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Publications (2)0 Total impact

  • Article: [Diagnosis of amyotrophic lateral sclerosis: advances in magnetic resonance imaging].
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    ABSTRACT: Amyotrophic lateral sclerosis is a chronic progressive neurodegenerative disease of unknown etiology. It selectively affects both upper and lower motor neurons. Nowadays, amyotrophic lateral sclerosis is diagnosed on the basis of clinical and electromyographic findings and by ruling out other diseases with similar symptoms. To date, there are no specific tests or biologic markers to confirm the diagnosis. This article discusses new MRI techniques like magnetization transfer imaging, MR spectroscopy, functional MRI, diffusion tensor imaging, and volumetric techniques that can contribute to early confirmation of the diagnosis and to the follow-up of this disease. We review the usefulness of each of these techniques and discuss their possible applications in clinical practice.
    Radiología 03/2011; 53(2):146-55.
  • Article: Agenesia unilateral de la arteria carótida interna
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    ABSTRACT: INTRODUCTION. Unilateral agenesis of the internal carotid artery is an extremely rare developmental anomaly (incidence: 0.01%). Diagnosis is often incidental in a radiological examination. Most of the cases described are in older patients with symptoms of cerebrovascular disorders. We review the anatomy, differential diagnosis and clinical implications of these malformations as the high prevalence of cerebral aneurysms. CASE REPORTS. We report the clinical and imaging findings of two cases of agenesis of the internal carotid artery, one on the right in a 4 years old female, and another on the left, in a 58 years old woman. CONCLUSIONS. High resolution CT to demonstrate the absence of the carotid canal at the skull base and angio-MR are the radiological proves used to confirm the diagnosis. Although many of these cases remain asymptomatic, their recognition has important implications, specially when we are planning carotid endarterectomy, because both cerebral hemispheres may be dependent upon the atheromatous carotid. Introducción. La agenesia unilateral de arteria carótida interna es una anomalía del desarrollo extremadamente rara (incidencia: 0,01%). Su diagnóstico generalmente es incidental durante la realización de una prueba radiológica. La mayoría de los casos descritos son sujetos adultos con síntomas de patología cerebrovascular. En este artículo revisamos la anatomía, el diagnóstico diferencial y las implicaciones clínicas de esta malformación, entre las que destaca una mayor prevalencia de aneurismas cerebrales. Casos clínicos. Presentamos dos casos de agenesia de arteria carótida interna, uno en el lado derecho en una niña de 4 años, y otro en el lado izquierdo en una mujer de 58 años. Conclusiones. La tomografía computarizada de alta resolución para demostrar la ausencia de canal carotídeo en la base del cráneo y la angiorresonancia magnética son las pruebas radiológicas utilizadas para confirmar su diagnóstico. Aunque la mayoría de los casos permanecen asintomáticos, su detección es fundamental cuando se plantea una cirugía de la carótida, ya que la vascularización de ambos hemisferios cerebrales puede depender de la carótida ateromatosa que vamos a tratar.
    Angiología, ISSN 0003-3170, Vol. 61, Nº. 4, 2009, pags. 213-217.