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2016, Number 2

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Anales de Radiología México 2016; 15 (2)

T2 gradient echo sequence versus susceptibility-weighted angiography sequence in detecting microhemorrhages in hypertensive patients

Torres-Gómez E, Onofre-Castillo JJ, Santana-Vela IA, Hernández-Salazar JJ, García-Concha A, Martínez-Aparicio JS, Cuituny-Romero AK

Language: Spanish
References: 24
Page: 94-102
PDF size: 476.02 Kb.


ABSTRACT

Introduction: cerebral microhemorrhages are deposits of hemosiderin in small blood vessels produced by microangiopathic processes and represent a risk for the development of strokes; in magnetic resonance they appear as rounded focal areas with lack of signal.
Objetive: compare T2 gradient echo and SWAN (susceptibilityweighted angiography) magnetic resonance sequences in describing cerebral microhemorrages in hypertensive patients.
Material and Methods: a transverse, descriptive, observational study in a group of hypertensive patients admitted to Hospital Christus Muguerza Alta Especialidad de Monterrey and who underwent magnetic resonance.
Results: fifty-seven patients were included (35 men and 22 women) with mean age of 63 years. Seventeen had microhemorrhages detected with susceptibility-weighted angiography (SWAN) sequence and 15 with T2 gradient echo sequence, the majority with lobar localization. On comparing the procedures one-to-one, the SWAN showed a larger number of microhemorrhages.
Conclusion: both sequences are useful to detect the presence, localization, and degree of cerebral microhemorrhages, but the susceptibilityweighted angiography sequence proved to be more useful in detecting the total number of microhemorrhages.


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