Abstract：
:Since discovery of high-temperature superconductive (HTS) ceramics by Bednorz and Muller in 1986, there has been an accelerated development of cold technologies in industry, including the domain of NMR detection. The purpose of this paper is to fix ideas about the stage that cryogenic radio frequency (RF) probe techniques have reached in biomedical magnetic resonance imaging (MRI). Readers confronted to the literature about this emerging topic have to understand a large range of motivations with somewhat unclearly defined technical limitations and actual outlets. An overview of sensitivity issues in the general context of biomedical MRI is provided here and the contribution of RF coil techniques to recent advances is identified. The domains where cooled coil materials such as copper, low- or high-temperature superconductors, could actually increase the RF coil sensitivity are delimited by a quantitative analysis of noise mechanisms. Technical keys, cryogenic means and cold RF coil technologies are considered, and first achievements in different fields of biomedical MRI are reviewed. This survey provides a basis for discussing about the future impact of cryogenic probes for MRI investigations.
journal_name
Biochimiejournal_title
Biochimieauthors
Darrasse L,Ginefri JCdoi
10.1016/j.biochi.2003.09.016keywords:
subject
Has Abstractpub_date
2003-09-01 00:00:00pages
915-37issue
9eissn
0300-9084issn
1638-6183pii
S0300908403001664journal_volume
85pub_type
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