Browsing School of Physics by Author "Tuohy, Brendan"
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Experimental and numerical assessment of MRI-induced temperature change and SAR distributions in phantoms
Colgan, Niall; Van der Putten, Wil; Tuohy, Brendan (Springer Verlag, 2017-06)During an MR procedure, most of the transmitted RF power is transformed into heat within the patient’s tissue and implants as a result of resistive losses which is referred to as the specific energy absorption rate (SAR) ... -
Experimental assessment of clinical MRI-induced global SAR distributions in head phantoms
Blackwell, James; Oluniran, Gideon; Tuohy, Brendan; Destrade, Michel; Kraśny, Marcin Jan; Colgan, Niall (Elsevier, 2019-10-05)Accurate estimation of SAR is critical to safeguarding vulnerable patients who require an MRI procedure. The increased static field strength and RF duty cycle capabilities in modern MRI scanners mean that systems can easily ... -
Experimental assessment of MRI-induced temperature change and SAR distributions in phantoms
Blackwell, J.; Van der Putten, Wil; Tuohy, Brendan; Colgan, Niall (NUI Galway, 2017-11-14)During an MR procedure, most of the transmitted RF power is transformed into heat within the patients’ tissue resulting from resistive losses, referred to as the specific energy absorption rate(SAR) (2). The EU standardisation ...