Study for the MRI Board Exam. Engage with flashcards and multiple choice questions, each question includes hints and detailed explanations to aid your study. Prepare effectively for your exam!

Multiple Choice

Enabling Driven Equilibrium will enable the operator to:

Driven Equilibrium keeps the spins near their steady-state by driving longitudinal magnetization back toward equilibrium between excitations. This means you can shorten the repetition time without letting the tissue signal lose the intended contrast, because the magnetization is reconstituted in a controlled way after each pulse. By rapidly restoring Mz, the next RF excitation sees a consistent amount of available magnetization, preserving the T1-weighted contrast you aim for even with a shorter TR. The echo time is set by the sequence parameters and is not inherently altered by running in driven equilibrium, so the overall contrast remains as intended while you gain speed.

Driven Equilibrium keeps the spins near their steady-state by driving longitudinal magnetization back toward equilibrium between excitations. This means you can shorten the repetition time without letting the tissue signal lose the intended contrast, because the magnetization is reconstituted in a controlled way after each pulse. By rapidly restoring Mz, the next RF excitation sees a consistent amount of available magnetization, preserving the T1-weighted contrast you aim for even with a shorter TR. The echo time is set by the sequence parameters and is not inherently altered by running in driven equilibrium, so the overall contrast remains as intended while you gain speed.