A Potential Diagnostic Pitfall in the Differentiation of Hemorrhagic and Fatty Lesions Using Short Inversion Time Inversion Recovery: a Case Report
Investigative Magnetic Resonance Imaging
;
: 181-184, 2016.
Artigo
em Inglês
| WPRIM
| ID: wpr-82808
ABSTRACT
Short inversion time inversion recovery (STIR) is widely used for spinal magnetic resonance imaging (MRI) because the pulse sequence of STIR is insensitive to magnetic field inhomogeneity and can be used to scan a large field of view. In this case report, we present a case of spinal epidural hematoma with unexpected signal decrease on a STIR image. The MRI showed an epidural mass that appeared with high signal intensity on both T1- and T2-weighted images. However, a signal decrease was encountered on the STIR image. This nonspecific decrease of signal in tissue with a short T1 relaxation time that is similar to that of fat (i.e., hemorrhage) could lead to a diagnostic pitfall; one could falsely diagnose this decrease of signal as fat instead of hemorrhage. Awareness of the nonselective signal suppression achieved with STIR pulse sequences may avert an erroneous diagnosis in image interpretation.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Relaxamento
/
Coluna Vertebral
/
Imageamento por Ressonância Magnética
/
Hematoma Epidural Espinal
/
Diagnóstico
/
Campos Magnéticos
/
Hemorragia
Tipo de estudo:
Estudo diagnóstico
Idioma:
Inglês
Revista:
Investigative Magnetic Resonance Imaging
Ano de publicação:
2016
Tipo de documento:
Artigo
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