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|Title:||MRI-compatible breast/rib phantom for evaluating ultrasonic thermal exposures||Authors:||Menikou, Georgios
Damianou, Christakis A.
|Keywords:||Breast;Cancer;MRI;Rib;Ultrasound||Category:||Clinical Medicine||Field:||Medical and Health Sciences||Issue Date:||Feb-2018||Publisher:||John Wiley and Sons Ltd||Source:||International Journal of Medical Robotics and Computer Assisted Surgery, 2018, vol.14, no. 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:||© 2017 John Wiley & Sons||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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