TY - JOUR T1 - NMR imaging in the recognition of giant intracranial aneurysms. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 835 LP - 836 VL - 4 IS - 3 AU - B S Worthington AU - D M Kean AU - R C Hawkes AU - G N Holland AU - W S Moore AU - R Corston Y1 - 1983/05/01 UR - http://www.ajnr.org/content/4/3/835.abstract N2 - Most giant aneurysms present clinically as intracranial mass lesions. Many contain an organized lamellated thrombus with only a small eccentric lumen remaining that can be opacified at angiography. Four patients with such aneurysms were studied using flow-dependent nuclear magnetic resonance scanning sequences. The aneurysms show a smooth rounded margin, and the thrombus within is clearly distinguishable from the blood flowing through the patent lumen, which gives a low signal. By using different scan sequences it is possible to prove that the area of low signal is indeed fluid in rapid motion, thus confirming the diagnosis. ER -