Access the full text.
Sign up today, get DeepDyve free for 14 days.
Loading next page...
/lp/american-journal-of-neuroradiology/loss-of-digitations-of-the-hippocampal-head-on-high-resolution-fast-aoV5voRak4
References
References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.
- Publisher
- American Journal of Neuroradiology
- Copyright
- Copyright © 2010 by the American Society of Neuroradiology.
- ISSN
- 0195-6108
- eISSN
- 1936-959X
- Publisher site
- See Article on Publisher Site
Abstract
This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Oppenheim, C. Articles by Marsault, C. Search for Related Content PubMed PubMed Citation Articles by Oppenheim, C. Articles by Marsault, C. Hotlight (NEW!) What's Hotlight? American Journal of Neuroradiology, Vol 19, Issue 3 457-463, Copyright © 1998 by American Society of Neuroradiology ARTICLES Loss of digitations of the hippocampal head on high-resolution fast spin-echo MR: a sign of mesial temporal sclerosis C Oppenheim, D Dormont, A Biondi, S Lehericy, D Hasboun, S Clemenceau, M Baulac and C Marsault Department of Neuroradiology, Groupe Hospitalier Pitie-Salpetriere, Paris VI University, France. PURPOSE: The purpose of our study was to determine the significance of the loss of visualization of digitations in the hippocampal head on high-resolution fast spin-echo MR images in the diagnosis of mesial temporal sclerosis (MTS). METHODS: MR examinations of 193 patients with intractable epilepsy were evaluated retrospectively for atrophy and/or T2 signal changes of the hippocampi. On the basis of these two criteria, MTS was diagnosed in 63 hippocampi. Twenty-four patients had surgery, and MTS was confirmed in all cases. A control group included 60 hippocampi in patients with frontal seizures but no MR-detectable abnormalities. In a second step, visibility of digitations in the hippocampal head was evaluated in the two groups of subjects. RESULTS: In the group of 63 hippocampi in which MTS was diagnosed, digitations were not visible in 51 cases, poorly visible in eight, and sharply visible in four. Twenty-two of 24 hippocampi in which MTS was confirmed histologically had no MR-visible digitations. In the control group, digitations were sharply visible in 55 cases and poorly visible in five. Statistical analysis showed a significant difference in the visualization of digitations between hippocampi with MTS and those in the control group. CONCLUSION: With a sensitivity of 92% and a specificity of 100%, the finding of complete loss of digitations in the hippocampal head may be used as a major diagnostic criterion to establish the MR diagnosis of MTS. This morphologic sign may also be useful in the diagnosis of bilateral MTS or to validate the MR diagnosis of MTS when there is no obvious atrophy or changes in signal intensity. This article has been cited by other articles: J von Oertzen, H Urbach, S Jungbluth, M Kurthen, M Reuber, G Fernandez, and C E Elger Standard magnetic resonance imaging is inadequate for patients with refractory focal epilepsy J. Neurol. Neurosurg. Psychiatry, December 1, 2002; 73(6): 643 - 647. Abstract Full Text PDF J. von Oertzen, H. Urbach, I. Blumcke, M. Reuber, F. Traber, T. Peveling, C. Menzel, and C. E. Elger Time-efficient T2 relaxometry of the entire hippocampus is feasible in temporal lobe epilepsy Neurology, January 22, 2002; 58(2): 257 - 264. Abstract Full Text PDF R. E. Hogan, K. E. Mark, L. Wang, S. Joshi, M. I. Miller, and R. D. Bucholz Mesial Temporal Sclerosis and Temporal Lobe Epilepsy: MR Imaging Deformation-based Segmentation of the Hippocampus in Five Patients Radiology, July 1, 2000; 216(1): 291 - 297. Abstract Full Text R. I. Grossman BRAIN IMAGING AJNR Am. J. Neuroradiol., January 1, 2000; 21(1): 9 - 18. Full Text PDF Home Subscribe Author Instructions Submit Online Search the AJNR Archives Feedback Help Copyright © 2010 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X
Journal
American Journal of Neuroradiology – American Journal of Neuroradiology
Published: Mar 1, 1998