RF heating reduction associated to an MR endoluminal coil at 3T

J. Verret (1) , F. Pilleul (1) , C. Rabrait (2) , O. Beuf (1)

1 RMN et optique : De la mesure au biomarqueur
2 Clinical Science Development Group

Purpose/Introduction: MR endoluminal coils increase the Signal-to-Noise Ratio (SNR), allowing better distinction of the layers of the bowel: a crucial criterion for diagnosis of bowel diseases [1]. But they present a risk of burn for the patient. Radio Frequency (RF) electric field may cause important heating due to local concentrations of the E-field along the conductive cable and coil [2]. In this paper, the efficiency of RF traps toward heating suppression was assessed. The particular case of a 225 cm long receiver cable was with a cable path configuration tested to be in the worst case scenario.

Domaines: Traitement du signal et de l'image [eess.SP]

J. Verret, F. Pilleul, C. Rabrait, O. Beuf. RF heating reduction associated to an MR endoluminal coil at 3T. ESMRMB 2012, 29th Annual Scientific Meeting, Oct 2012, Lisbon, Portugal. pp.143, ⟨10.1007/s10334-012-0322-y⟩. ⟨hal-00839144⟩