High-signal venous sinuses on MR angiography: discrimination between reversal of venous flow and arteriovenous shunting using arterial spin labeling

2020 ◽  
Author(s):  
Masatoshi Iwamura ◽  
Hiroshi Midorikawa ◽  
Koichi Shibutani ◽  
Akihisa Kakuta ◽  
Sho Maruyama ◽  
...  
Keyword(s):  
Arterial Spin Labeling ◽  
Mr Angiography ◽  
Spin Labeling ◽  
High Signal ◽  
Venous Flow ◽  
Arteriovenous Shunting ◽  
Venous Sinuses

Vessel-selective 4D-MR angiography using super-selective pseudo-continuous arterial spin labeling may be a useful tool for assessing brain AVM hemodynamics

2020 ◽  
Vol 30 (12) ◽  
pp. 6452-6463 ◽  
Author(s):  
Osamu Togao ◽  
Makoto Obara ◽  
Michael Helle ◽  
Koji Yamashita ◽  
Kazufumi Kikuchi ◽  
...  
Keyword(s):  
Arterial Spin Labeling ◽  
Mr Angiography ◽  
Spin Labeling ◽  
Brain Avm ◽  
Continuous Arterial Spin Labeling

Acceleration-selective arterial spin labeling MR angiography for visualization of brain arteriovenous malformations

2019 ◽  
Vol 61 (9) ◽  
pp. 979-989 ◽  
Author(s):  
Osamu Togao ◽  
Akio Hiwatashi ◽  
Koji Yamashita ◽  
Daichi Momosaka ◽  
Makoto Obara ◽  
...  
Keyword(s):  
Arterial Spin Labeling ◽  
Arteriovenous Malformations ◽  
Mr Angiography ◽  
Spin Labeling ◽  
Brain Arteriovenous Malformations

scholarly journals Acceleration-selective Arterial Spin-labeling MR Angiography Used to Visualize Distal Cerebral Arteries and Collateral Vessels in Moyamoya Disease

Radiology ◽  
2018 ◽  
Vol 286 (2) ◽  
pp. 611-621 ◽  
Author(s):  
Osamu Togao ◽  
Akio Hiwatashi ◽  
Makoto Obara ◽  
Koji Yamashita ◽  
Kazufumi Kikuchi ◽  
...  
Keyword(s):  
Moyamoya Disease ◽  
Arterial Spin Labeling ◽  
Mr Angiography ◽  
Cerebral Arteries ◽  
Spin Labeling ◽  
Collateral Vessels

scholarly journals Evaluation of Intracranial Vasculatures in Healthy Subjects with Arterial-Spin-Labeling-Based 4D-MR Angiography at 3T

2016 ◽  
Vol 15 (3) ◽  
pp. 335-339 ◽  
Author(s):  
Yasuhiko IRYO ◽  
Toshinori HIRAI ◽  
Masanobu NAKAMURA ◽  
Machiko TATEISHI ◽  
Eri HAYASHIDA ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Arterial Spin Labeling ◽  
Mr Angiography ◽  
Spin Labeling

Non-contrast enhanced 4D intracranial MR angiography based on pseudo-continuous arterial spin labeling with the keyhole and view-sharing technique

2018 ◽  
Vol 80 (2) ◽  
pp. 719-725 ◽  
Author(s):  
Makoto Obara ◽  
Osamu Togao ◽  
Gabriele M. Beck ◽  
Shuhei Shibukawa ◽  
Tomoyuki Okuaki ◽  
...  
Keyword(s):  
Arterial Spin Labeling ◽  
Mr Angiography ◽  
Spin Labeling ◽  
View Sharing ◽  
Contrast Enhanced ◽  
Continuous Arterial Spin Labeling

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

2014 ◽  
Vol 3 (1) ◽  
pp. 204798161351016 ◽  
Author(s):  
Kazuhiro Shimizu ◽  
Nobuyuki Kosaka ◽  
Tatsuya Yamamoto ◽  
Hiroki Shioura ◽  
Toshiaki Kodera ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Arterial Spin Labeling ◽  
Spin Labeling ◽  
High Signal ◽  
Non Invasive ◽  
Signal Abnormality ◽  
Complete Obliteration ◽  
Long Term Follow Up

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.

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