title: Three-dimensional black blood MR angiography of the liver during breath holding. A comparison with two-dimensional time-of-flight MR angiography.
abstract: In 2-D time-of-flight MR angiography (2-D TOF MRA) of the liver, artifacts caused by respiratory motion are unavoidable. Therefore, a 3-D black blood MRA of the liver was attempted in 7 healthy volunteers, using a 3-D gradient echo sequence which allows imaging during breath holding. 2-D TOF MRA was performed as well. In all subjects, 3-D MRA allowed visualization of the trunk, 1st-, and 2nd-order branches of the portal vein without interruption. Right 3rd-order branches were visualized without interruption in 6 of 7 subjects (85%). However, with 2-D MRA, the transverse portion of the left main portal vein could not be visualized in any subject, and the periphery of the portal vein was less clear than with 3-D MRA.
authors.affiliation: Department of Radiology, Tottori University School of Medicine, Yonago, and Siemens-Asahi Medical Technologies LTD., Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Suto
authors.forename: Y
authors.initials: Y
authors.lastname: Ohuchi
authors.forename: T
authors.initials: T
authors.lastname: Kimura
authors.forename: T
authors.initials: T
authors.lastname: Shirakawa
authors.forename: N
authors.initials: N
authors.lastname: Mizuuchi
authors.forename: O
authors.initials: O
authors.lastname: Takizawa
authors.forename: T
authors.initials: T
authors.lastname: Yamane
authors.forename: M
authors.initials: M
authors.lastname: Kamba
authors.forename: S
authors.initials: S
authors.lastname: Moriyama
authors.forename: Y
authors.initials: Y
authors.lastname: Ohta
mesh_terms: D000328:Adult; D000792:Angiography; D006801:Humans; D008099:Liver / Q000033:anatomy & histology* / Q000098:blood supply; D008279:Magnetic Resonance Imaging / Q000379:methods*; D012119:Respiration / Q000502:physiology*