What is a potential consequence of higher flip angles in MR imaging?

Higher flip angles in MR imaging can lead to increased heating in tissues, which is the correct answer. When the flip angle is increased, more energy is absorbed by the tissues due to the stronger radiofrequency (RF) pulses required to achieve the desired angle. This energy can cause a rise in the local temperature of the tissue, which is an important consideration for patient safety.

In MRI, maintaining the thermal safety of tissues is crucial, as excessive heating can lead to thermal injury. This is especially significant in sequences that involve longer pulse durations or high power, which can elevate specific absorption rates (SAR) and contribute to increased tissue heating.

Understanding the implications of flip angles is vital for MR practitioners to optimize imaging parameters while ensuring patient safety.