Table 2:

Signal intensity comparison of PETRA and IR-FSPGR sequences as previously reported^{^a}

	Default PETRA	4-Minute PETRA	IR-FSPGR (from Dehkharghani et al¹)	P Value (4-Minute PETRA vs IR-FSPGR)
Cisternal	1.89 (0.31)	2.00 (0.00)	0.86 (0.42)	<.001
Canalicular	1.86 (0.36)	2.00 (0.00)	0.83 (0.44)	<.001
Labyrinthine	1.79 (0.42)	1.85 (0.37)	0.88 (0.39)	<.001
Geniculate	2.00 (0.00)	2.00 (0.00)	1.03 (0.22)	<.001
Tympanic	1.96 (0.19)	2.00 (0.00)	0.95 (0.32)	<.001
Superficial Petrosal	2.00 (0.00)	2.00 (0.00)	0.96 (0.30)	<.001
Mastoid	2.00 (0.00)	2.00 (0.00)	1.01 (0.30)	<.001

↵a To allow direct comparison with the data published by Dehkharghani et al,¹ except for the P values, we report data as mean (SD) of assigned signal intensity, in which each facial nerve segment was assigned a value of 0–2 (0, no detectable signal; 1, faint visualization; 2, signal equivalent to normal brain).