Limitations of magnetic resonance imaging and magnetic resonance angiography in the diagnosis of intracranial aneurysms

Neurosurgery
Kristin E SchwabRafael J Tamargo

Abstract

Magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) are being used with increasing frequency for the diagnosis of intracranial aneurysms. Although the literature suggests that MRI and MRA are accurate, we have observed that both are associated with a high likelihood of false-positive results in the diagnosis of aneurysms. We prospectively evaluated and compared the accuracy of MRI/MRA versus digital subtraction angiography (DSA) for the diagnosis of intracranial aneurysms. Over the course of 2 years, 133 patients diagnosed with one or more unruptured intracranial aneurysms by MRI/MRA were prospectively evaluated in an outpatient setting. The patients were advised to undergo cerebral four-vessel DSA, and the results from DSA were compared with MRI/MRA findings. In 59% of cases, the DSA and MRI/MRA findings were markedly different. Specifically, in 38% of MRI/MRA-positive cases, DSA findings were completely normal, showing no aneurysms. In an additional 21% of cases, although DSA confirmed the presence of an aneurysm, it differed substantially from MRI/MRA findings in terms of aneurysm location, number of aneurysms, or aneurysm type. In general, the false-positive aneurysms by MRI/MRA were smaller than 5 mm ...Continue Reading

References

Jul 1, 1990·AJR. American Journal of Roentgenology·J S RossW R Selman

❮ Previous
Next ❯

Citations

Jul 4, 2012·Pituitary·Satoru OshinoYouichi Saitoh
Apr 16, 2011·Nursing·Wendi Pope Rank
Nov 10, 2011·Journal of Pediatric Neurosciences·V R K Rao, S N Mathuriya
Dec 12, 2012·World Neurosurgery·Gustavo PradillaRafael J Tamargo
Dec 12, 2012·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·He ZhangGui Zhang
Apr 21, 2016·Translational Research : the Journal of Laboratory and Clinical Medicine·Ziad A HageFady T Charbel
Aug 5, 2015·Current Cardiology Reports·Ann Liu, Judy Huang
Dec 3, 2014·Journal of Neuroradiology. Journal De Neuroradiologie·Benjamin MineBoris Lubicz
May 15, 2012·Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association·Ameer E HassanAdnan I Qureshi
Jun 15, 2016·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Lara WalkoffDavid F Kallmes
Mar 31, 2017·Artificial Cells, Nanomedicine, and Biotechnology·Roberto SalviRalph Santos-Oliveira
Jun 3, 2018·Journal of the American Heart Association·Ryan J Felling, Richard E Ringel
Oct 16, 2016·Circulation·Walter R WilsonUNKNOWN American Heart Association Committee on Rheumatic Fever, Endocarditis, and Kawasaki Disease of the Council on Cardiovascular
Sep 27, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Dahan KimKevin M Johnson
Aug 2, 2019·Journal of Pediatric Endocrinology & Metabolism : JPEM·Elif GündoğduMahmut Kebapçı
Apr 12, 2011·Nursing Management·Wendi Pope Rank
Dec 29, 2018·Somatosensory & Motor Research·Hafiz Khuram RazaGuiyun Cui
Mar 16, 2021·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Xinke LiuYouxiang Li

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aneurysm

Aneurysms are outward distensions or bulges that occurs in a weakened wall of blood vessels. Discover the latest research on aneurysms here.