作者单位:Fdn Santa Lucia, Rome, Italy[1]Univ Roma Tor Vergata, Dept Diagnost Imaging, I-00133 Rome, Italy[2]Univ Roma Tor Vergata, Neurol Unit, Dept Syst Med, I-00133 Rome, Italy[3]Univ Roma Tor Vergata, Dept Syst Med, Neurophysiopathol Unit, Sleep Med Ctr, I-00133 Rome, Italy[4]