Arterial spin labeling perfusion-weighted MRI for long-term follow-up of a cerebral arteriovenous malformation after stereotactic radiosurgery

We present a longitudinal series of arterial spin-labeling magnetic resonance imaging (ASL-MRI) in a patient with cerebral arteriovenous malformations (AVMs) treated by stereotactic radiosurgery (SRS). Pretreatment ASL-MRI showed high signal intensity in both the nidus and draining veins, and the la...

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Bibliographic Details
Published inActa radiologica short reports Vol. 3; no. 1; p. 2047981613510160
Main Authors Shimizu, Kazuhiro, Kosaka, Nobuyuki, Yamamoto, Tatsuya, Shioura, Hiroki, Kodera, Toshiaki, Kikuta, Ken-Ichiro, Kimura, Hirohiko
Format Journal Article
LanguageEnglish
Published England SAGE Publications 01.01.2014
Subjects
Case Report
Magnetic resonance imaging (MRI)
arteriovenous malformation (AVM)
radiosurgery
brain
arterial spin labeling (ASL)
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Summary:We present a longitudinal series of arterial spin-labeling magnetic resonance imaging (ASL-MRI) in a patient with cerebral arteriovenous malformations (AVMs) treated by stereotactic radiosurgery (SRS). Pretreatment ASL-MRI showed high signal intensity in both the nidus and draining veins, and the latter signal abnormality gradually moved proximally by 14 months after SRS. At 24 months, the signal abnormalities finally disappeared, indicating complete obliteration of the nidus. The hemodynamic changes in the AVM were clearly visualized in the longitudinal ASL-MRI series, thus this non-invasive MR method may be useful not only for detecting AVMs but also for assessment of their response after SRS.
ISSN:2047-9816
2047-9816
DOI:10.1177/2047981613510160