Dataset Information

High-resolution intracranial vessel wall MRI in an elderly asymptomatic population: comparison of 3T and 7T.

ABSTRACT:

Objectives

Several intracranial vessel wall sequences have been described in recent literature, with either 3-T or 7-T magnetic resonance imaging (MRI). In the current study, we compared 3-T and 7-T MRI in visualising both the intracranial arterial vessel wall and vessel wall lesions.

Methods

Twenty-one elderly asymptomatic volunteers were scanned by 3-T and 7-T MRI with an intracranial vessel wall sequence, both before and after contrast administration. Two raters scored image quality, and presence and characteristics of vessel wall lesions.

Results

Vessel wall visibility was equal or significantly better at 7 T for the studied arterial segments, even though there were more artefacts hampering assessment. The better visualisation of the vessel wall at 7 T was most prominent in the proximal anterior cerebral circulation and the posterior cerebral artery. In the studied elderly asymptomatic population, 48 vessel-wall lesions were identified at 3 T, of which 7 showed enhancement. At 7 T, 79 lesions were identified, of which 29 showed enhancement. Seventy-one percent of all 3-T lesions and 59 % of all 7-T lesions were also seen at the other field strength.

Conclusions

Despite the large variability in detected lesions at both field strengths, we believe 7-T MRI has the highest potential to identify the total burden of intracranial vessel wall lesions.

Key points

• Intracranial vessel wall visibility was equal or significantly better at 7-T MRI • Most vessel wall lesions in the cerebral arteries were found at 7-T MRI • Many intracranial vessel wall lesions showed enhancement after contrast administration • Large variability in detected intracranial vessel wall lesions at both field strengths • Seven-tesla MRI has the highest potential to identify total burden of intracranial atherosclerosis.

SUBMITTER: Harteveld AA

PROVIDER: S-EPMC5334422 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature

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Publications

High-resolution intracranial vessel wall MRI in an elderly asymptomatic population: comparison of 3T and 7T.

Harteveld Anita A AA van der Kolk Anja G AG van der Worp H Bart HB Dieleman Nikki N Siero Jeroen C W JCW Kuijf Hugo J HJ Frijns Catharina J M CJM Luijten Peter R PR Zwanenburg Jaco J M JJM Hendrikse Jeroen J

European radiology 20160707 4

<h4>Objectives</h4>Several intracranial vessel wall sequences have been described in recent literature, with either 3-T or 7-T magnetic resonance imaging (MRI). In the current study, we compared 3-T and 7-T MRI in visualising both the intracranial arterial vessel wall and vessel wall lesions.<h4>Methods</h4>Twenty-one elderly asymptomatic volunteers were scanned by 3-T and 7-T MRI with an intracranial vessel wall sequence, both before and after contrast administration. Two raters scored image qu ...[more]

PMID: 27387876

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Dataset Information

High-resolution intracranial vessel wall MRI in an elderly asymptomatic population: comparison of 3T and 7T.

Objectives

Methods

Results

Conclusions

Key points

Publications

High-resolution intracranial vessel wall MRI in an elderly asymptomatic population: comparison of 3T and 7T.

Similar Datasets

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