A processor implemented monitoring system includes a sensor coupled to the processor for sampling a physiological parameter of a subject which may comprise a subject unique identification parameter. An MRI apparatus employing the MRI method is also provided. During the operation of the gas turbine, if an abnormality, such as misfire or fuel injection nozzle obstruction, occurs in one or more of the combustors, the resulting change in gas temperature triggers a signal to stop, and thereby protect the gas turbine.