Temperature-Sensitive MR Sequences

  • R. Botnar
Part of the Medical Radiology book series (MEDRAD)

Abstract

Minimally invasive surgical interventions such as interstitial laser thermotherapy (LITT) or radio-frequency (RF) thermotherapy allow treatment of deep-seated tumors in the human body. Compared to conventional surgical interventions, these techniques may help to reduce health care costs and shorten patient recovery times. In order to guarantee safe treatment, temperature dissipation must be monitored in the target tissue. MR thermometry allows noninvasive monitoring of interventional thermal procedures inside the human body with high spatial and temporal resolution. Several temperature-dependent MR parameters such as the spin-lattice relaxation time T1 (Parker et al. 1983; Jolesz et al. 1988; Cline et al. 1994), the molecular diffusion coefficient (LeBihan et al. 1989; Bleier et al. 1991), or the proton frequency shift (Hall et al. 1985; de Poorter et al. 1995; Ishihara et al. 1995) can be exploited for the purpose of temperature mapping.

Keywords

Attenuation Agarose Reso Phan Lewin 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • R. Botnar
    • 1
  1. 1.MR Center, Institute of Diagnostic RadiologyZurich University HospitalZurichSwitzerland

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