MRI of intracranial vertebral artery dissection: evaluation of intramural haematoma using a black blood, variable-flip-angle 3D turbo spin-echo sequence
| Autor: | Tooru Inoue, Shinnichi Yamashita, Koichiro Takemoto, Yasuo Kuwabara, Koichi Takano, Kengo Yoshimitsu |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Adult
Hematoma Epidural Cranial Male medicine.medical_specialty Vertebral artery dissection Sensitivity and Specificity Magnetic resonance angiography Imaging Three-Dimensional Hematoma Flip angle Image Interpretation Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging cardiovascular diseases Neuroradiology Vertebral Artery Dissection medicine.diagnostic_test business.industry Reproducibility of Results Magnetic resonance imaging Digital subtraction angiography Middle Aged Image Enhancement medicine.disease Cerebral Angiography Angiography Female Neurology (clinical) Radiology Cardiology and Cardiovascular Medicine business Algorithms Magnetic Resonance Angiography |
| Zdroj: | Neuroradiology. 55:845-851 |
| ISSN: | 1432-1920 0028-3940 |
| DOI: | 10.1007/s00234-013-1183-4 |
| Popis: | We investigated the efficacy of three-dimensional black blood T1-weighted imaging (3D-BB-T1WI) using a variable refocusing flip angle turbo spin-echo sequence in the diagnosis of intracranial vertebral artery dissection (VAD). Sixteen consecutive patients diagnosed with intracranial VAD underwent magnetic resonance imaging that included 3D time-of-flight-MRA, axial spin-echo T1-weighted images (SE-T1WI) and oblique coronal 3D-BB-T1WI sequences. The visualization, morphology and extent of intramural haematomas were assessed and compared among the sequences. Results obtained by digital subtraction angiography (DSA), 3D-angiography and/or 3D-CT angiography (CTA) were used as standards of reference. 3D-BB-T1WI revealed intramural haematomas in all cases, whereas SE-T1WI and magnetic resonance angiography (MRA) failed to reveal a haematoma in one case and three cases, respectively. The mean visualization grading score for the intramural haematoma was the highest for 3D-BB-T1WI, and there was a statistically significant difference among the sequences (p |
| Databáze: | OpenAIRE |
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