Silent MRA: arterial spin labeling magnetic resonant angiography with ultra-short time echo assessing cerebral arteriovenous malformation

Nobuhiko Arai, Takenori Akiyama, Kazuhiro Fujiwara, Kazunari Koike, Satoshi Takahashi, Takashi Horiguchi, Masahiro Jinzaki, Kazunari Yoshida

Research output: Contribution to journalArticle

Abstract

Purpose: MR angiography using the silent MR angiography algorithm (silent MRA), which combines arterial spin labeling and an ultrashort time echo, has not been used for the evaluation of cerebral arteriovenous malformations (CAVMs). We aimed to determine the usefulness of silent MRA for the evaluation of CAVMs. Methods: Twenty-nine CAVMs of 28 consecutive patients diagnosed by 4D CT angiography or digital subtraction angiography, who underwent both time-of-flight (TOF) MRA and silent MRA, were enrolled. Two observers independently assessed the TOF-MRA and silent MRA images of CAVMs. Micro AVM was defined as AVM with a nidus diameter less than 10 mm. The detection rate, visualization of the components, and accuracy of Spetzler–Martin grade were evaluated with statistical software R. Results: For all 29 CAVMs, 23 (79%) lesions were detected for TOF-MRA and all for silent MRA. Of 10 micro AVMs, only 4 (40%) lesions were detectable on TOF-MRA and all (100%) on silent MRA. The visibility of the nidus and drainer was significantly better for silent MRA than TOF-MRA (p < 0.001), while there was no significant difference in the feeder between the two sequences. The accuracy rates of the Spetzler–Martin grade for the TOF and silent MRA were 38% (11/29) and 79.3% (23/29), respectively (p < 0.001). Conclusions: Silent MRA is useful for evaluating CAVM components and detecting micro AVM.

Original languageEnglish
JournalNeuroradiology
DOIs
Publication statusAccepted/In press - 2020 Jan 1

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Intracranial Arteriovenous Malformations
Angiography
Four-Dimensional Computed Tomography
Digital Subtraction Angiography
Software

Keywords

  • Arterial spin labeling
  • Arteriovenous malformation
  • AV shunt disease
  • Magnetic resonance angiography
  • Magnetic resonance imaging
  • Time echo

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine

Cite this

@article{5802e5e02df041a7813f2a977ca54246,
title = "Silent MRA: arterial spin labeling magnetic resonant angiography with ultra-short time echo assessing cerebral arteriovenous malformation",
abstract = "Purpose: MR angiography using the silent MR angiography algorithm (silent MRA), which combines arterial spin labeling and an ultrashort time echo, has not been used for the evaluation of cerebral arteriovenous malformations (CAVMs). We aimed to determine the usefulness of silent MRA for the evaluation of CAVMs. Methods: Twenty-nine CAVMs of 28 consecutive patients diagnosed by 4D CT angiography or digital subtraction angiography, who underwent both time-of-flight (TOF) MRA and silent MRA, were enrolled. Two observers independently assessed the TOF-MRA and silent MRA images of CAVMs. Micro AVM was defined as AVM with a nidus diameter less than 10 mm. The detection rate, visualization of the components, and accuracy of Spetzler–Martin grade were evaluated with statistical software R. Results: For all 29 CAVMs, 23 (79{\%}) lesions were detected for TOF-MRA and all for silent MRA. Of 10 micro AVMs, only 4 (40{\%}) lesions were detectable on TOF-MRA and all (100{\%}) on silent MRA. The visibility of the nidus and drainer was significantly better for silent MRA than TOF-MRA (p < 0.001), while there was no significant difference in the feeder between the two sequences. The accuracy rates of the Spetzler–Martin grade for the TOF and silent MRA were 38{\%} (11/29) and 79.3{\%} (23/29), respectively (p < 0.001). Conclusions: Silent MRA is useful for evaluating CAVM components and detecting micro AVM.",
keywords = "Arterial spin labeling, Arteriovenous malformation, AV shunt disease, Magnetic resonance angiography, Magnetic resonance imaging, Time echo",
author = "Nobuhiko Arai and Takenori Akiyama and Kazuhiro Fujiwara and Kazunari Koike and Satoshi Takahashi and Takashi Horiguchi and Masahiro Jinzaki and Kazunari Yoshida",
year = "2020",
month = "1",
day = "1",
doi = "10.1007/s00234-019-02345-3",
language = "English",
journal = "Neuroradiology",
issn = "0028-3940",
publisher = "Springer Verlag",

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TY - JOUR

T1 - Silent MRA

T2 - arterial spin labeling magnetic resonant angiography with ultra-short time echo assessing cerebral arteriovenous malformation

AU - Arai, Nobuhiko

AU - Akiyama, Takenori

AU - Fujiwara, Kazuhiro

AU - Koike, Kazunari

AU - Takahashi, Satoshi

AU - Horiguchi, Takashi

AU - Jinzaki, Masahiro

AU - Yoshida, Kazunari

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Purpose: MR angiography using the silent MR angiography algorithm (silent MRA), which combines arterial spin labeling and an ultrashort time echo, has not been used for the evaluation of cerebral arteriovenous malformations (CAVMs). We aimed to determine the usefulness of silent MRA for the evaluation of CAVMs. Methods: Twenty-nine CAVMs of 28 consecutive patients diagnosed by 4D CT angiography or digital subtraction angiography, who underwent both time-of-flight (TOF) MRA and silent MRA, were enrolled. Two observers independently assessed the TOF-MRA and silent MRA images of CAVMs. Micro AVM was defined as AVM with a nidus diameter less than 10 mm. The detection rate, visualization of the components, and accuracy of Spetzler–Martin grade were evaluated with statistical software R. Results: For all 29 CAVMs, 23 (79%) lesions were detected for TOF-MRA and all for silent MRA. Of 10 micro AVMs, only 4 (40%) lesions were detectable on TOF-MRA and all (100%) on silent MRA. The visibility of the nidus and drainer was significantly better for silent MRA than TOF-MRA (p < 0.001), while there was no significant difference in the feeder between the two sequences. The accuracy rates of the Spetzler–Martin grade for the TOF and silent MRA were 38% (11/29) and 79.3% (23/29), respectively (p < 0.001). Conclusions: Silent MRA is useful for evaluating CAVM components and detecting micro AVM.

AB - Purpose: MR angiography using the silent MR angiography algorithm (silent MRA), which combines arterial spin labeling and an ultrashort time echo, has not been used for the evaluation of cerebral arteriovenous malformations (CAVMs). We aimed to determine the usefulness of silent MRA for the evaluation of CAVMs. Methods: Twenty-nine CAVMs of 28 consecutive patients diagnosed by 4D CT angiography or digital subtraction angiography, who underwent both time-of-flight (TOF) MRA and silent MRA, were enrolled. Two observers independently assessed the TOF-MRA and silent MRA images of CAVMs. Micro AVM was defined as AVM with a nidus diameter less than 10 mm. The detection rate, visualization of the components, and accuracy of Spetzler–Martin grade were evaluated with statistical software R. Results: For all 29 CAVMs, 23 (79%) lesions were detected for TOF-MRA and all for silent MRA. Of 10 micro AVMs, only 4 (40%) lesions were detectable on TOF-MRA and all (100%) on silent MRA. The visibility of the nidus and drainer was significantly better for silent MRA than TOF-MRA (p < 0.001), while there was no significant difference in the feeder between the two sequences. The accuracy rates of the Spetzler–Martin grade for the TOF and silent MRA were 38% (11/29) and 79.3% (23/29), respectively (p < 0.001). Conclusions: Silent MRA is useful for evaluating CAVM components and detecting micro AVM.

KW - Arterial spin labeling

KW - Arteriovenous malformation

KW - AV shunt disease

KW - Magnetic resonance angiography

KW - Magnetic resonance imaging

KW - Time echo

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U2 - 10.1007/s00234-019-02345-3

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JO - Neuroradiology

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SN - 0028-3940

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