title: Myocardial perfusion assessed by contrast echocardiography correlates with angiographic perfusion parameters in patients with a first acute myocardial infarction successfully treated with angioplasty.
abstract: BACKGROUND
  Angiographic flow in an epicardial artery does not define perfusion at the microvascular level.
  
  
  OBJECTIVE
  To compare myocardial contrast echocardiography (MCE) with angiographic methods of assessing microvascular reperfusion in patients with acute myocardial infarction (AMI).
  
  
  METHODS
  One hundred consecutive patients with a first ST segment elevation myocardial infarction and single-vessel disease were successfully treated with primary percutaneous coronary intervention. Regional contrast score index (RCSI), corrected Thrombolysis In Myocardial Infarction (TIMI) frame count (cTFC), TIMI myocardial perfusion grade (TMPG) and myocardial blush grade were evaluated.
  
  
  RESULTS
  Among 717 asynergic segments on MCE, 168 revealed a lack of perfusion. TMPG and cTFC correlated significantly with RCSI (P=0.031 and P=0.027, respectively). Myocardial blush grade did not correlate with RCSI (P=0.067). Patients with anterior AMI had significantly more segments with a perfusion defect on MCE than patients with inferior AMI (P=0.0001).
  
  
  CONCLUSIONS
  MCE results correlate with angiographic methods of perfusion assessment such as TMPG and cTFC. Anterior AMI is associated with a greater extent of perfusion defect. MCE results correlate also with recovery of systolic left ventricular function and clinical outcome at six month follow-up.
authors.affiliation: Department of Cardiology, University Hospital in Bialystok, Poland. walkaz@poczta.fm
authors.forename: Anna
authors.initials: A
authors.lastname: Tomaszuk-Kazberuk
authors.forename: Bozena
authors.initials: B
authors.lastname: Sobkowicz
authors.forename: Karol
authors.initials: K
authors.lastname: Kaminski
authors.forename: Kamil
authors.initials: K
authors.lastname: Gugala
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Mezynski
authors.forename: Slawomir
authors.initials: S
authors.lastname: Dobrzycki
authors.forename: Anna
authors.initials: A
authors.lastname: Lewczuk
authors.forename: Waldemar
authors.initials: W
authors.lastname: Kazberuk
authors.forename: Wlodzimierz J
authors.initials: WJ
authors.lastname: Musial
mesh_terms: D000328:Adult; D000368:Aged; D000418:Albumins; D015906:Angioplasty, Balloon, Coronary; D002932:Cineangiography; D003131:Combined Modality Therapy; D003287:Contrast Media / Q000008:administration & dosage; D017023:Coronary Angiography; D003326:Coronary Circulation / Q000502:physiology*; D023903:Coronary Restenosis / Q000175:diagnosis* / Q000503:physiopathology; D004452:Echocardiography; D005260:Female; D005466:Fluorocarbons; D005500:Follow-Up Studies; D006801:Humans; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted; D008297:Male; D008833:Microcirculation / Q000502:physiology; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D009203:Myocardial Infarction / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D012680:Sensitivity and Specificity; D015607:Stents; D013318:Stroke Volume / Q000502:physiology; D016896:Treatment Outcome; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis / Q000503:physiopathology
chemical_list: D000418:Albumins; D003287:Contrast Media; C099458:FS 069; D005466:Fluorocarbons