Evaluation of Intra-Aneurysmal Residual Blood Flow with the iMSDE T1-Black Blood Imaging after Flow Diverter Treatment
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- Suzuki Yume
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Toma Naoki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Inoue Katsuhiro
- Department of Radiology, Mie University Hospital, Tsu, Mie, Japan
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- Ichikawa Tomonori
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Nishikawa Hirofumi
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Miura Yoichi
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Fujimoto Masashi
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Yasuda Ryuta
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Maeda Masayuki
- Department of Neuroradiology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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- Suzuki Hidenori
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Abstract
<p>Objective: We aimed to evaluate the efficacy of the “improved motion-sensitized driven-equilibrium (iMSDE)”-prepared T1-weighted black blood (T1-BB) MRI for monitoring treatment effect with a flow diverter (FD) for cerebral aneurysms.</p><p>Methods: Following the exclusion of concomitant coiling and retreatment cases from 60 consecutive cases of cerebral aneurysms treated with FDs at our institution, 32 with imaging data were included in the analysis. Detectability of residual blood flow within the aneurysms was validated as follows: 1) comparison of MRI sequences (iMSDE-prepared T1-BB images, T1-weighted images [ T1WI], and time-of-flight [ TOF]-MRA) in cases of incompletely occluded aneurysms and 2) comparison of angiography and MRI sequences in the same period.</p><p>Results: 1) The probability of diagnosing intra-aneurysmal blood flow was significantly higher with iMSDE-prepared T1-BB (iMSDE-prepared T1-BB vs. T1WI, p <0.001; iMSDE-prepared T1-BB vs. TOF-MRA, p <0.001). 2) The diagnostic accuracy of residual aneurysmal blood flow was significantly higher with iMSDE-prepared T1-BB than that with T1WI (p = 0.032). Furthermore, in cases of incomplete occlusion, the probability of detecting intra-aneurysmal blood flow was significantly higher with iMSDE-prepared T1-BB (iMSDE-prepared T1-BB vs. T1WI, p <0.001; iMSDE-prepared T1-BB vs. TOF-MRA, p = 0.023).</p><p>Conclusion: Our results demonstrated that iMSDE-prepared T1-BB could help distinguish between blood flow and thrombus within the aneurysms after FD treatment, especially in the early stages of FD treatment.</p>
Journal
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- Journal of Neuroendovascular Therapy
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Journal of Neuroendovascular Therapy 17 (8), 159-166, 2023
The Japanese Society for Neuroendovascular Therapy
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Keywords
Details 詳細情報について
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- CRID
- 1390860144700913792
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- NII Book ID
- AA1229439X
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- ISSN
- 21862494
- 18824072
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- NDL BIB ID
- 033068266
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
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- Abstract License Flag
- Disallowed