. Author manuscript; available in PMC: 2012 Aug 1.

Published in final edited form as: J Magn Reson Imaging. 2011 Aug;34(2):468–473. doi: 10.1002/jmri.22623

Table 3.

Mean (and range) of T1, T2, and T2-corrected peak areas for Brown Adipose Tissue. The final column gives predicted areas for ndb = 2.7 and nmidb = 0.6 [% total fat]

Peak	In vivo ppm	Assignment	T1 (ms)	T2 (ms)	Measured Signal	Calculated Signal
1	5.3 ppm	-CH=CH-	-	-	-	0.098 [6.4 %]
1	5.3 ppm	-CH-O-CO-	-	-	-	0.098 [6.4 %]
Water	4.7 ppm	H₂O	618 (588–669)	21.1 (18.1–22.9)	1.605 (0.901–1.865)	-
2	4.2 ppm	-CH₂-O-CO-	-	-	-	0.060 [3.9 %]
3	2.75 ppm	-CH=CH-CH₂-CH=CH-	219 (154–294)	41.4 (32.3–48.7)	0.016 (0.012–0.020)	0.019 [1.2 %]
4	2.1 ppm	-CO-CH₂-CH₂-	189 (156–216)	55.3 (47.8–59.6)	0.216 (0.213–0.219)	0.218 [14.2 %]
4	2.1 ppm	-CH₂-CH=CH-CH₂-	247 (235–265)	55.3 (47.8–59.6)	0.216 (0.213–0.219)	0.218 [14.2 %]
5	1.3 ppm	-CO-CH₂-CH₂-	239 (227–265)	51.8 (46.7–55.1)	1.000	1.000 [65.3 %]
5	1.3 ppm	-(CH₂)_n-	278 (271–292)	51.8 (46.7–55.1)	1.000	1.000 [65.3 %]
6	0.9 ppm	-(CH₂)_n-CH₃	567 (544–591)	61.5 (50.9–71.3)	0.149 (0.138–0.164)	0.136 [8.9 %]