Hearing Thresholds Changes after MRI 1.5T of Head and Neck

Table 1

Comparison of mean of hearing thresholds at different frequencies of both ears before MRI (baseline), 1 hour after MRI (TTS), and 24 hours after MRI (PTS).

Frequency (KHz)	Ear	Mean (SD) of Hearing thresholds (dB)			Comparison between baseline and 1 hr after MRI		Comparison between baseline and 24 hr after MRI
		Baseline	after MRI
			1 hr	24 hrs	Mean difference	P-value	Mean difference	P-value
0.5	Right	9.39 (2.07)	9.39 (2.07)	9.39 (2.07)	0	1	0	1
	Left	9.54 (1.92)	9.54 (1.92)	9.54 (1.92)	0	0.31	0	1
1	Right	10.90 (4.23)	11.06 (4.09)	11.06 (4.09)	0.97	0.31	0.16	0.31
	Left	10.15 (4.23)	10.30 (4.13)	10.30 (4.13)	0.30	1	0.15	0.31
2	Right	10.15 (4.4)	10.15 (4.1)	10.15 (4.1)	0.45	0.18	0	1
	Left	11.51 (5.51)	11.21 (5.59)	11.21 (5.59)	0.15	0.15	-0.30	0.31
3	Right	11.36 (4.55)	11.51 (4.41)	11.51 (4.41)	0.60	0.1	0.15	0.31
	Left	11.81 (7.37)	11.81 (7.37)	11.81 (7.37)	0.91	0.70	0	1
4	Right	11.36 (6.76)	11.51 (5.37)	11.51 (5.37)	1.06	0.008	0.15	0.73
	Left	13.03 (7.17)	13.18 (7.16)	13.18 (7.16)	1.06	0.08	0.15	0.31
6	Right	16.96 (7.8)	17.27 (7.71)	17.27 (7.71)	0.91	0.03	0.31	0.37
	Left	18.33 (7.14)	18.48 (7.44)	18.48 (7.44)	1.03	0.01	0.15	0.78
8	Right	16.06 (9.16)	16.21 (7.6)	16.21 (7.6)	1.06	0.19	0.15	0.48
	Left	17.12 (9.01)	17.27 (8.93)	17.27 (8.93)	0.75	0.04	0.15	0.31
10	Right	10.45 (12.7)	10.45 (12.7)	10.45 (12.7)	0	1	0	1
	Left	7.87 (13.23)	7.87 (13.23)	7.87 (13.23)	0.31	0.32	0	1
12	Right	15.45 (15.73)	15.30 (15.6)	15.30 (15.6)	0.45	0.18	-0.15	0.55
	Left	14.09(13.31)	14.24 (13.23)	14.24 (13.23)	0.60	0.32	0.13	0.31
14	Right	16.21 (19.72)	16.36 (19.77)	16.36 (19.77)	1.21	0.03	0.15	0.31
	Left	13.78 (18.49)	14.54 (13.23)	14.54 (13.23)	1.22	0.31	0.76	0.1
16	Right	29.09 (22.51)	29.09 (22.51)	29.09 (22.51)	0.30	0.31	0	1
	Left	26.96 (22.6)	27.12 (22.6)	27.12 (22.6)	0.46	0.1	0.16	0.31