Further observations on the measurement of tissue T1 to monitor temperature in vivo by MRI.
Previous results for the measurement of T1 as a means of monitoring temperature have demonstrated a linear calibration with a coefficient of the order of 1.5%/degrees C. We have studied the changes in T1 further, and observe that changes in tissue perfusion are substantial contributors to the effects observed, and that the model of what is happening is complex and may not permit a simple temperature calibration.
Young
I R
IR
NMR Unit, Hammersmith Hospital, London, United Kingdom.
Hand
J W
JW
Oatridge
A
A
Prior
M V
MV
Forse
G R
GR
D001831:Body Temperature; D002138:Calibration; D006801:Humans; D008279:Magnetic Resonance Imaging; D008991:Monitoring, Physiologic / Q000379:methods*