Abstract
PURPOSE: To test the accuracy of fast spin-echo (FSE) imaging versus that of double-echo conventional spin-echo (CSE) imaging in identification of the increased hippocampal signal intensity associated with mesial temporal sclerosis (MTS). MATERIALS AND METHODS: Thirty-four subjects who subsequently underwent anterior temporal lobectomy for intractable seizures and in whom the presence or absence of MTS was ascertained with cer-tainty were imaged with CSE and FSE. Three blinded reviewers evaluated the first and second CSE images (CSE1 and CSE2) and the FSE images. RESULTS: CSE1 imaging had lower accuracy than FSE (P = .038) and CSE2 (P = .006) imaging. CSE2 imaging was slightly more accurate than FSE imaging (P = .048). Contrast-tonoise ratios were lower for CSE1 imaging than for CSE2 or FSE imaging (P < .001). CONCLUSION: The FSE sequence evaluated was more time efficient than CSE imaging but slightly less accurate. Therefore, substitution of this sequence for a CSE sequence seems unwarranted.
Original language | English (US) |
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Pages (from-to) | 123-127 |
Number of pages | 5 |
Journal | Radiology |
Volume | 192 |
Issue number | 1 |
DOIs | |
State | Published - Jul 1994 |
Keywords
- Brain, abnormalities, 134.89
- Epilepsy, 134.89
- Magnetic resonance (MR), pulse sequences, 134.121411
- Magnetic resonance (MR), rapid imaging, 134.121416
- Seizures, 134.89
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging