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CC BY-NC-ND 4.0 · Revista Argentina de Radiología / Argentinian Journal of Radiology 2019; 83(04): 141-150
DOI: 10.1055/s-0039-1696696
Artículo Original
Sociedad Argentina de Radiología. Publicado por Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

Análisis de las lesiones encefálicas en resonancia magnética en pacientes con señales transitorias de alta intensidad detectadas por Doppler transcraneal

Analysis of Encephalic Lesions in Magnetic Resonance Imaging in patients with High Intensity Transient Signals detected on Transcranial Doppler
Alberto Surur
1   Servicio de Diagnóstico por Imágenes, Sanatorio Allende, Córdoba, Argentina
,
Lucas M. Pessini Ferreira
1   Servicio de Diagnóstico por Imágenes, Sanatorio Allende, Córdoba, Argentina
,
Jorge A. Galíndez
1   Servicio de Diagnóstico por Imágenes, Sanatorio Allende, Córdoba, Argentina
,
Juan J. Martín
2   Servicio de Neurología, Sanatorio Allende, Córdoba, Argentina
› Author Affiliations
Further Information

Publication History

06 December 2017

30 July 2019

Publication Date:
20 December 2019 (online)

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Resumen

Objetivo Describir los hallazgos en resonancia magnética (RM) de encéfalo en pacientes menores de 65 años que fueron estudiados por Doppler transcraneal (DTC) con contraste de microburbujas, con antecedentes de accidente cerebrovascular (ACV) criptogénico y sospecha de foramen oval permeable (FOP).

Materiales y métodos Este estudio transversal retrospectivo incluyó pacientes de ambos sexos, menores de 65 años.

Resultados Nuestra muestra (n = 47, 47% masculino y 53% femenino, edad media de 42 años) presentó señales transitorias de alta intensidad (HITS, por su sigla en inglés) positivo en el 61,7% y HITS-negativo en el 38,3%. En pacientes HITS-positivo, predominaron las lesiones a nivel de las fibras en U subcorticales, únicas o múltiples con distribución bilateralmente simétrica. En pacientes con HITS moderados, predominaron las lesiones en el territorio vascular de la circulación posterior.

Conclusión En pacientes menores de 65 años con ACV criptogénico y lesiones en fibras en U subcorticales, únicas o múltiples con distribución bilateral y simétrica, debe tenerse en cuenta un FOP como posible causa de dichas lesiones.

Abstract

Objectives To analyze the findings on brain magnetic resonance imaging (MRI) in patients less than 65 years of age with history of cryptogenic stroke and suspected patent foramen ovale (PFO) who were studied with Contrast-Transcranial Doppler.

Materials and Methods This transversal retrospective study included both, men and women less than 65 years of age.

Results Our sample (n = 47, 47% male and 53% female, average age 42 years old) had High Intensity Transient Signals (HITS)-positive in 61.7% and HITS-negative in 38.3%. In HITS-positive patients, lesions were predominantly located on the subcortical U fibers, lone or multiple bilateral symmetric distributions. In patients with moderate-severity HITS, the posterior circulation was the most affected.

Conclusion In patients less than 65 years of age with cryptogenic stroke with lesions affecting the subcortical U fibers, with unique or multiple bilateral symmetric distributions, a PFO should be considered as an underlying cause.

Palabras clave

ultrasonografía Doppler transcraneal - imagen por resonancia magnética - foramen oval permeable

Keywords

transcranial Doppler ultrasonography - magnetic resonance imaging - patent foramen ovale

Protección de personas y animales

Los autores declaran que para esta investigación no se han realizado experimentos en seres humanos ni en animales.


Confidencialidad de los datos

Los autores declaran que en este artículo no aparecen datos de pacientes.


Derecho a la privacidad y consentimiento informado

Los autores declaran que en este artículo no aparecen datos de pacientes.


 

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