Non-invasive temperature mapping using MRI:: Comparison of two methods based on chemical shift and T1-relaxation

被引:68
作者
Bertsch, F [1 ]
Mattner, J [1 ]
Stehling, MK [1 ]
Müller-Lisse, U [1 ]
Peller, M [1 ]
Loeffler, R [1 ]
Weber, J [1 ]
Messmer, K [1 ]
Wilmanns, W [1 ]
Issels, R [1 ]
Reiser, M [1 ]
机构
[1] Univ Munich, Inst Radiol Diagnost, Munich, Germany
关键词
MRI; thermometry; T-1; chemical shift;
D O I
10.1016/S0730-725X(97)00311-1
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Purpose: To implement and evaluate the accuracy of non-invasive temperature mapping using MRI methods based on the chemical shift (CS) and T-1 relaxation in media of various heterogeneity during focal (laser) and external thermal energy deposition. Materials and Methods: All measurements mere performed on a 1.5 T superconducting clinical scanner using the temperature dependence of the water proton chemical shift and the T-1 relaxation time, Homogeneous gel and heterogeneous muscle phantoms were heated focally with a fiberoptic laser probe and externally of varying degree ex vivo by water circulating in a temperature range of 20-50 degrees C. Magnetic resonance imaging data were compared to simultaneously recorded fiberoptic temperature readings. Results: Both methods provided accurate results in homogeneous media (turkey) with better accuracy for the chemical shift method (CS: +/-1.5 degrees C, T-1: +/-2.0 degrees C:). Ln gel, the accuracy with the CS method was +/-0.6 degrees C. The accuracy decreased in heterogeneous media containing fat (T-1: +/-3.5 degrees C, CS: +5 degrees C). In focal heating of turkey muscle, the accuracy was within 1.5 degrees C with the T-1 method. Conclusion: Temperature monitoring with the chemical shift provides better results in homogeneous media containing no fat, In fat tissue, the temperature calculation proved to be difficult. (C) 1998 Elsevier Science Inc.
引用
收藏
页码:393 / 403
页数:11
相关论文
共 40 条
[21]   MONITORING OF LASER AND FREEZING-INDUCED ABLATION IN THE LIVER WITH T1-WEIGHTED MR IMAGING [J].
MATSUMOTO, R ;
OSHIO, K ;
JOLESZ, FA .
JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING, 1992, 2 (05) :555-562
[22]   SIMULTANEOUS TEMPERATURE AND REGIONAL BLOOD-VOLUME MEASUREMENTS IN HUMAN MUSCLE USING AN MRI FAST DIFFUSION TECHNIQUE [J].
MORVAN, D ;
LEROYWILLIG, A ;
MALGOUYRES, A ;
CUENOD, CA ;
JEHENSON, P ;
SYROTA, A .
MAGNETIC RESONANCE IN MEDICINE, 1993, 29 (03) :371-377
[23]   TEMPERATURE-DEPENDENCE AND PH-DEPENDENCE OF PROTON RELAXATION RATES IN RAT-LIVER TISSUE [J].
MOSER, E ;
WINKLMAYR, E ;
HOLZMULLER, P ;
KRSSAK, M .
MAGNETIC RESONANCE IMAGING, 1995, 13 (03) :429-440
[24]   TEMPERATURE-DEPENDENCE OF PROTON RELAXATION-TIMES INVITRO [J].
NELSON, TR ;
TUNG, SM .
MAGNETIC RESONANCE IMAGING, 1987, 5 (03) :189-199
[25]  
ORDIDGE RJ, 1990, MAGNET RESON MED, V16, P228
[26]   TEMPERATURE DISTRIBUTION MEASUREMENTS IN TWO-DIMENSIONAL NMR IMAGING [J].
PARKER, DL ;
SMITH, V ;
SHELDON, P ;
CROOKS, LE ;
FUSSELL, L .
MEDICAL PHYSICS, 1983, 10 (03) :321-325
[27]  
Prapavat V, 1996, LASER SURG MED, V18, P22, DOI 10.1002/(SICI)1096-9101(1996)18:1<22::AID-LSM3>3.0.CO
[28]  
2-T
[29]   NONINVASIVE THERMOMETRY USING MAGNETIC-RESONANCE DIFFUSION IMAGING - POTENTIAL FOR APPLICATION IN HYPERTHERMIC ONCOLOGY [J].
SAMULSKI, TV ;
MACFALL, J ;
ZHANG, Y ;
GRANT, W ;
CHARLES, C .
INTERNATIONAL JOURNAL OF HYPERTHERMIA, 1992, 8 (06) :819-829
[30]   MAGNETIC-RESONANCE-IMAGING OF MICROWAVE-INDUCED TISSUE HEATING [J].
SCHWARZMAIER, HJ ;
KAHN, T .
MAGNETIC RESONANCE IN MEDICINE, 1995, 33 (05) :729-731