Imaging features of intracranial aneurysms on magnetic resonance 3 Tesla

Dao Quang Anh1, Tran Anh Tuan2, Dr Vu Dang Luu2
1 Hanoi Medical University
2 Dien Quang Center, Bach Mai Hospital

Main Article Content

Abstract

Objective: Describe the imaging characteristics of an intracranial aneurysm on 3 Tesla magnetic resonance at Bach Mai hospital


Methods: A prospective study was performed on 29 patients with clinical manifestations of neuropathy who were diagnosed with 3 Tesla magnetic resonance brain aneurysms and then underwent digital subtraction angiography at the Radiology Center, Bach Mai Hospital, Hanoi, Vietnam from August 2021 to August 2022. Description of intracranial aneurysms in terms of number, location, shape, morphology and size measure.


Results: Of the 29 patients, 37 aneurysms were detected on 3 tesla magnetic resonance and confirmed on digital subtraction angiography. The location of intracranial aneurysms is common in the anterior circulation (97.29%), and the posterior circulation (2.71%). Dimensions are mainly ≤ 10mm (97.3%). Usually saccular aneurysms (94.6%) and narrow neck (51.43%). Most aneurysms have irregular margins, knobs or two bases (72.97%).


Conclusion: Magnetic resonance 3 Tesla can replace digital subtraction angiography erasing the background to characterize the image of intracranial aneurysms. This is a safe, non-invasive and highly valuable imaging method in the diagnosis of intracranial aneurysms, a very effective first choice for screening intracranial aneurysms and providing information for neurologists implement appropriate treatment strategies.


 

Article Details

References

1. Housepian E. M. and Pool J. L. A Systematic Analysis of Intracranial Aneurysms from the Autopsy File of the Presbyterian Hospital, 1914 to 1956. J Neuropathol Exp Neurol, 1958; 17(3): P. 409-23.
2. Bracard S, Anxionnat R, Picard L. Current Diagnostic Modalities for Intracranial Aneurysms. Neuroimaging Clin N Am. 2006;16(3):397-411. doi:10.1016/j.nic.2006.05.002.
3. Willinek WA, Born M, Simon B, et al. Time-of-Flight MR Angiography: comparison of 3.0-T Imaging and 1.5-T Imaging-Initial Experience. Radiology. 2003;229(3):913–920.
4. G. F. Gibbs, J. Huston, M. A. Bernstein, S. J. Riederer, and R. D. Brown, “Improved Image Quality of Intracranial Aneurysms: 3.0-T versus 1.5-T Time-of-Flight MR Angiography,” American Journal of Neuroradiology, Vol. 25, No. 1, Pp. 84–87, 2004.
5. Trần Anh Tuấn. “Nghiên cứu giá trị chẩn đoán phình động mạch não bằng máy cắt lớp vi tính 64 dãy”. Luận văn tốt nghiệp bác sỹ nội trú bênh viện, trường Đại học Y Hà Nội. 2008.
6. Nguyễn An Thanh. “Giá trị ứng dụng của hai phương pháp chụp cắt lớp vi tính mạch máu và cộng hưởng từ mạch máu để đánh giá túi phình động mạch não”. Luận án tiến sĩ, trường Đại Học Y Dược Thành Phố Hồ Chí Minh. 2016.
7. White PM, Teasdale EM, Wardlaw JM, Easton V. Intracranial Aneurysms: CT Angiography and MR Angiography for Detection—Prospective Blinded Comparison in a Large Patient Cohort. Radiology. 2001;219(3):739-749. doi:10.1148/radiology.219.3.r01ma16739
8. Vega C, Kwoon JV, Lavine SD. Intracranial Aneurysms: Current Evidence and Clinical Practice. afp. 2002;66(4):601-609.
9. Wiebers DO. Unruptured intracranial aneurysms: natural history, clinical outcome, and risks of surgical and endovascular treatment. The Lancet. 2003;362(9378):103-110. doi:10.1016/S0140-6736(03)13860-3
10. UCAS Japan Investigators, Morita A, Kirino T, et al. The natural course of unruptured cerebral aneurysms in a Japanese cohort. N Engl J Med. 2012;366(26):2474-2482. doi:10.1056/NEJMoa1113260
11. Vũ Đăng Lưu. “Nhận Xét Bước Đầu Điều Trị Can Thiệp Nội Mạch Phình Mạch Não”. Luận Văn Tốt Nghiệp Bác Sỹ Nội Trú Bênh Viện, Trường Đại Học Y Hà Nội. 2005.
12. Backes D, Vergouwen MDI, Velthuis BK, et al. Difference in Aneurysm Characteristics Between Ruptured and Unruptured Aneurysms in Patients With Multiple Intracranial Aneurysms. Stroke. 2014;45(5):1299-1303. doi:10.1161/STROKEAHA.113.004421
13. Bijlenga P, Gondar R, Schilling S, et al. PHASES Score for the Management of Intracranial Aneurysm: A Cross-Sectional Population-Based Retrospective Study. Stroke. 2017;48(8):2105-2112. doi:10.1161/STROKEAHA.117.017391
14. Samaniego EA, Roa JA, Hasan D. Vessel wall imaging in intracranial aneurysms. J NeuroIntervent Surg. 2019;11(11):1105-1112. doi:10.1136/neurintsurg-2019-014938