The multi-echo spin-echo sequence is a series of operators, referred to as periodic operators. Each periodic operator consists of a free rotation (no RF), a refocusing RF pulse, and another free rotation, identical to the first one. A preparation operator that precedes the periodic operators ...
MESE means Multi-Echo Spin-Echo (also Management & Economic Simulation Exercise and 16 more) Rating: 1 1 vote What is the abbreviation for Multi-Echo Spin-Echo?Multi-Echo Spin-Echo is abbreviated as MESEShare this Have you found the page useful?Please use the following to spread the word:...
1.The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained. 该研究报告的作者解释,云母标本成像协议包括自旋声脉冲串和在几个平行声间段收集的多声影像。 声明:以上例句、词性分类...
In general, T2 distributions are reconstructed from multi-echo T2 MRI signals, which can be acquired, for example, through multi-echo spin echo sequences, where a 90∘ excitation pulse is followed by a train of 180∘ refocusing pulses. Given a sequence of n pulses, the signal s is a...
To quantify T2*, multiple echoes are typically acquired with a multi-echo gradient echo sequence using either monopolar or bipolar readout gradients. The use of bipolar readout gradients achieves a shorter echo spacing time, enabling the acquisition of a larger number of echoes in the same scan...
Non-localized spectroscopic data were acquired using a CPMG multi-spin echo sequence consisting of rectangular RF pulses of duration 20 μμs (90∘) and 40 μμs (180∘), yielding 2048 echo peak intensities at TE=0.4,0.8,⋯,819.2 ms for each spin excitation, followed by a recovery ...
fast spin-echo imaging The aim of the present study was to assess the performance of pre-biopsy T2-weighted MR imaging using multishot echo-planar imaging (EPI) sequence for visu... T Tamada,T Sone,K Nagai,... - 《European Radiology》 被引量: 115发表: 2004年 Single breath-hold T2-...
Purpose: To demonstrate further acceleration of spin echo MRI by combining the simultaneous multi‐slice approach with the recently introduced patterned multislice excitation (PME) technique and evaluate application for rapid diffusion‐weighted MRI. Theory and Methods: Implementation at 3T involv...
Results are shown for a fat saturation spin-echo sequence, a single-shot echo-planar gradient-recalled echo sequence, and a spiral acquisition gradient-recalled echo sequence. In all cases, dynamic shimming with shim currents and center frequency optimized for each slice is shown to give better ...
The CPMG spin-echo pulse sequence was used to measure the transverse relaxation time. The relaxation delay (repetition time) was set to 7 s and data was acquired for τ (τ=one-half the echo time, TE) values of 25 μs, 125 μs, 250 μs, and 500 μs. 255 echo peaks were recorde...