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1.5T Left atrium and pulmonary vein late enhancement - Beth Israel Deaconess

ExamCard
Peters, Dana, Ph.D. Boston, Beth Israel Deaconess Medical Center USA

1.5T Left atrium and pulmonary vein late enhancement - Beth Israel Deaconess Medical Center

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ExamCard description

This Achieva 1.5T Release 2.6.3 ExamCard was made for imaging left atrium and pulmonary vein late gadolinium enhancement at Beth Israel Deaconess Medical Center, Boston, MA, USA.

The ExamCard was designed for imaging atrial fibrillation patients before and after a pulmonary vein isolation procedure, to determine  the presence of scar in the left atrium and pulmonary vein ostia.

ExamCard overview


During 1st pass of contrast agent, an MRA of the left atrium is acquired (protocol not provided).  Our site uses 0.2 mmol/kg of Gd-DTPA.

After injection (preferably >15 minutes post) the Look Locker is acquired in a 4 chamber view, and the TI which nulls normal LV myocardium is chosen.

The 3D LGE LA and PV sequence acquires high resolution 3D late gadolinium enhancement images of scar.  Change the inversion time and trigger delay (or choose "longest") and prescribe an axial volme covering the LA, and a NAV on the right hemi-diaphragm.  See ExamCard for tips.

ExamCard image

 Example of LGE in a atrial fibrillation patient imaged >30 days after pulmonary vein isolation.
Example of LGE in a atrial fibrillation patient imaged >30 days after pulmonary vein isolation.

While scar is visible after pulmonary vein isolation, the clinical value of the images is not known.


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May 27, 2010

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ExamCard
Achieva 1.5T
Release 2.6
Nova, Nova Dual, Pulsar
Cardiac, Function Non-Cine, Pulmonary Vein
 

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