Evaluation of giant arachnoid granulations with high-resolution 3D-volumetric MR sequences at 3T
Copyright © 2019 Elsevier B.V. All rights reserved..
PURPOSE: To evaluate the contribution to the diagnosis of the giant arachnoid granulations (AGs) of three-dimensional (3D) high-resolution magnetic resonance (MR) imaging sequences such as T2-weighted sampling perfection with application optimized contrasts using different flip-angle evolution (SPACE) and post-contrast T1-weighted magnetization prepared rapid gradient echo (MPRAGE).
MATERIALS AND METHODS: Patients with 45 giant AGs were included in this retrospective study. All the patients were performed 3D T2-weighted SPACE and contrast enhanced MR venography sequences, as well as conventional cerebral MR imaging sequences. Post-contrast T1 weighted MPRAGE sequence were performed on 38/45 patients. All cerebral MR examinations were reviewed by the 2 neuroradiologists. Each GA was evaluated carefully to assess location and mean diameter.
RESULTS: The most common location for giant AGs was at both transverse sinuses. Fluid signal feature within the giant AGs was not isointense to CSF on SE T1 and FLAIR MR imaging in 32 of 45 giant AGs. There were cerebral herniation into AG in 10 (22.2 %) of 45 giant AGs. 33 (73.3 %) of 45 giant AGs had central vein finding into AG in contrast enhanced MR venography. Signal void phenomenon into AG in 3D T2-weighted SPACE MR sequence was identified in 28 (62.2 %) of 45 giant AGs.
CONCLUSIONS: Fluid within giant AGs had no completely CSF-like signal intensity on conventional and 3D high-resolution MR imaging sequences. Majority of CSF-incongruent fluid within giant AGs on conventional sequences is mostly due to intra-AG CSF flow.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:121 |
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| Enthalten in: |
European journal of radiology - 121(2019) vom: 20. Dez., Seite 108722 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ogul, Hayri [VerfasserIn] |
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| Links: |
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| Themen: |
Brain |
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| Anmerkungen: |
Date Completed 18.03.2020 Date Revised 18.03.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ejrad.2019.108722 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM303100168 |
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| 245 | 1 | 0 | |a Evaluation of giant arachnoid granulations with high-resolution 3D-volumetric MR sequences at 3T |
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| 500 | |a Date Completed 18.03.2020 | ||
| 500 | |a Date Revised 18.03.2020 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2019 Elsevier B.V. All rights reserved. | ||
| 520 | |a PURPOSE: To evaluate the contribution to the diagnosis of the giant arachnoid granulations (AGs) of three-dimensional (3D) high-resolution magnetic resonance (MR) imaging sequences such as T2-weighted sampling perfection with application optimized contrasts using different flip-angle evolution (SPACE) and post-contrast T1-weighted magnetization prepared rapid gradient echo (MPRAGE) | ||
| 520 | |a MATERIALS AND METHODS: Patients with 45 giant AGs were included in this retrospective study. All the patients were performed 3D T2-weighted SPACE and contrast enhanced MR venography sequences, as well as conventional cerebral MR imaging sequences. Post-contrast T1 weighted MPRAGE sequence were performed on 38/45 patients. All cerebral MR examinations were reviewed by the 2 neuroradiologists. Each GA was evaluated carefully to assess location and mean diameter | ||
| 520 | |a RESULTS: The most common location for giant AGs was at both transverse sinuses. Fluid signal feature within the giant AGs was not isointense to CSF on SE T1 and FLAIR MR imaging in 32 of 45 giant AGs. There were cerebral herniation into AG in 10 (22.2 %) of 45 giant AGs. 33 (73.3 %) of 45 giant AGs had central vein finding into AG in contrast enhanced MR venography. Signal void phenomenon into AG in 3D T2-weighted SPACE MR sequence was identified in 28 (62.2 %) of 45 giant AGs | ||
| 520 | |a CONCLUSIONS: Fluid within giant AGs had no completely CSF-like signal intensity on conventional and 3D high-resolution MR imaging sequences. Majority of CSF-incongruent fluid within giant AGs on conventional sequences is mostly due to intra-AG CSF flow | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a Cerebrospinal fluid | |
| 650 | 4 | |a Magnetic resonance imaging | |
| 700 | 1 | |a Guven, Fadime |e verfasserin |4 aut | |
| 700 | 1 | |a Izgi, Emine |e verfasserin |4 aut | |
| 700 | 1 | |a Kantarci, Mecit |e verfasserin |4 aut | |
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