Author + information
- Noriaki Iwahashi,
- Masaomi Gohbara,
- Kozo Okada,
- Nobuhiko Maejima,
- Mitsuaki Endo,
- Kengo Tsukahara,
- Yoshio Tahara,
- Kiyoshi Hibi,
- Masami Kosuge,
- Toshiaki Ebina,
- Satoshi Umemura and
- Kazuo Kimura
3D speckle tracking echocardiography (3D tracking) is a novel promising tool and it can assess twist motion accurately.
The study included 80 consecutive patients (65men, 65years, maxCPK=3123±3977IU/l) presenting with a first STEMI who underwent primary PCI within 12 hours of onset. Within 24 h of PCI, 2D and 3D speckle tracking echocardiography were performed by iE33 and Q-lab ver 8.1 (CMQ, Philips) and 4D LV-Analysis (TOM-TEC, Germany). Final infarct size was defined using Tc99m-sestamibi as the total area of <50%uptake area at 2 weeks. Echo was repeated 12 months later and LV remodeling was defined as an absolute increase in LVEDV of 20%.
Both twist and torsion estimated by 3 D speckle tracing echo had significant relationships with infarct size (rr=0.42,0.40, p=0.01, respectively). Furthermore, they could predict LV remodeling at 12 months(Twist: Odds ratio=1.103,95%CI 1.012-1.345, p<0.05, Torsion: Odds ratio=1.097,95%CI 1.009-1.278, p<0.05).
In patients with a first STEMI, decreased LV twisting motion assessed by 3D speckle tracking echocardiography immediately after PCI was asscoiated with final infarct size and can predict LV remodeling at 12 months.
Moderated Poster Contributions
Poster Sessions, Expo North
Saturday, March 09, 2013, 3:45 p.m.-4:30 p.m.
Session Title: Imaging: 3D Echocardiography
Abstract Category: 18. Imaging: Echo
Presentation Number: 1180M-339
- 2013 American College of Cardiology Foundation