Imagerie scanner et IRM de l’encéphale après hémisphérotomie
| Autor: | G. Dorfumuller, F. Heran, O. Delalande, C. Bordonne |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Rasmussen's encephalitis
medicine.medical_specialty Radiological and Ultrasound Technology medicine.diagnostic_test business.industry medicine.medical_treatment Sturge–Weber syndrome Magnetic resonance imaging Hemosiderosis medicine.disease Surgery Hemispherectomy medicine.anatomical_structure medicine Polymicrogyria Radiology Nuclear Medicine and imaging Epilepsy surgery Neurology (clinical) Radiology Subdural space business |
| Zdroj: | Journal of Neuroradiology. 36:255-264 |
| ISSN: | 0150-9861 |
| DOI: | 10.1016/j.neurad.2009.02.001 |
| Popis: | Summary Purpose The aim of the study was to define the usual and pathological modifications arising in the brain following hemispherotomy for intractable epilepsy in children. Methods Preoperative MRI and postoperative imaging scans (CT in the first week, MRI at 3 months and 1 year after surgery) were reviewed in a series of 52 patients, average age 8 years and 7 months, with intractable epilepsy due to dysplasia, Rasmussen's encephalitis, ischemic lesions and/or Sturge-Weber disease. The posterior fossa, brain parenchyma, ventricles and subdural space were also analyzed. Results Hemispheric scarring was a typical finding on CT and MRI as a consequence of the surgical procedure. Also frequently seen were small subdural effusions, bleeding along the surgical scar on early CT, and chronic subdural effusions with no mass effect on mid-term and late MRI scans. Other features – such as large subdural effusions that required external shunts and hydrocephalus – were rare, but severe, and considered to be postoperative complications. In contrast to the complications associated with other surgical techniques such as hemispherectomy, infection, extensive edema or hemosiderosis were never found in our series. Conclusion Hemispherotomy is a surgical technique performed to treat intractable epilepsy. Our findings will help to identify the typical morphology of postsurgical scars, and to differentiate the usual features and complications seen in the postoperative period on CT and MRI brain scans. |
| Databáze: | OpenAIRE |
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