title: Turboprop: improved PROPELLER imaging.
abstract: A variant of periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) MRI, called turboprop, is introduced. This method employs an oscillating readout gradient during each spin echo of the echo train to collect more lines of data per echo train, which reduces the minimum scan time, motion-related artifact, and specific absorption rate (SAR) while increasing sampling efficiency. It can be applied to conventional fast spin-echo (FSE) imaging; however, this article emphasizes its application in diffusion-weighted imaging (DWI). The method is described and compared with conventional PROPELLER imaging, and clinical images collected with this PROPELLER variant are shown.
authors.affiliation: MRI Department, Barrow Neurological Institute, Phoenix, Arizona 85013, USA. jim.pipe@chw.edu
authors.forename: James G
authors.initials: JG
authors.lastname: Pipe
authors.forename: Nicholas
authors.initials: N
authors.lastname: Zwart
mesh_terms: D000465:Algorithms; D016477:Artifacts; D001931:Brain Mapping / Q000379:methods*; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods*; D012680:Sensitivity and Specificity; D020521:Stroke / Q000175:diagnosis