Insights into Imaging

Table 1 Clinical computed tomography (CT) and magnetic resonance imaging (MRI) protocols used in the current review

From: Tracking the glossopharyngeal nerve pathway through anatomical references in cross-sectional imaging techniques: a pictorial review

CT protocol		Acquisition	Detector coverage	Pitch	Table speed	Rotation time	Kv	mA max	ASIR	Matrix	FOV
Skull base		Spiral	20 cm	0.531:1	10.62 cm/s	1 s	120	600	40%	512	25 cm
Cranial		Spiral	20 cm	0.531:1	10.62 cm/s	0.8 s	120	280	40%	512	25 cm
Neck		Spiral	20 cm	0.531:1	10.62 cm/s	0.8 s	120	280	40%	512	25 cm
MRI protocol	Sequence	TR	TE	TI	ET	BW	Matrix	FOV	ST	SP	NEX
Brain	T2W axial	5600 ms	100 ms	–	22	41.67 KHz	512 × 384	26 cm	5 mm	1 mm	2
	T2W coronal	4400 ms	102 ms	–	22	50 KHz	256 × 256	24 cm	5 mm	1 mm	2
	T2W coronal	2800 ms	102 ms	–	22	41.67 KHz	320 × 256	24 cm	3 mm	0 mm	2
Cervical	T1W sagittal	3000 ms	22 ms	Auto	9	41.67 MHz	384 × 224	26 cm	3 mm	0 mm	2
Neck	T1W axial	475 ms	10 ms	–	3	20.83 KHz	256 × 256	18 cm	4 mm	1 mm	2
	T2W axial	4200 ms	85 ms	–	13	15.63 MHz	256 × 256	18 cm	4 mm	1 mm	3
	T1W coronal	350 ms	7 ms	–	3	31.25 MHz	256 × 192	18 cm	4 mm	1 mm	1

Kv kilovoltage; mA max maximum milliamperage; ASIR adaptive statistical iterative reconstruction; FOV field of view; TR time of repetition; TE time of echo; TI time of inversion; ET echo train; BW bandwidth; ST slice thickness; SP spacing; NEX number of excitations

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