Imaging Findings of Brain Death on 3-Tesla MRI
Korean Journal of Radiology
;
: 541-549, 2012.
Article
in English
| WPRIM
| ID: wpr-228981
ABSTRACT
OBJECTIVE:
To demonstrate the usefulness of 3-tesla (3T) magnetic resonance imaging (MRI) including T2-weighted imaging (T2WI), diffusion weighted imaging (DWI), time-of-flight (TOF) magnetic resonance angiography (MRA), T2*-weighted gradient recalled echo (GRE), and susceptibility weighted imaging (SWI) in diagnosing brain death. MATERIALS ANDMETHODS:
Magnetic resonance imaging findings for 10 patients with clinically verified brain death (group I) and seven patients with comatose or stuporous mentality who did not meet the clinical criteria of brain death (group II) were retrospectively reviewed.RESULTS:
Tonsilar herniation and loss of intraarterial flow signal voids (LIFSV) on T2WI were highly sensitive and specific findings for the diagnosis of brain death (p < 0.001 and < 0.001, respectively). DWI, TOF-MRA, and GRE findings were statistically different between the two groups (p = 0.015, 0.029, and 0.003, respectively). However, cortical high signal intensities in T2WI and SWI findings were not statistically different between the two group (p = 0.412 and 1.0, respectively).CONCLUSION:
T2-weighted imaging, DWI, and MRA using 3T MRI may be useful for diagnosing brain death. However, SWI findings are not specific due to high false positive findings.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Brain Death
/
Magnetic Resonance Imaging
/
Image Interpretation, Computer-Assisted
/
Retrospective Studies
/
Sensitivity and Specificity
/
Magnetic Resonance Angiography
/
Diffusion Magnetic Resonance Imaging
/
False Positive Reactions
Type of study:
Diagnostic study
/
Observational study
Limits:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
Language:
English
Journal:
Korean Journal of Radiology
Year:
2012
Type:
Article
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