Observation of a Refocusing Rf Pulse Range Based on an Optimized Echo Train Length for Minimum Temperature Rise in T2-Weighted Images Using Fast Spin Echo

2021 ◽  
Vol 31 (2) ◽  
pp. 25-32
Author(s):  
Sangwoo Kim ◽  
Jae-Dong Rhim
Keyword(s):  
Temperature Rise ◽  
Minimum Temperature ◽  
Spin Echo ◽  
Fast Spin Echo ◽  
Echo Train Length ◽  
Rf Pulse ◽  
Train Length ◽  
Fast Spin ◽  
T2 Weighted Images

scholarly journals Evaluation of Spatial Resolution on Fast Spin-Echo Images : Effect of Echo Train Length and Interecho Spacing

1997 ◽  
Vol 53 (5) ◽  
pp. 590-594 ◽  
Author(s):  
AKIO OGURA ◽  
YOSHIKI NAKAYAMA ◽  
YUKIO ISHIBASHI ◽  
RYUICHI YAMAMOTO ◽  
SHINOBU ISHIYAMA
Keyword(s):  
Spatial Resolution ◽  
Spin Echo ◽  
Fast Spin Echo ◽  
Echo Train Length ◽  
Train Length ◽  
Fast Spin

MR Evaluation of CSF Fistulae

1997 ◽  
Vol 38 (4) ◽  
pp. 603-609 ◽  
Author(s):  
V. Gupta ◽  
M. Goyal ◽  
N. Mishra ◽  
S. Gaikwad ◽  
A. Sharma
Keyword(s):  
Spin Echo ◽  
Fast Spin Echo ◽  
Ct Cisternography ◽  
Csf Fistula ◽  
Significant Difference ◽  
Csf Leakage ◽  
Fluid Signal ◽  
Fast Spin ◽  
T2 Weighted Images

Purpose: To evaluate the role of MR imaging in the localisation of cerebrospinal fluid (CSF) fistulae. Material and Methods: A total of 36 consecutive unselected patients with either clinically proven CSF leakage (n=26) or suspected CSF fistula (n=10) were prospectively evaluated by MR. All MR examinations included fast spin-echo T2-weighted images in the 3 orthogonal planes. Thin-section CT was performed following equivocal or negative MR examination. MR and CT findings were correlated with surgical results in 33 patients. Results: CSF fistula was visualised as a dural-bone defect with hyperintense fluid signal continuous with that in the basal cisterns on T2-weighted images. MR was positive in 26 cases, in 24 of which the fistula was confirmed surgically. In 2 patients the CSF leakage was directly demonstrated on MR. MR sensitivity of 80% compared favourably with the reported 46-81% of CT cisternography (CTC). No significant difference in MR sensitivity in detecting CSF fistula was found between active and inactive leaks Conclusion: MR is recommended as the first investigation for detecting a CSF fistula owing to its efficacy and to its freedom from the potential complications encountered with CTC.

scholarly journals Moderately T2-weighted Images Obtained with the Single-Shot Fast Spin-Echo Technique: Differentiating between Malignant and Benign Urinary Obstructions

2002 ◽  
Vol 1 (2) ◽  
pp. 81-87
Author(s):  
Masao OBUCHI ◽  
Hideharu SUGIMOTO ◽  
Taro TAKAHARA ◽  
Hayato KUBOTA ◽  
Wakako YAMAMOTO ◽  
...  
Keyword(s):  
Spin Echo ◽  
Fast Spin Echo ◽  
Single Shot ◽  
Spin Echo Technique ◽  
Fast Spin ◽  
T2 Weighted Images
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