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. Author manuscript; available in PMC: 2017 Mar 30.

Published in final edited form as: Tomography. 2016 Sep;2(3):188–196. doi: 10.18383/j.tom.2016.00145

Table 3.

Paired TISA Difference for 3 Registration Methods and Time Intervals

	m_conventional−m_robust			m_unregistered−m_robust
	Mean	SD	CI (95 %)	Mean	SD	CI (95 %)
Pre-contrast (τ<−1.5)	0.0046	0.0168	[0.0034, 0.0057]	0.0087	0.0087	[0.0081, 0.0093]
Early contrast (−1.5<τ<0)	0.0030	0.0140	[0.0020, 0.0041]	0.0043	0.0061	[0.0038, 0.0048]
Whole time interval	0.0022	0.0109	[0.0018, 0.0026]	0.0058	0.0076	[0.0056, 0.0061]

Abbreviations: TISA, time-normalized, intensity-normalized spike area; SD, standard deviation; CI, confidence interval.