. Author manuscript; available in PMC: 2013 Nov 1.

Published in final edited form as: J Magn Reson Imaging. 2012 Jul 10;36(5):1113–1123. doi: 10.1002/jmri.23748

Table 1.

Relaxation times (ms) reported in Breast MRS studies

Sample	Reference	T₂ Cho [ms]	T₂ H₂O [ms]	T₁ Cho [ms]	T₁H₂O [ms]	Field Strength [T]	tCho Concentration
Cancer Patients	Bolan 2003	399	60		870	4	1.38–10 mmol/kg
	Baik 2006, 2008	269 ± 61	97 ± 10	1513 ± 156	746 ± 118	1.5	0.76–21.20 mmol/kg
	Sijens 2010	305^†	97	1513	746	1.5	2.8 & 3.4 mM
	Bakken 2001	340				1.5
Healthy Controls	Rakow-Penner 2006		57.51		1136, 1266^*	1.5
	Rakow-Penner 2006		54.36		1324, 1445^*	3
	Graham 1997 ^Δ		40		1301	1.5
	Sijens 2010	311	49^◊	1240	1317	1.5	0.3 & 0.6 mM
Phantom	Baik 2006	485–664	1122–1282	2301–2415	2574–2619	1.5

^†

Average value based on Baik 2006 and Bakken 2011.

Values measured using two techniques.

^Δ

Values measured in ex vivo breast tissue.

^◊

Average value based on Graham 1997 and Penner 2006.