title: Identification of peripheral vessels in oral and maxillofacial regions on magnetic resonance angiography obtained using a balanced steady-state free-precession sequence with a time-spatial labeling inversion pulse and using fresh blood imaging.
abstract: OBJECTIVE
  To elucidate the characteristics of visualizing thin main peripheral vessels in oral and maxillofacial regions of 3-dimensional magnetic resonance angiography (MRA) using a balanced steady-state free-precession (SSFP) sequence with a time-spatial labeling inversion pulse (time-SLIP) and using fresh blood imaging (FBI).
  
  
  METHODS
  The conspicuity of blood vessels and the characteristics on MRA using SSFP with a time-SLIP was compared with those on MRA using FBI in 20 healthy participants.
  
  
  RESULTS
  The conspicuity of the main peripheral arteries was significantly higher on MRA using SSFP with a time-SLIP than on MRA using FBI. MRA scans using SSFP were obtained in all participants, and scans using FBI were obtained in 16 of 20 participants. An electrocardiogram was unnecessary when using SSFP but was necessary when using FBI.
  
  
  CONCLUSIONS
  MRA obtained using SSFP with a time-SLIP is a useful technique to visualize thin main peripheral arteries in the oral and maxillofacial regions without contrast medium.
authors.affiliation: Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Oda
authors.forename: Tatsurou
authors.initials: T
authors.lastname: Tanaka
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Yamashita
authors.forename: Shinji
authors.initials: S
authors.lastname: Kito
authors.forename: Nao
authors.initials: N
authors.lastname: Wakasugi-Sato
authors.forename: Shinobu
authors.initials: S
authors.lastname: Matsumoto-Takeda
authors.forename: Shun
authors.initials: S
authors.lastname: Nishimura
authors.forename: Manabu
authors.initials: M
authors.lastname: Habu
authors.forename: Masaaki
authors.initials: M
authors.lastname: Kodama
authors.forename: Masataka
authors.initials: M
authors.lastname: Uehara
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Kaneuji
authors.forename: Shinya
authors.initials: S
authors.lastname: Kokuryo
authors.forename: Ikuya
authors.initials: I
authors.lastname: Miyamoto
authors.forename: Daigo
authors.initials: D
authors.lastname: Yoshiga
authors.forename: Yuji
authors.initials: Y
authors.lastname: Seta
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Tominaga
authors.forename: Izumi
authors.initials: I
authors.lastname: Yoshioka
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Morimoto
mesh_terms: D000328:Adult; D001158:Arteries; D055424:Cardiac-Gated Imaging Techniques; D005260:Female; D006257:Head / Q000098:blood supply*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D009333:Neck / Q000098:blood supply*