7 Tesla MRA for the differentiation between intracranial aneurysms and infundibula

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Fältnamn	Indikatorer	Metadata
000		04185naa a2200409 4500
001		oai:DiVA.org:umu-135669
003		SwePub
008		170602s2017 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1356692 URI
024	7	a https://doi.org/10.1016/j.mri.2016.11.0062 DOI
040		a (SwePub)umu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Wermer, Marieke J. H.u Departments of Neurology, Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands4 aut
245	1 0	a 7 Tesla MRA for the differentiation between intracranial aneurysms and infundibula
264	1	b Elsevier,c 2017
338		a print2 rdacarrier
520		a Objective: The differentiation between an aneurysm and an infundibulum with time-of-flight MRA is often difficult. However, this distinction is important because it affects further patient follow-up. The purpose of this study was to assess the added value of high resolution 7 Tesla MRA for investigating small vascular lesions suspect for an aneurysm or an infundibulum.Materials and methods: We included patients in whom an intracranial vascular lesion was detected in our University Hospital and in whom the discrimination between a true aneurysms or an infundibulum could not be made on conventional 1.5 or 3 T MRI were included in the study. All patients underwent an additional 7 T time-of-flight MRA at higher spatial resolution.Results: We included 6 patients. The age range of the patients was 35–65 years and 5 of them were women. 1 out of 6 had a 1.5 T MRI, the other 5 patients had a 3 T MRI previous to the 7 T MRI. The lesion size varied between 0.9 mm and 2.0 mm. In 5 of the 6 patients the presence of an infundibulum could be proven using the high resolution of the 7 T MRA. All patients tolerated the 7 T MRI well.Conclusion: Our results suggest that high resolution and contrast of 7 T MRA provides added diagnostic value in discriminating between intracranial aneurysms and infundibula. This finding may have important consequences for patient follow-up and comfort because it might reduce unnecessary follow-up exams and decrease uncertainty about the diagnosis. Larger studies, however, are needed to confirm our findings.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Radiologi och bildbehandling0 (SwePub)302082 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Radiology, Nuclear Medicine and Medical Imaging0 (SwePub)302082 hsv//eng
653		a Intracranial aneurysms
653		a Infundibula
653		a High resolution MRA
653		a 7 Tesla
653		a Time-of-flight MRA
653		a Radiology
653		a radiologi
700	1	a van Walderveen, Marianne A. A.u Departments of Radiology, Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands4 aut
700	1	a Garpebring, Andersu Umeå universitet,Radiofysik4 aut0 (Swepub:umu)anga0014
700	1	a van Osch, Matthias J. P.u Departments of Radiology, Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands; C.J. Gorter Center for High Field MRI of the Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands4 aut
700	1	a Versluis, Maarten J.u Departments of Radiology, Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands; C.J. Gorter Center for High Field MRI of the Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands4 aut
710	2	a Departments of Neurology, Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlandsb Departments of Radiology, Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands4 org
773	0	t Magnetic Resonance Imagingd : Elsevierg 37, s. 16-20q 37<16-20x 0730-725Xx 1873-5894
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-135669
856	4 8	u https://doi.org/10.1016/j.mri.2016.11.006

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