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Journal of the American Society of Nephrology, Vol 7, 2135-2141, Copyright © 1996 by American Society of Nephrology

REGULAR ARTICLES

Follow-up of intracranial aneurysms in autosomal dominant polycystic kidney disease by magnetic resonance angiography

J Huston 3rd, VE Torres, DO Wiebers and WI Schievink
Department of Diagnostic Radiology, Mayo Clinic, Rochester, MN 55905, USA.

The purpose of this study was to assess the value of magnetic resonance angiography (MRA) in the follow-up of patients with autosomal dominant polycystic kidney disease (ADPKD) and saccular intracranial aneurysms (ICA), the risk of MRA-defined growth of asymptomatic incidental ICA, and the rate of development of MRA-defined de novo ICA in these patients. Between 1989 and 1995, 15 asymptomatic incidental ICA measuring 1.5 to 6.5 mm in diameter, three symptomatic aneurysms, and one asymptomatic concurrent aneurysm were detected by MRA in this study in 18 patients from 15 families. Four-vessel cerebral angiography in the three patients with symptomatic ICA and autopsy in one patient with an asymptomatic incidental ICA did not reveal additional aneurysms undetected by MRA. Thirty MRA studies were obtained in 10 of the 15 patients with incidental ICA during a cumulative clinical follow-up of 500 months (mean, 33.3; range, 0 to 65 months). The cumulative interval between the initial and the last MRA was 306 months (mean, 30.6; range, 14 to 51 months). No change in aneurysmal size or development of de novo aneurysms was detected. Eight MRA studies were obtained in the three patients with symptomatic ICA during a cumulative clinical follow- up of 130 months (mean, 43.3; range, 23 to 64 months). The cumulative interval between the first and the last MRA was 95 months (mean, 31.7; range, 15 to 49 months). Development of de novo aneurysms was not detected. These results indicate that MRA is an appropriate technique to follow small asymptomatic incidental ICA in patients with ADPKD and that the risk for rapid growth of these aneurysms is low. Although the results of this study should be viewed as preliminary, they do not suggest a higher rate of development of de novo aneurysms or a higher frequency of multiple aneurysms in patients with ADPKD and ICA as compared with patients with sporadic ICA in the general population.


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 J. Am. Soc. Nephrol.Home page
Y. Pirson, D. Chauveau, and V. Torres
Management of Cerebral Aneurysms in Autosomal Dominant Polycystic Kidney Disease
J. Am. Soc. Nephrol., January 1, 2002; 13(1): 269 - 276.
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