spin 805The spin echo sequence is a fundamental pulse sequence in MRI. Many of 's applications in routine clinical use are based on this elementary sequence. In this review article, the principles4e série, t. 36, 2003, p. 805 à 845. Spinc-QUANTIZATION AND THEK-MULTIPLICITIES OF THE DISCRETE SERIES BY PAUL-ÉMILE PARADAN ABSTRACT. – In the 70s, W. Schmid