Simon Auguste Lambert1, Marie Poirier-Quinot1, Ludovic De Rochefort2, Jean-christophe Ginefri2, Luc Darrasse1
1UMR 8081, IR4M, Univ Paris Sud, CNRS,, Orsay, Paris, France; 2UMR 8081, IR4M, Univ Paris-Sud, Orsay, Paris, France
For field strengths of 4.7 T and above, cryocooled probes based on normal coil conductors at 30 K have been commercially developed and afford SNR gain factors of 2-4. Only few studies relate sensitivity improvement using superconducting coil above 3 T. A particularly challenging issue with HTS coils for in vivo applications at high field is the design of sub-centimeter coils in order to achieve SNR gains overcoming the limits of normal conducting cryocooled probes. This is the first report of in vivo imaging using a subcentimeter cryocooled HTS 6 mm mean diameter surface coil at 4.7 T.