title: Incidental magnetization transfer effects in multislice brain MRI at 3.0T.
abstract: OBJECTIVE
  To evaluate the effect of incidental magnetization transfer (iMT) in multislice brain imaging at 3.0T.
  
  
  METHODS
  The contribution of iMT to multislice brain MRI was evaluated at 3.0T. In 10 normal subjects we obtained multislice fast spin-echo (FSE) MR images using a 16-echo pulse train without an off-resonance MT pulse at 3.0T and 1.5T. We quantified the extent of iMT by calculating the iMT ratio (iMTR).
  
  
  RESULTS
  We found that the iMT contrast (iMTC) has a greater effect at 3.0T. As the number of slices increased in multislice FSE imaging, the difference between two field strengths became larger. Compared to WM structures, however, the difference in iMT effect between 1.5T and 3.0T was smaller in the case of GM structures.
  
  
  CONCLUSIONS
  The iMTC has a greater effect at 3.0T. The strength of the iMT is different for different tissue types and also varies according to the number of slices used.
authors.affiliation: Department of Diagnostic Radiology, Kyungpook National University College of Medicine, and Kyungpook National University Hospital, Daegu, Korea. ychang@knu.ac.kr
authors.forename: Yongmin
authors.initials: Y
authors.lastname: Chang
authors.forename: Sung Jin
authors.initials: SJ
authors.lastname: Bae
authors.forename: Young Ju
authors.initials: YJ
authors.lastname: Lee
authors.forename: Moon Jung
authors.initials: MJ
authors.lastname: Hwang
authors.forename: Sang Heun
authors.initials: SH
authors.lastname: Lee
authors.forename: Jongmin
authors.initials: J
authors.lastname: Lee
authors.forename: Sang Kwon
authors.initials: SK
authors.lastname: Lee
authors.forename: Seongku
authors.initials: S
authors.lastname: Woo
mesh_terms: D000328:Adult; D001921:Brain / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D012815:Signal Processing, Computer-Assisted