Simone Ambrogio, Raphaela de Melo Baêsso, Alberto Gomis, Ian Rivens, Gail Ter Haar, Bajram Zeqiri, Kumar V Ramnarine, Fiammetta Fedele, Piero Miloro
Temperature estimation is a fundamental step in assessment of the efficacy of thermal therapy. A thermochromic material sensitive within the temperature range 52.5°C-75°C has been developed. The material is based on polyvinyl alcohol cryogel with the addition of a commercial thermochromic ink. It is simple to manufacture, low cost, non-toxic and versatile. The thermal response of the material was evaluated using multiple methods, including immersion in a temperature-controlled water bath, a temperature-controlled heated needle and high-intensity focused ultrasound (HIFU) sonication...
November 2020: Ultrasound in Medicine & Biology