Added value of arterial spin-labeling (ASL) and susceptibility weighted-images (SWI) in detecting a mild symptomatic intracranial arteriovenous fistula

Pacheco, Felipe Torres; Allegro, Bruna Bianca; Padilha, Igor Gomes; Nunes, Renato Hoffmann; Rocha, Antônio José da

doi:10.1590/0004-282x20180056

Cited by 2 publications

(1 citation statement)

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“…The usage of ASL for dural AV fistula has also been described in the prior literature. 39 CNS infection, such as leptomeningitis or encephalitis, was another subgroup of patients in whom additional diagnostic findings were observed on ASL imaging compared with conventional MRI. The diagnosis was suggested based on the areas of leptomeningeal FLAIR hyperintensity with associated elevated CBF.…”

Section: Open Accessmentioning

confidence: 99%

Addition of arterial spin-labelled MR perfusion to conventional brain MRI: clinical experience in a retrospective cohort study

et al. 2020

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ObjectiveThe usage of arterial spin labelling (ASL) perfusion has exponentially increased due to improved and faster acquisition time and ease of postprocessing. We aimed to report potential additional findings obtained by adding ASL to routine unenhanced brain MRI for patients being scanned in a hospital setting for various neurological indications.DesignRetrospective.SettingLarge tertiary hospital.Participants676 patients.Primary outcomeAdditional findings from ASL sequence compared with conventional MRI.ResultsOur patient cohorts consisted of 676 patients with 257 with acute infarcts and 419 without an infarct. Additional findings from ASL were observed in 13.9% (94/676) of patients. In the non-infarct group, additional findings from ASL were observed in 7.4% (31/419) of patients, whereas in patients with an acute infarct, supplemental information was obtained in 24.5% (63/257) of patients.ConclusionThe addition of an ASL sequence to routine brain MRI in a hospital setting provides additional findings compared with conventional brain MRI in about 7.4% of patients with additional supplementary information in 24.5% of patients with acute infarct.

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Section: Open Accessmentioning

confidence: 99%