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Multiparametric MRI of intracranial aneurysms treated with the Woven EndoBridge (WEB): a case of Faraday's cage?

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Multiparametric MRI of intracranial aneurysms treated with the Woven EndoBridge (WEB): a case of Faraday's cage? / Nawka, Marie Teresa; Sedlacik, Jan; Frölich, Andreas; Bester, Maxim; Fiehler, Jens; Buhk, Jan-Hendrik.

in: J NEUROINTERV SURG, Jahrgang 10, Nr. 10, 10.2018, S. 988-994.

Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung

Harvard

Nawka, MT, Sedlacik, J, Frölich, A, Bester, M, Fiehler, J & Buhk, J-H 2018, 'Multiparametric MRI of intracranial aneurysms treated with the Woven EndoBridge (WEB): a case of Faraday's cage?', J NEUROINTERV SURG, Jg. 10, Nr. 10, S. 988-994. https://doi.org/10.1136/neurintsurg-2017-013625

APA

Nawka, M. T., Sedlacik, J., Frölich, A., Bester, M., Fiehler, J., & Buhk, J-H. (2018). Multiparametric MRI of intracranial aneurysms treated with the Woven EndoBridge (WEB): a case of Faraday's cage? J NEUROINTERV SURG, 10(10), 988-994. https://doi.org/10.1136/neurintsurg-2017-013625

Vancouver

Nawka MT, Sedlacik J, Frölich A, Bester M, Fiehler J, Buhk J-H. Multiparametric MRI of intracranial aneurysms treated with the Woven EndoBridge (WEB): a case of Faraday's cage? J NEUROINTERV SURG. 2018 Okt;10(10):988-994. https://doi.org/10.1136/neurintsurg-2017-013625

Bibtex

@article{9a2762d8d42244b4bc76a18ddcc48fd6,
title = "Multiparametric MRI of intracranial aneurysms treated with the Woven EndoBridge (WEB): a case of Faraday's cage?",
abstract = "OBJECTIVE: To evaluate multiparametric MRI including non-contrast and contrast-enhanced morphological and angiographic techniques for intracranial aneurysms treated with the single-layer Woven EndoBridge (WEB) embolization system applying simultaneous digital subtraction angiography (DSA) as the reference of standard.MATERIALS AND METHODS: We retrospectively identified all patients with incidental and acute ruptured intracranial aneurysms treated with a WEB device (WEB SL and WEB SLS) between March 2014 and June 2016 in our neurovascular center with early (within 7 days) postinterventional multiparametric MRI as well as mid-term (5-8 months) follow-up MRI and DSA available. Occlusion rates were recorded both in DSA and MR angiography (MRA). In MRI, signal intensities within the WEB as well as in the occluded dome distal to the WEB, if present, were measured by region-of-interest (ROI) analysis.RESULTS: Twenty-five patients fulfilled the inclusion criteria. Rates of complete/adequate occlusion at mid-term follow-up were 84% with both MRA and DSA. A strong signal loss within the WEB was observed in all MR sequences at initial and follow-up examinations. ROI analysis did not reveal significant differences in non-contrast (P=0.946) and contrast-enhanced imaging (P=0.377). A T1-hyperintense thrombus in the non-WEB-carrying dome was a frequent observation.CONCLUSIONS: Signal intensity measurements in multiparametric MRI suggest that neither contrast-enhanced MRA nor morphological sequences are capable of revealing reliable information on the WEB lumen, presumably due to radio frequency shielding. MRI is therefore not suitable for confirming complete thrombus formation within the WEB.",
keywords = "Adult, Aged, Aneurysm, Ruptured, Angiography, Digital Subtraction, Embolization, Therapeutic, Female, Follow-Up Studies, Humans, Intracranial Aneurysm, Magnetic Resonance Angiography, Magnetic Resonance Imaging, Male, Middle Aged, Retrospective Studies, Treatment Outcome, Journal Article",
author = "Nawka, {Marie Teresa} and Jan Sedlacik and Andreas Fr{\"o}lich and Maxim Bester and Jens Fiehler and Jan-Hendrik Buhk",
note = "{\textcopyright} Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.",
year = "2018",
month = oct,
doi = "10.1136/neurintsurg-2017-013625",
language = "English",
volume = "10",
pages = "988--994",
journal = "J NEUROINTERV SURG",
issn = "1759-8478",
publisher = "BMJ PUBLISHING GROUP",
number = "10",

}

RIS

TY - JOUR

T1 - Multiparametric MRI of intracranial aneurysms treated with the Woven EndoBridge (WEB): a case of Faraday's cage?

AU - Nawka, Marie Teresa

AU - Sedlacik, Jan

AU - Frölich, Andreas

AU - Bester, Maxim

AU - Fiehler, Jens

AU - Buhk, Jan-Hendrik

N1 - © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

PY - 2018/10

Y1 - 2018/10

N2 - OBJECTIVE: To evaluate multiparametric MRI including non-contrast and contrast-enhanced morphological and angiographic techniques for intracranial aneurysms treated with the single-layer Woven EndoBridge (WEB) embolization system applying simultaneous digital subtraction angiography (DSA) as the reference of standard.MATERIALS AND METHODS: We retrospectively identified all patients with incidental and acute ruptured intracranial aneurysms treated with a WEB device (WEB SL and WEB SLS) between March 2014 and June 2016 in our neurovascular center with early (within 7 days) postinterventional multiparametric MRI as well as mid-term (5-8 months) follow-up MRI and DSA available. Occlusion rates were recorded both in DSA and MR angiography (MRA). In MRI, signal intensities within the WEB as well as in the occluded dome distal to the WEB, if present, were measured by region-of-interest (ROI) analysis.RESULTS: Twenty-five patients fulfilled the inclusion criteria. Rates of complete/adequate occlusion at mid-term follow-up were 84% with both MRA and DSA. A strong signal loss within the WEB was observed in all MR sequences at initial and follow-up examinations. ROI analysis did not reveal significant differences in non-contrast (P=0.946) and contrast-enhanced imaging (P=0.377). A T1-hyperintense thrombus in the non-WEB-carrying dome was a frequent observation.CONCLUSIONS: Signal intensity measurements in multiparametric MRI suggest that neither contrast-enhanced MRA nor morphological sequences are capable of revealing reliable information on the WEB lumen, presumably due to radio frequency shielding. MRI is therefore not suitable for confirming complete thrombus formation within the WEB.

AB - OBJECTIVE: To evaluate multiparametric MRI including non-contrast and contrast-enhanced morphological and angiographic techniques for intracranial aneurysms treated with the single-layer Woven EndoBridge (WEB) embolization system applying simultaneous digital subtraction angiography (DSA) as the reference of standard.MATERIALS AND METHODS: We retrospectively identified all patients with incidental and acute ruptured intracranial aneurysms treated with a WEB device (WEB SL and WEB SLS) between March 2014 and June 2016 in our neurovascular center with early (within 7 days) postinterventional multiparametric MRI as well as mid-term (5-8 months) follow-up MRI and DSA available. Occlusion rates were recorded both in DSA and MR angiography (MRA). In MRI, signal intensities within the WEB as well as in the occluded dome distal to the WEB, if present, were measured by region-of-interest (ROI) analysis.RESULTS: Twenty-five patients fulfilled the inclusion criteria. Rates of complete/adequate occlusion at mid-term follow-up were 84% with both MRA and DSA. A strong signal loss within the WEB was observed in all MR sequences at initial and follow-up examinations. ROI analysis did not reveal significant differences in non-contrast (P=0.946) and contrast-enhanced imaging (P=0.377). A T1-hyperintense thrombus in the non-WEB-carrying dome was a frequent observation.CONCLUSIONS: Signal intensity measurements in multiparametric MRI suggest that neither contrast-enhanced MRA nor morphological sequences are capable of revealing reliable information on the WEB lumen, presumably due to radio frequency shielding. MRI is therefore not suitable for confirming complete thrombus formation within the WEB.

KW - Adult

KW - Aged

KW - Aneurysm, Ruptured

KW - Angiography, Digital Subtraction

KW - Embolization, Therapeutic

KW - Female

KW - Follow-Up Studies

KW - Humans

KW - Intracranial Aneurysm

KW - Magnetic Resonance Angiography

KW - Magnetic Resonance Imaging

KW - Male

KW - Middle Aged

KW - Retrospective Studies

KW - Treatment Outcome

KW - Journal Article

U2 - 10.1136/neurintsurg-2017-013625

DO - 10.1136/neurintsurg-2017-013625

M3 - SCORING: Journal article

C2 - 29440326

VL - 10

SP - 988

EP - 994

JO - J NEUROINTERV SURG

JF - J NEUROINTERV SURG

SN - 1759-8478

IS - 10

ER -