Purely coherent, elastic scatterers, such as Grafoil[R], Carbopack[TM], and carbon black are all used for measuring the resolution function in spin-echo
As steady-state sequences are very fast sequences where fluid is bright, they can be viewed as a complement or alternative to single-shot fast spin-echo
sequences for body MRI applications (eg, for MRCP or fetal imaging).
We routinely employ a single-shot ETSE technique termed HASTE (Half Fourier Acquisition Single Shot Turbo Spin Echo) or single-shot fast spin-echo
Cervical spine: three-dimensional fast spin-echo
MR imaging--improved recovery of longitudinal magnetization with driven equilibrium pulse.
Hyper echoturbo spin-echo
sequences at 3T: Clinical application in neuroradiology.
Hyperechoes are used to reduce the RF power deposition from the spin-echo
Single-shot fast spin-echo
sequences are particularly effective for bowel imaging, (19) minimizing artifacts caused by magnetic susceptibility and peristaltic motion.
In contrast, conventional T2W spin-echo
sequences are lengthy and suffer from patient motion and increased examination time.
T2-weighted turbo spin-echo
(TSE) imaging yields a high signal of the fluid-equivalent portion (ie, serum) of the hemorrhagic lesion (Figure 2).
Utilizing MRI, lesions should be evaluated in at least 2 different orthogonal planes with conventional T1-weighted and T2-weighted spin-echo
MRI pulse sequences.
T1-weighted imaging that uses conventional spin-echo
(SE) technique requires significant imaging time and is no longer routinely performed.
A typical diffusion-weighted pulse sequence is constructed by the addition of a pair of diffusion-sensitizing gradients, also known as motion-probing gradients, applied along the same directional axis before and after the 180[degrees] refocusing pulse of a spin-echo