PMID- 25772155
OWN - NLM
STAT- MEDLINE
DCOM- 20161017
LR  - 20181113
IS  - 1522-2594 (Electronic)
IS  - 0740-3194 (Print)
IS  - 0740-3194 (Linking)
VI  - 75
IP  - 2
DP  - 2016 Feb
TI  - Modified wideband three-dimensional late gadolinium enhancement MRI for patients 
      with implantable cardiac devices.
PG  - 572-84
LID - 10.1002/mrm.25601 [doi]
AB  - PURPOSE: To study the effects of cardiac devices on three-dimensional (3D) late 
      gadolinium enhancement (LGE) MRI and to develop a 3D LGE protocol for implantable 
      cardioverter defibrillator (ICD) patients with reduced image artifacts. THEORY 
      AND METHODS: The 3D LGE sequence was modified by implementing a wideband 
      inversion pulse, which reduces hyperintensity artifacts, and by increasing 
      bandwidth of the excitation pulse. The modified wideband 3D LGE sequence was 
      tested in phantoms and evaluated in six volunteers and five patients with ICDs. 
      RESULTS: Phantom and in vivo studies results demonstrated extended signal void 
      and ripple artifacts in 3D LGE that were associated with ICDs. The reason for 
      these artifacts was slab profile distortion and the subsequent aliasing in the 
      slice-encoding direction. The modified wideband 3D LGE provided significantly 
      reduced ripple artifacts than 3D LGE with wideband inversion only. Comparison of 
      3D and 2D LGE images demonstrated improved spatial resolution of the heart using 
      3D LGE. CONCLUSION: Increased bandwidth of the inversion and excitation pulses 
      can significantly reduce image artifacts associated with ICDs. Our modified 
      wideband 3D LGE protocol can be readily used for imaging patients with ICDs given 
      appropriate safety guidelines are followed.
CI  - (c) 2015 Wiley Periodicals, Inc.
FAU - Rashid, Shams
AU  - Rashid S
AD  - Department of Radiological Sciences, David Geffen School of Medicine, University 
      of California, Los Angeles, California, USA.
FAU - Rapacchi, Stanislas
AU  - Rapacchi S
AD  - Department of Radiological Sciences, David Geffen School of Medicine, University 
      of California, Los Angeles, California, USA.
FAU - Shivkumar, Kalyanam
AU  - Shivkumar K
AD  - Department of Radiological Sciences, David Geffen School of Medicine, University 
      of California, Los Angeles, California, USA.
AD  - UCLA Cardiac Arrhythmia Center, David Geffen School of Medicine, University of 
      California, Los Angeles, California, USA.
FAU - Plotnik, Adam
AU  - Plotnik A
AD  - Department of Radiological Sciences, David Geffen School of Medicine, University 
      of California, Los Angeles, California, USA.
FAU - Finn, J Paul
AU  - Finn JP
AD  - Department of Radiological Sciences, David Geffen School of Medicine, University 
      of California, Los Angeles, California, USA.
AD  - Biomedical Physics Inter-Departmental Graduate Program, University of California, 
      Los Angeles, California, USA.
FAU - Hu, Peng
AU  - Hu P
AD  - Department of Radiological Sciences, David Geffen School of Medicine, University 
      of California, Los Angeles, California, USA.
AD  - Biomedical Physics Inter-Departmental Graduate Program, University of California, 
      Los Angeles, California, USA.
LA  - eng
GR  - R01 HL084261/HL/NHLBI NIH HHS/United States
GR  - R21 HL118533/HL/NHLBI NIH HHS/United States
GR  - 1R21HL118533/HL/NHLBI NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
DEP - 20150313
PL  - United States
TA  - Magn Reson Med
JT  - Magnetic resonance in medicine
JID - 8505245
RN  - 0 (Contrast Media)
RN  - K2I13DR72L (Gadolinium DTPA)
SB  - IM
MH  - Artifacts
MH  - Contrast Media
MH  - *Defibrillators, Implantable
MH  - Gadolinium DTPA
MH  - Humans
MH  - Image Enhancement/methods
MH  - Imaging, Three-Dimensional/methods
MH  - Magnetic Resonance Imaging/*methods
MH  - Phantoms, Imaging
MH  - Signal-To-Noise Ratio
PMC - PMC4661130
MID - NIHMS738375
OTO - NOTNLM
OT  - Three dimensional late gadolinium enhancement
OT  - delayed enhancement
OT  - hyperintensity artifact
OT  - implantable cardiac devices
OT  - implantable cardioverter defibrillator
OT  - metal artifact reduction
OT  - wideband inversion
EDAT- 2015/03/17 06:00
MHDA- 2016/10/19 06:00
PMCR- 2016/02/01
CRDT- 2015/03/17 06:00
PHST- 2014/05/15 00:00 [received]
PHST- 2014/12/11 00:00 [revised]
PHST- 2014/12/13 00:00 [accepted]
PHST- 2015/03/17 06:00 [entrez]
PHST- 2015/03/17 06:00 [pubmed]
PHST- 2016/10/19 06:00 [medline]
PHST- 2016/02/01 00:00 [pmc-release]
AID - 10.1002/mrm.25601 [doi]
PST - ppublish
SO  - Magn Reson Med. 2016 Feb;75(2):572-84. doi: 10.1002/mrm.25601. Epub 2015 Mar 13.