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Comparison of Time-of-Flight–Magnetic Resonance Angiography From Silent Scan Magnetic Resonance Angiography in Depiction of Arteriovenous Malformation of the Brain

Tomura, Noriaki MD; Saginoya, Toshiyuki MD; Kokubun, Mika RT; Horiuchi, Kazuomi MD; Watanabe, Zenichiro MD

Journal of Computer Assisted Tomography: November/December 2019 - Volume 43 - Issue 6 - p 943–947
doi: 10.1097/RCT.0000000000000935
Neuro/Head and Neck Imaging
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Objective Silent magnetic resonance angiography (MRA) was compared with time-of-flight (TOF)–MRA in imaging of arteriovenous malformations (AVMs) of the brain.

Methods Thirty-five consecutive patients with AVMs of the brain were included. Quantitative analyses were performed by measuring both signal-to-noise ratio and contrast-to-noise ratio of the nidus. Qualitative analysis (scores 1–4) was performed by evaluating depictions of feeding arteries and draining veins independently by 2 reviewers.

Results Both signal-to-noise ratio and contrast-to-noise ratio in TOF-MRA were significantly higher than those in silent MRA. For both feeders and drainers, scores were significantly higher in silent MRA than in TOF-MRA for both reviewers. Interrater agreement was higher in silent MRA than in TOF-MRA.

Conclusions Silent MRA visualized feeders and drainers in AVMs significantly better than did TOF-MRA. Interrater agreement was also better in silent MRA.

From the Department of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan.

Received for publication May 15, 2019; accepted August 11, 2019.

Correspondence to: Noriaki Tomura, MD, Department of Neuroradiology, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama City, Fukushima 963-8563, Japan (e-mail: tomura@bloom.ocn.ne.jp).

No funding was received for this work.

The authors declare no conflict of interest.

Online date: November 15, 2019

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