PMID- 18808697 OWN - NLM STAT- MEDLINE DCOM- 20081016 LR - 20240117 IS - 1532-429X (Electronic) IS - 1097-6647 (Print) IS - 1097-6647 (Linking) VI - 10 IP - 1 DP - 2008 Sep 22 TI - Comparison of cardiovascular magnetic resonance of late gadolinium enhancement and diastolic wall thickness to predict recovery of left ventricular function after coronary artery bypass surgery. PG - 41 LID - 10.1186/1532-429X-10-41 [doi] AB - BACKGROUND: The objective was to compare the value of late gadolinium enhancement (LGE) and end-diastolic wall thickness (EDWT) assessed by cardiovascular magnetic resonance (CMR) in predicting recovery of left ventricular function after coronary artery bypass surgery (CABG). METHODS: We enrolled patients with coronary artery disease and left ventricular ejection fraction < 45% who were scheduled for CABG. Regional contractility was assessed by cine CMR at baseline and 4 months after CABG. EDWT and LGE were assessed at baseline. Predictors for improvement of regional contractility were analyzed. RESULTS: We studied 46 men and 4 women with an average age of 61 years. Baseline left ventricular ejection fraction was 37 +/- 13%. A total of 2,020 myocardial segments were analyzed. Abnormal wall motion and the LGE area were detected in 1,446 segments (71.6%) and 1,196 segments (59.2%) respectively. Wall motion improvement was demonstrated in 481 of 1,227 segments (39.2%) that initially had wall motion abnormalities at baseline. Logistic regression analysis showed that the LGE area, EDWT and resting wall motion grade predicted wall motion improvement. Comparison of Receiver-Operator-Characteristic (ROC) curves demonstrated that the LGE area was the most important predictor (p < 0.001). Adding information from LGE to the EDWT can decrease the number of false predictions by EDWT alone from 483 to 127 segments. CONCLUSION: LGE and EDWT are independent predictors for functional recovery after revascularization. However, LGE appears to be a more important factor and independent of EDWT. FAU - Krittayaphong, Rungroj AU - Krittayaphong R AD - Department of Medicine, Division of Cardiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand. sirkt@mahidol.ac.th FAU - Laksanabunsong, Pansak AU - Laksanabunsong P FAU - Maneesai, Adisak AU - Maneesai A FAU - Saiviroonporn, Pairash AU - Saiviroonporn P FAU - Udompunturak, Suthipol AU - Udompunturak S FAU - Chaithiraphan, Vithaya AU - Chaithiraphan V LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080922 PL - England TA - J Cardiovasc Magn Reson JT - Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance JID - 9815616 RN - 0 (Contrast Media) RN - K2I13DR72L (Gadolinium DTPA) SB - IM MH - Adult MH - Aged MH - *Contrast Media MH - *Coronary Artery Bypass MH - Coronary Artery Disease/pathology/physiopathology/*surgery MH - Female MH - *Gadolinium DTPA MH - Heart Ventricles/*pathology/physiopathology MH - Humans MH - Image Enhancement MH - Logistic Models MH - *Magnetic Resonance Imaging, Cine MH - Male MH - Middle Aged MH - *Myocardial Contraction MH - Predictive Value of Tests MH - ROC Curve MH - Recovery of Function MH - Stroke Volume MH - Treatment Outcome MH - *Ventricular Function, Left PMC - PMC2561019 EDAT- 2008/09/24 09:00 MHDA- 2008/10/17 09:00 PMCR- 2008/09/22 CRDT- 2008/09/24 09:00 PHST- 2008/05/03 00:00 [received] PHST- 2008/09/22 00:00 [accepted] PHST- 2008/09/24 09:00 [pubmed] PHST- 2008/10/17 09:00 [medline] PHST- 2008/09/24 09:00 [entrez] PHST- 2008/09/22 00:00 [pmc-release] AID - S1097-6647(23)01258-9 [pii] AID - 1532-429X-10-41 [pii] AID - 10.1186/1532-429X-10-41 [doi] PST - epublish SO - J Cardiovasc Magn Reson. 2008 Sep 22;10(1):41. doi: 10.1186/1532-429X-10-41.