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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Magn Reson Imaging. 2011 Sep 9;29(9):1186–1194. doi: 10.1016/j.mri.2011.07.011

Table 1. Experimental design of the breathing conditions employed during scanning.

Condition Name Tidal Volume Respiratory Rate (min−1) Length (min) Condition Description
FREE1 - - 1 Free breathing
NORMAL 1 1x 15 1 Paced normal breathing
RAPID1 1x 24 1 Paced rapid breathing
DEEP1 2x 12 1 Paced deep breathing
RAPID&DEEP 2x 25 1 Paced rapid and deep breathing
DEEP2 2x 12 1 Paced deep breathing
RAPID2 1x 24 1 Paced rapid breathing
NORMAL2 1x 15 1 Paced normal breathing
FREE2 - - 2.5 Free breathing