期刊
MAGNETIC RESONANCE IN MEDICINE
卷 86, 期 3, 页码 1420-1433出版社
WILEY
DOI: 10.1002/mrm.28815
关键词
arterial nulling; cerebral blood volume; CSF suppression. velocity-selective pulse train; venous cerebral blood volume
资金
- National Institutes of Health [P41 EB015909, K25 HL145129, S10 OD021648, R01 HL138182, R01 HL144751]
- Scholar Award of American Society of Hematology
In this study, 3D MR1 methods were developed for cerebral blood volume (CBV) and venous cerebral blood volume (vCBV) estimation with whole-brain coverage using Fourier transform based velocity-selective (FT-VS) pulse trains. Results showed high correlation of CBV and vCBV values in gray and white matter in different brain regions among healthy volunteers. The feasibility of FT-VS-based CBV and vCBV estimation for 3D acquisition with large spatial coverage was demonstrated.
Purpose: To develop 3D MR1 methods for cerebral blood volume (CBV) and venous cerebral blood volume (vCBV) estimation with whole -brain coverage using Fourier transform based velocity -selective (FT -VS) pulse trains. Methods: For CBV measurement, FT -VS saturation pulse trains were used to suppress static tissue, whereas CSF contamination was corrected voxel-by-voxel using a multi -readout acquisition and a fast CSF T2 scan. The vCBV mapping was achieved by inserting an arterial -nulling module that included a FT -VS inversion pulse train. Using these methods, CBV and vCBV maps were obtained on 6 healthy volunteers at 3 T. Results: The mean CBV and vCBV values in gray matter and white matter in different areas of the brain showed high correlation (r = 0.95 and P <.0001). The averaged CBV and vCBV values of the whole brain were 5.4 0.6 mL/100 g and 2.5 0.3 mL/100 g in gray matter, and 2.6 0.5 mL/100 g and 1.5 0.2 mL/100 g in white matter, respectively, comparable to the literature. Conclusion: The feasibility of FT-VS -based CBV and vCBV estimation was demonstrated for 3D acquisition with large spatial coverage.
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