High field MR carotid vessel wall imaging: reproducibility of five different MR-weightings

Table 2

a- Scan-Rescan Reproducibility for the Common Carotid Artery
	Lumen Area (mm2)					Vessel Wall area (mm2)
	R	mean	p	SD	COV (%)	R	mean	p	SD	COV (%)
T1-TFE	0.97	-1.15	0.42	2.91	8%	0.86	1.41	0.01	0.74	3%
T2	0.95	2.03	0.18	2.82	8%	0.96	-1.19	0.20	1.72	7%
PD	0.89	2.75	0.06	2.28	7.5%	0.55	-0.25	0.85	2.82	12%
T1-TSE	0.90	-0.12	0.94	3.45	10%	0.85	-1.70	0.13	2.03	9%
TOF	0.97	0.74	0.43	1.89	5%
b- Separate analysis of the MR-weightings compared to combined contrast weighted protocal
	Lumen Area (mm2)					Vessel Wall area (mm2)
	R	mean	p	SD	COV (%)	R	mean	p	SD	COV (%)
T1-TFE	0.97	0.57	0.52	1.80	5%	0.90	-0.60	0.18	0.83	3.5%
T2	0.38	-0.76	0.85	8.32	24%	0.52	-1.02	0.42	2.54	11%
PD	0.81	-2.71	0.24	4.39	13%	0.07	-0.50	0.75	3.31	14%
T1-TSE	0.78	-0.69	0.75	4.63	13%	0.64	-2.25	0.15	2.87	13%
TOF	0.84	3.08	0.15	3.88	10%

R. Pearson’s correlation coefficient; P p-value of T-test; SD. Standard deviation; COV. Coefficient of variation

ISSN: 1532-429X