The role of Time-resolved CE-MRA in evaluation of intracranial dural arteriovenous fistulas

Dr Vo Phuong Truc1,, Dr Phan Cong Chien1, Dr Trần Quốc Tuấn1, Dr Trịnh Minh Tùng1, Dr Bui Thi Song Hanh1, Dr Tran Quang Vinh2, Dr Huynh Le Phuong2
1 Ho Chi Minh City University of Medicine and Pharmacy Hospital
2 Cho Ray Hospital

Main Article Content

Abstract

Objective: We evaluate the role of Time-resolved CE-MRA in diagnosis, localization, and detecting cortical venous drainage of intracranial dural arteriovenous fistula (DAVF) in comparison with Digital Subtraction Angiography
Subjects and methods: Prospective study between 1/2015 and 4/2019, 93 patients (35 male, 58 female), aged from 11 to 88 (mean 55), diagnosed of DAVF on conventional MRI, 55 of them had Time-resolved CE-MRA and then underwent DSA for confirming the diagnosis.
Results: In our study (n=55), Time-resolved CE-MRA showed high sensitivity, specificity, positive predictive value and negative predictive value in diagnosis of DAVF (98%, 100%, 100%, 83,3%, 98,2% respectively) and in detecting cortical venous drainage (80%, 96,67%, 95,23%, 85,29%, 89,09% respectively). Kappa coefficient showed very good agreement between Time-resolved CE-MRA and DSA in detecting the location of DAVF.
Conclusion: The use of Time-resolved CE-MRA is valuable in diagnosis, localization, and detecting cortical venous drainage of intracranial dural arteriovenous fistula (DAVF). This noninvasive examination would be helpful in choosing patients with DAVF, especially patients with high risk of complications for further cerebral angiography.

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References

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