Abstract
The criterion standard for assessing brain AVM obliteration postradiosurgery is DSA. To explore the value of susceptibility-weighted angiography, we followed 26 patients with brain AVMs treated by radiosurgery using susceptibility-weighted angiography and DSA. Studies were evaluated by 2 independent readers for residual nidi. Susceptibility-weighted angiography demonstrated good intermodality (κ = 0.71) and interobserver (κ = 0.64) agreement, and good sensitivity (85.7%) and specificity (85.7%). Susceptibility-weighted angiography is a useful radiation- and contrast material-free technique to follow-up brain AVM obliteration postradiosurgery.
Highlights
We aimed to evaluate the performance of Susceptibility-weighted angiography (SWAN) for the follow-up of patients with Brain AVMs (bAVMs) treated with stereotactic radiosurgery (SRS)
Patients imaged between March 2012 and May 2018 were included if they met the following criteria: 1) They had a bAVM treated by embolization and radiosurgery or radiosurgery only, 2) they were imaged during follow-up with SWAN at 1.5T or 3T and DSA, 3) both examinations were performed within a time interval of Ͻ6 months and without another treatment session in between, and 4) both examinations were performed at least 12 months after SRS
Interobserver Agreement For SWAN examinations, the 2 observers agreed on the existence of a residual nidus in 23 of 28 cases (82.1%), resulting in good interobserver agreement ( ϭ 0.64; 95% CI, 0.36 – 0.92) (Figs 2 and 3)
Summary
We aimed to evaluate the performance of SWAN for the follow-up of patients with bAVMs treated with SRS
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
