Overview of multimodal MRI of intracranial Dural arteriovenous fistulas

Chen, Xi; Ge, Liang; Wan, Hailin; Huang, Lei; Jiang, Yeqing; Lu, Gang; Zhang, Xiaolong

doi:10.1016/j.jimed.2022.04.004

Cited by 2 publications

(3 citation statements)

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“…Dural AFs are classified according to the venous drainage pattern, which reflects the severity. The Cognard classification system is a widely used scheme to determine the severity of dural fistulas and predict the risk for intracerebral hemorrhage [ 3 , 7 , 11 ]. Cognard et al [ 7 ] organize lesions into five types.…”

Section: Discussionmentioning

confidence: 99%

“…Dural arteriovenous fistulas (AVFs) are pathological continuations between the arteries and veins without an interposing capillary network within the dural folds [ 1 , 2 ]. Dural AVFs account for approximately 10–15 % of all intracranial vascular malformations [ 3 , 4 ]. The exact pathophysiology of dural AVFs is still obscure, with about 95 % of cases considered idiopathic [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…Headache, dizziness, tinnitus, chemosis, proptosis, cognitive impairment, and behavioral changes are all reported as presenting symptoms [ 6 , 7 ]. Digital subtraction angiography is the gold standard diagnostic imaging [ 3 ]. These fistulas are obliterated using endovascular embolization, surgical excision, or stereotactic radiotherapy [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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A rare case of multiple high-grade dural arteriovenous fistulas manifesting as progressive confusion and abnormal behavior

Sawafta,

Thalji,

Basal

et al. 2024

International Journal of Surgery Case Reports

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A rare case of multiple high-grade dural arteriovenous fistulas manifesting as progressive confusion and abnormal behavior

Sawafta,

Thalji,

Basal

et al. 2024

International Journal of Surgery Case Reports

View full text Add to dashboard Cite

The “Hypointense Focal Brain” on susceptibility-weighted imaging as a sign of venous congestion in cranial dural arteriovenous fistulas

Chen Zhou,

Hilario,

Salvador Álvarez

et al. 2024

Neuroradiol J

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Background Cranial dural arteriovenous fistulas (dAVFs) are complex neurovascular malformations accounting for approximately 10%–15% of all intracranial arteriovenous malformations. The objective is to investigate the utility of susceptibility-weighted imaging (SWI) in identifying “hypointense focal brain” as an additional helpful sign of venous congestion in cranial dAVFs. Materials and Methods A retrospective review of patients diagnosed with cranial dAVFs between January 2015 and June 2023 was conducted, and SWI was used to identify the “hypointense focal brain” sign within the venous drainage region of the dAVF. The “hypointense focal brain” on SWI was identified as a low-intensity signal within the venous drainage region, indicative of venous congestion. The presence of this imaging sign was assessed by two neuroradiologists and signal intensity measurements were performed to support the presence of the sign. Results The study included six patients with cranial dAVFs exhibiting cortical venous retrograde drainage and the “hypointense focal brain” on SWI. Follow-up imaging post-treatment revealed resolution or improvement of the hypointense signal, confirming its association with venous congestion. Signal intensity measurements further supported the presence of this imaging sign in pre-treatment scans. Conclusion The study’s findings demonstrate the presence of a reversible “hypointense focal brain” sign on SWI in patients with cranial dAVFs and CVR, which can be useful as an additional imaging sign for venous congestion.

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Overview of multimodal MRI of intracranial Dural arteriovenous fistulas

Cited by 2 publications

References 66 publications

A rare case of multiple high-grade dural arteriovenous fistulas manifesting as progressive confusion and abnormal behavior

A rare case of multiple high-grade dural arteriovenous fistulas manifesting as progressive confusion and abnormal behavior

The “Hypointense Focal Brain” on susceptibility-weighted imaging as a sign of venous congestion in cranial dural arteriovenous fistulas

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