title: Rapid T1 estimation using tagged magnetization-prepared gradient-echo MR imaging.
abstract: A technique for estimation of the longitudinal relaxation time of a large homogeneous object with an acquisition time of 4 s or less was developed by combining spatially selective rf tagging pulses with a T1-weighted magnetization-prepared gradient-echo sequence. Multiple 5-mm-wide tagged areas are laid orthogonal to the imaging section of interest. The contrast between each tag and the untagged regions differs because each tag is produced at a different time. The T1 value is determined from the nulling time at which tagged and untagged areas have no contrast.
authors.affiliation: Department of Radiology, University of Tsukuba, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Niitsu
authors.forename: N G
authors.initials: NG
authors.lastname: Campeau
authors.forename: S J
authors.initials: SJ
authors.lastname: Riederer
authors.forename: I
authors.initials: I
authors.lastname: Anno
authors.forename: Y
authors.initials: Y
authors.lastname: Itai
mesh_terms: D000273:Adipose Tissue / Q000033:anatomy & histology; D001853:Bone Marrow / Q000033:anatomy & histology; D003300:Copper; D019327:Copper Sulfate; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007866:Leg / Q000033:anatomy & histology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008961:Models, Structural; D009132:Muscles / Q000033:anatomy & histology; D012815:Signal Processing, Computer-Assisted; D013977:Tibia / Q000033:anatomy & histology
chemical_list: D003300:Copper; D019327:Copper Sulfate