Fig. 7

T2* imaging to assess myocardial iron overload. a T2* scan of a normal heart showing slow signal loss with increasing TE. b Decay curve for normal heart. T2* = 33.3 ms. c Heavily iron overloaded heart. Note there is substantial signal loss at TE = 9.09. d Decay curve for heavily iron overloaded heart showing rapid signal loss with increasing TE. The curve plateaus as myocardial SI falls below background noise. e Values for higher TEs are removed (truncation method) resulting in a better curve fit and a lower T2* value