| Zugriffsnummer | 38825 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Non-invasive estimation of temperature during physiotherapeutic ultrasound application using the average grey-level content of B-mode images: A metrological approach |
| Autor(in); Institution |
Alvarenga, André; National Institute of Metrology, Quality and Technology (INMETRO), Laboratory of Ultrasound, Directory of Scientific and Industrial Metrology (DIMCI), Rio de Janeiro, BRAZIL
Wilkens, Volker; 1.6, Schall, PTB-Braunschweig
Georg, Olga; 1.6, Schall, PTB-Braunschweig
Costa-Felix, Rodrigo P. B.; National Institute of Metrology, Quality and Technology (INMETRO), Laboratory of Ultrasound, Directory of Scientific and Industrial Metrology (DIMCI), Rio de Janeiro, BRAZIL
|
| Quelle/Jahr | Ultrasound in Medicine and Biology: 43 (2017), 9, 1938 - 1952 |
| ISSN | 0301-5629 (PRINT) ; 1879-291X (ONLINE) |
| DOI | |
| Verlag | Amsterdam [u.a.]: Elsevier |
| Klassifikationscode | PACS: 43.35.+d ; PACS: 43.80.+p ; PACS: 43.58.+z |
| Freie Schlagworte | Non-invasive temperature estimation ; Uncertainty ; B-Mode image ; Ultrasound ; Metrology |
| Zusammenfassung | Healing therapies that make use of ultrasound are based on raising the temperature in biological tissue. Invasive temperature measurement techniques are easy to use, despite the fact that they are detrimental to human wellbeing. Another approach to assessing a rise in tissue temperature is to derive the material's general response to temperature variations from ultrasonic parameters. In this paper, a method to evaluate temperature variations is described. The method is based on the analytical study of an ultrasonic image, in which grey-level variations are correlated to the temperature variations in a tissue-mimicking material. For a temperature variation of about 15 °C, the expanded uncertainty for a coverage probability of 0.95 was found to be 2.5 °C in the heating regime and 1.9 °C in the cooling regime. The model proposed in this paper can be used in a straightforward manner to monitor temperature variation during a physiotherapeutic ultrasound application, provided the tissue-mimicking material approach is transferred to actual biological tissue. The novelty of such an approach resides in the metrological based investigation outlined in this paper, as well as in its ease of reproducibility. |
Zitierung
Alvarenga, A., Wilkens, V., Georg, O., & Costa-Felix, R. P. B. (2017). Non-invasive estimation of temperature during physiotherapeutic ultrasound application using the average grey-level content of B-mode images: A metrological approach. Ultrasound in Medicine and Biology, 43(9), 1938–1952. https://doi.org/10.1016/j.ultrasmedbio.2017.04.008