Parallel transmission RF pulse design with strict temperature constraints

• Published in: NMR in biomedicine Vol. 30; no. 5; pp. np - n/a
• Main Authors: Deniz, Cem M., Carluccio, Giuseppe, Collins, Christopher
• Format: Journal Article
• Language: English
• Published: England Wiley Subscription Services, Inc 01.05.2017
• Subjects: Body Temperature - physiology; Brain - physiology; Brain - radiation effects; Computer Simulation; Computer-Aided Design; Dose-Response Relationship, Radiation; Equipment Design; Equipment Failure Analysis; Equipment Safety; Humans; Magnetic Fields; Magnetic Resonance Imaging - instrumentation; Models, Neurological; parallel transmission; Patient Safety; Phantoms, Imaging; Radiation Dosage; Radio Waves; RF pulse design; Signal Processing, Computer-Assisted - instrumentation; temperature constraints; temperature correlation matrices; Thermography - instrumentation; Transducers; RF pulse design; parallel transmission; temperature correlation matrices; temperature constraints

RF safety in parallel transmission (pTx) is generally ensured by imposing specific absorption rate (SAR) limits during pTx RF pulse design. There is increasing interest in using temperature to ensure safety in MRI. In this work, we present a local temperature correlation matrix formalism and apply i...