Sep 4, 2022 · An MRI sequence is a number of radiofrequency pulses and gradients that result in a set of images with a particular appearance. This article presents a simplified approach to recognizing …

Nov 29, 2021 · An MRI pulse sequence is a programmed set of changing magnetic gradients. Each sequence will have a number of parameters, and multiple sequences grouped together into an MRI …

Sep 18, 2025 · The more easily water can diffuse (i.e. the further a water molecule can move around during the sequence) the less initial T2* signal will remain. For example, water within cerebrospinal …

So let’s talk about the basic sequences that make up an MRI and what they can show us. 4/ Let’s start w/T1—it is #1 after all! T1 is for anatomy. Since it’s anatomic, brain structures will reflect the same …

Jul 9, 2024 · T1 weighted image (also referred to as T1WI or the "spin-lattice" relaxation time) is one of the basic pulse sequences in MRI and demonstrates differences in the T1 relaxation times of tissues. …

Jan 12, 2025 · Different pulses and different signals provide a variety of sequences and images that we use. Unlike CT where we describe "density", images are described by signal intensity ("hyper-" …

Sep 4, 2025 · The Dixon method, also known as the Dixon technique, is an MRI sequence based on chemical shift imaging and designed to achieve uniform fat suppression. It has been gaining …

Apr 2, 2020 · The FLASH and SPGR (SPoiled Gradient-Recalled) sequences show better tissue contrast between white matter and grey matter in the brain and spinal cord than GRASS or FISP and …

Mar 23, 2023 · Brain screen protocol is a simple non-contrast MRI protocol comprising a group of basic MRI sequences as a useful approach when imaging the brain when no particular condition is being …

Jun 2, 2023 · The FLAIR sequence is part of almost all protocols for imaging the brain, particularly useful in the detection of subtle changes at the periphery of the hemispheres and in the periventricular …