title: Aortic aneurysm pulsatile wall motion imaged by cine MRI: a tool to evaluate efficacy of endovascular aneurysm repair?
abstract: OBJECTIVE
  to evaluate cine MRI as a means of determining the two-dimensional pulsatile wall motion (2D-PWM) of abdominal aortic aneurysm (AAA).
  
  
  METHODS
  prospective study of 21 patients with AAA. 2D-PWM was defined as change in cross-sectional area.
  
  
  RESULTS
  the median diastolic area was 28 cm(2) (intraquartile range, IQR, 22-31 cm(2)) and the median (IQR) 2D-PWM was 0.25 (0.10-0.40) cm(2). Assuming that the AAA is circular in cross-section this represents a median (IQR) diameter increase of 0.3 (0.1-0.4) mm. However, local wall displacements up to 2 mm were present in varying directions, without significant change in surface area.
  
  
  CONCLUSIONS
  AAA PWM is negligible and may not therefore be a potential tool to assess efficacy of endovascular aneurysm exclusion.
authors.affiliation: Department of Surgery, Vrije Universiteit Medical Center, Amsterdam, The Netherlands.
authors.forename: A W F
authors.initials: AW
authors.lastname: Vos
authors.forename: W
authors.initials: W
authors.lastname: Wisselink
authors.forename: J T
authors.initials: JT
authors.lastname: Marcus
authors.forename: R A
authors.initials: RA
authors.lastname: Manoliu
authors.forename: J A
authors.initials: JA
authors.lastname: Rauwerda
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000503:physiopathology* / Q000601:surgery*; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007089:Image Enhancement; D019028:Magnetic Resonance Imaging, Cine; D008297:Male; D008875:Middle Aged; D011673:Pulsatile Flow / Q000502:physiology*; D015203:Reproducibility of Results; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures