Abstract
Objective To investigate the feasibility and clinical value of ultrasound elastography in assessment of sternocleidomastoid fibrosis in patients after radiotherapy for nasopharyngeal carcinoma. Methods Forty-five patients with nasopharyngeal carcinoma after radiotherapy (study group) and 52 healthy volunteers (control group) underwent ultrasound elastography.Bilateral sternocleidomastoid elasticity score, thickness, width, resistance index(RI), and pulsatility index(PI) were analyzed and compared. Results The sternocleidomastoid elastography in study group was mainly blue, and that in control group was mainly green. The difference of sternocleidomastoid elasticity score, width, and thickness was significant between study group and control group (P 0.05). Conclusions Ultrasound elastography could be effectively and noninvasively used for evaluating the sternocleidomastoid fibrosis in patients after radiotherapy for nasopharyngeal carcinoma. It has a potential clinical value in the grading and classification of fibrosis. Key words: Elasticity imaging techniques; Nasopharyngeal neoplasms; Radiotherapy-related complications; Sternocleidomastoid fibrosis
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