Flat panel CT versus multidetector CT in skull base imaging: are there differences in image quality?

Head & Face Medicine

Table 1 Detectability of skull base anatomy. Mean values, standard deviation. Statistical results of Dunn All Pairs Test for Joint Ranks (p < 0.05)

	FPCT 20s	FPCT 10s	MDCT S128	FPCT 20s / FPCT 10s	FPCT 20s / MDCT	FPCT 10s/ MDCT
Anterior ethmoidal canals	2.95 (0.15)	2.9 (0.20)	2.4 (0.46)	1.0	< 0.0001*	0.0003*
Posterior ethmoidal canals	2.9 (0.30)	2.7 (0.44)	2.0 (0.67)	0.9	< 0.0001*	0.0008*
Lamina cribrosa	3.0 (0.0)	2.5 (0.49)	2.0 (0.11)	0.0039*	< 0.0001*	0.0070*
Pterygoid canal	2.98 (0.11)	2.85 (0.33)	2.35 (0.56)	1.0	0.0001*	0.0055*
Palatovaginal canal	2.78 (0.41)	2.08 (0.52)	1.33 (0.65)	0.0051*	< 0.0001*	0.0173*
Meningoorbital foramen (incons.)	2.75 (0.42)	2.67 (0.52)	2.3 (0.76)	1.0	0.6195	0.8774
Foramen rotundum	3.0 (0.0)	3.0 (0.0)	2.55 (0.48)	1.0	< 0.001*	< 0.001*
Foramen ovale	3.0 (0.0)	2.88 (0.32)	2.5 (0.49)	0.8640	0.0001*	0.0082*
Foramen venosum (vesalii) (incons.)	2.96 (0.14)	2.42 (0.49)	1.58 (0.49)	0.0750	< 0.001*	0.0131*
Foramen spinosum	3.0 (0.0)	2.52 (0.50)	2.0 (0.49)	0.0126*	< 0.0001*	0.0159*
Sulcus of major petrosal nerve	2.93 (0.24)	2.5 (0.49)	1.83 (0.67)	0.0424*	< 0.0001*	0.0092*
Craniopharyngeal canal (incons.)	2.0 (0.0)	2.0 (0.0)	1.0 (0.0)	1.0	1.0	1.0
Hypoglossal canal	3.0 (0.0)	3.0 (0.0)	3.0 (0.0)	1.0	1.0	1.0
Jugular foramen	3.0 (0.0)	2.86 (0.32)	2.85 (0.33)	0.4308	0.1655	1.0
Inferior tympanic canaliculus (incons.)	3.0 (0.0)	2.38 (0.48)	1.5 (0.58)	0.5310	0.0151*	0.5310
Mastoid canaliculus (incons.)	3.0 (0.0)	2.0 (0.0)	2.0 (0.0)	1.0	1.0	1.0
Petromastoideal canal	2.6 (0.50)	2.25 (0.47)	1.6 (0.50)	0.2053	< 0.0001*	0.0073*
Nerve canal N7	2.88 (0.32)	2.78 (0.41)	2.35 (0.49)	1.0	0.0015*	0.0154*

ISSN: 1746-160X