. Author manuscript; available in PMC: 2016 Jan 31.

Published in final edited form as: Clin Radiol. 2014 Nov 27;70(2):146–152. doi: 10.1016/j.crad.2014.10.009

Table 4.

Unadjusted AUC values of individual vertebral levels and L1–L5 (average) for anterior-posterior (AP) dural sac diameter (DSD) and transverse (TR) DSD, and dural sac ratio (DSR) for determining Marfan diagnosis (reader 1).

	L1	L2	L3	L4	L5	L1–L5 (average)
AP-DSD	0.68	0.8	0.85	0.81	0.86	0.86^a
TR-DSD	0.71	0.74	0.79	0.82	0.86	0.84^b
DSR	0.56	0.67	0.74	0.69	0.79	0.73

No significant difference between AUC values of L1–L5 (average) AP-DSD and TR-DSD (p = 0.51).

p < 0.01 as compared to DSR.

p = 0.04 as compared to DSR.