Fast or Turbo Spin-echo (FSE/TSE) - Video Lesson

Hey, everybody. Welcome to today's lesson on pulse sequences in MRI. This lesson focuses on fast spin echo, FSE, also known as turbospin echo, TSE sequences. We will discuss what occurs during a fast spin echo pulse sequence as well as how fast spin echo impacts image waiting. Fast spin echo pulse sequences significantly cut down imaging time, so having a thorough understanding of the theory behind them is critical. Let's get started. Fast spin echo or FSE, also known as turbospin echo or TSE, is an MRI pulse sequence technique that accelerates image acquisition by acquiring multiple echoes following a single RF excitation pulse. You may also hear FSE referred to as rare, which stands for rapid acquisition with relaxation enhancement. This method significantly reduces scan time compared to conventional spin echo sequences because we are filling multiple lines of k space, which is where the data collected during the scan is