Table 2.
Mean (and range) of T1, T2, and T2-corrected peak areas for White Adipose Tissue. The final column gives predicted areas for ndb = 3.3 and nmidb = 1.0 [% total fat]
Peak | In vivo ppm | Assignment | T1 (ms) | T2 (ms) | Measured Signal | Calculated Signal |
---|---|---|---|---|---|---|
1 | 5.3 ppm | -CH=CH- | 421 (406–436) | 44.1 (42.6–45.6) | 0.127 (0.109–0.145) | 0.122 [7.6 %] |
-CH-O-CO- | ||||||
Water | 4.7 ppm | H2O | 1053 (1005–1101) | 21.7 (17.3–26) | 0.124 (0.119–0.148) | - |
2 | 4.2 ppm | -CH2-O-CO- | 154 (145–163) | - | - | 0.064 [4.0 %] |
3 | 2.75 ppm | -CH=CH-CH2-CH=CH- | 284 (274–294) | 46.2 (44.5–47.9) | 0.027 (0.023–0.033) | 0.033 [2.1 %] |
4 | 2.1 ppm | -CO-CH2-CH2- | 202 (194–210) | 51.9 (51.8–52.1) | 0.238 (0.237–0.238) | 0.241 [15.0 %] |
-CH2-CH=CH-CH2- | 249 (238–259) | |||||
5 | 1.3 ppm | -CO-CH2-CH2- | 240 (214–264) | 54.7 (42.8–61.4) | 1.000 | 1.000 [62.4 %] |
-(CH2)n- | 280 (268–292) | |||||
6 | 0.9 ppm | -(CH2)n-CH3 | 543 (434–616) | 80.1 (50.7–110.2) | 0.147 (0.140–0.158) | 0.144 [9.0 %] |