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. 2015 Mar 30;10(3):e0121520. doi: 10.1371/journal.pone.0121520

Table 2. Comparative assessment of T1 mapping at room air, pure O2 and perfusion.

Score = 0 n(%) Score = 1 n(%) Score = 2 n(%) Total n(%)
T1 23 (19%) 56 (47%) 41 (34%) 120 (100)
ΔT1 36 (30%) 43 (36%) 41 (34%) 120 (100)
Perfusion 21 (19%) 44 (41%) 43 (40%) 108 (100)

Severity of abnormal T1 at room air (T1), abnormal T1 reduction with 100% O2 (ΔT1) and perfusion alterations (Perfusion) in a per-zone approach. Note that perfusion imaging was rejected by 2 patients.