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  Simultaneous acquisition of cerebral blood volume-, blood flow-, and blood oxygenation-weighted MRI signals at ultra-high magnetic field

Krieger, S., Huber, L., Poser, B. A., Turner, R., & Egan, G. F. (2015). Simultaneous acquisition of cerebral blood volume-, blood flow-, and blood oxygenation-weighted MRI signals at ultra-high magnetic field. Magnetic Resonance in Medicine, 74(2), 513-517. doi:10.1002/mrm.25431.

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https://onlinelibrary.wiley.com/doi/10.1002/mrm.25431 (Verlagsversion)
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 Urheber:
Krieger, Steffen1, 2, Autor           
Huber, Laurentius1, Autor           
Poser, Benedikt A.3, Autor
Turner, Robert4, Autor           
Egan, Gary F.2, Autor
Affiliations:
1Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634558              
2Monash Biomedical Imaging, Monash University, Melbourne, Australia, ou_persistent22              
3Maastricht Brain Imaging Centre, Maastricht University, the Netherlands, ou_persistent22              
4Department Neurophysics, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634550              

Inhalt

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Schlagwörter: Cerebral blood volume; Cerebral blood flow; BOLD; Ultra-high field; Vascular space occupancy; VASO; Functional MRI
 Zusammenfassung: Purpose

Yang et al. proposed an MRI technique for the simultaneous acquisition of cerebral blood volume (CBV), cerebral blood flow (CBF), and blood oxygenation level-dependent (BOLD)-weighted MRI signals (9). The purpose of this study was to develop modified version of the Yang sequence, which utilizes the advantages of 7 Tesla, leading to a robust and reliable MRI sequence.
Methods

The inversion recovery-based MR pulse sequence introduced here involves slice-saturation slab-inversion vascular space occupancy (SI-SS-VASO) MRI, double echo planar imaging readouts for arterial spin labeling, and VASO in order to correct for BOLD contamination, and a separate BOLD acquisition to minimize inversion effects on the BOLD signal. A standard visual stimulus block design was used to evaluate the spatial and temporal characteristics of CBV-, CBF-, and BOLD-weighted images.
Results

The high signal-to-noise ratio and spatial resolution of this method leads to robust activation maps. This technique enables the investigation of the differential spatial specificity and temporal characteristics of the different modalities.
Conclusion

The pulse sequence could be a powerful tool for studies of neurovascular coupling, hemodynamic response, or calibrated BOLD.

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Sprache(n): eng - English
 Datum: 2014-03-052014-08-072014-09-052015-08
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1002/mrm.25431
PMID: 25195774
Anderer: Epub 2014
 Art des Abschluß: -

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Titel: Magnetic Resonance in Medicine
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 74 (2) Artikelnummer: - Start- / Endseite: 513 - 517 Identifikator: ISSN: 0740-3194
CoNE: https://pure.mpg.de/cone/journals/resource/954925538149