Schneebeli, Alessandro and Cescon, Corrado and Del Grande, Filippo and Vincenzo, Gabriele and Biordi, Fulvio and Barbero, Marco (2014) Real-time elastography using an external reference material: preliminary results of achilles tendon elasticity pattern. In: Proceedings of the XX Congress of the International Society of Electrophysiology and Kinesiology, 14-18 July 2014, Rome, Italy.
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Abstract
AIM: The aim of this study was to describe elasticity pattern of normal Achilles tendon using real-time elastography (RTE) with an external reference material. METHODS: Six healthy subjects were recruited. Longitudinal RTE ultrasound (MyLab™ ClassC) images of left and right Achilles tendon were acquired. An external reference material (Zerdine®, CIRS, Inc., Norfolk), with known elastic properties (first layer 93 kPa, second layer 10.5 kPa), was placed on the subject’s tendon and included in the b-mode scans (Fig. 1). The reference material was used to normalize colour scale among subjects. Two region of interest (ROI) were drawn in the reference material and in the tendon. The range between soft and hard (from red to blue) was divided in 256 steps (0-255), according to the ultrasound image colour depth. The median and interquartile range of the distribution color were computed. Index ratio between the reference material and the tendon median values were calculated. RESULTS: The mean ± (SD) color index for the tendon was 199 ± (8.42) and for the reference material (93kPa) was 79 ± (9.64). The color index ratio between reference and tendon was 0.397 ± (0.04). CONCLUSION: Preliminary results show that healthy subject have similar color index ratios for the Achilles tendon. Color index ratios of pathological Achilles tendon should be investigated in future research.
| Item Type: | Article in conference proceedings or Presentation at a conference (Speech) |
|---|---|
| Subjects: | Engineering > General engineering > Bioengineering, biomedical engineering & clinical engineering |
| Department/unit: | Dipartimento economia aziendale, sanità e sociale > Laboratorio di ricerca in riabilitazione |
| Depositing User: | Corrado Cescon |
| Date Deposited: | 07 Jul 2014 05:34 |
| Last Modified: | 14 May 2021 11:00 |
| URI: | http://repository.supsi.ch/id/eprint/4711 |
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