou, Christakis A. 
Major Field of Science: Medical and Health Sciences
Field Category: Clinical Medicine
Keywords: Breast;Cancer;MRI;Rib;Ultrasound
Issue Date: Feb-2018
Source: International Journal of Medical Robotics and Computer Assisted Surgery, 2018, vol. 14, no. 1
Volume: 14
Issue: 1
Journal: The International Journal of Medical Robotics and Computer Assisted Surgery 
Abstract: Introduction: The target of this study was the development of a magnetic resonance imaging (MRI) compatible breast phantom for focused ultrasound which includes plastic (ABS) ribs. The objective of the current study was the evaluation of a focused ultrasound procedure using the proposed phantom that eliminates rib heating. Material and Methods: The proposed phantom was evaluated using two different focused ultrasound exposures. The surrounding breast tissue was mimicked using an agar–silica–evaporation milk gel (2% w/v – 2% w/v – 40% v/v). Results: The attenuation of the ABS was similar to that of ribs. MR thermometry of focused ultrasound exposures were acquired using the breast/rib phantom. In one exposure focused ultrasound was applied with far-field targeting of the ribs. In the other exposure, the transducer was positioned laterally, thus avoiding exposure of the rib to focused ultrasound. Conclusions: Due to growing interest in using MRI guided focused ultrasound (MRgFUS) for patients with breast cancer, the proposed breast/rib phantom can be utilized as a very useful tool for evaluating ultrasonic protocols.
ISSN: 1478-5951
DOI: 10.1002/rcs.1849
Rights: © Wiley
Type: Article
Affiliation : City University 
Cyprus University of Technology 
Medsonic Ltd 
Ygia Polyclinic Private Hospital 
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