title: The magnetic resonance Matas test: Feasibility and comparison with the conventional intraarterial balloon test occlusion with SPECT perfusion imaging.
abstract: OBJECTIVE
  To evaluate a new MR Matas test that uses a form of contrast-enhanced MR angiography (MRA) with temporary manual occlusion of the common carotid artery whose internal carotid artery (ICA) is to be permanently sacrificed.
  
  
  METHODS
  The MR Matas test was performed on eight patients using an open type MR imager (Signa Profile 0.2 Tesla ver. 7.5, GE-YMS, Tokyo, Japan). Conventional balloon occlusion Matas test and single-photon emission computed tomography (SPECT) of the brain were performed in all cases within a week before or after the MR Matas test.
  
  
  RESULTS
  The MR Matas test was successful in all eight patients without any complications. The image quality of the MR Matas test was generally sufficient to confirm cross-flow from the patent side to the occluded side in comparison with selective intraarterial digital subtraction angiography (IADSA) except in one case.
  
  
  CONCLUSIONS
  Brain perfusion information using MR Matas test is comparable to brain SPECT.
authors.affiliation: Department of Radiology, University of Yamanashi, Yamanashi, Japan. masahori-tky@umin.ac.jp
authors.forename: Masaaki
authors.initials: M
authors.lastname: Hori
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Okubo
authors.forename: Shigeki
authors.initials: S
authors.lastname: Aoki
authors.forename: Keiichi
authors.initials: K
authors.lastname: Ishigame
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Araki
authors.forename: Hideaki
authors.initials: H
authors.lastname: Nukui
mesh_terms: D000368:Aged; D021721:Balloon Occlusion; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging*; D002560:Cerebrovascular Circulation; D003097:Collateral Circulation; D005240:Feasibility Studies; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D019275:Radiopharmaceuticals; D019690:Technetium Tc 99m Exametazime; D015899:Tomography, Emission-Computed, Single-Photon
chemical_list: D019275:Radiopharmaceuticals; D019690:Technetium Tc 99m Exametazime