Hearing Assessment after Treatment of Nasopharyngeal Carcinoma with CRT and IMRT Techniques

Figure 1

Audiogram of the hearing threshold of all patients before radiotherapy or chemoradiotherapy and after follow-up for 1 to 9 years (◆, ■, ▲, x, ,  ., +, and −, resp.). (a) Without and (b) after adjusting for age-related threshold deterioration (Mean ± SEM).

(a)

(b)