June 6, 2013 - Siemens Healthcare announced that
the U.S. Food and Drug Administration (FDA) recently approved new magnetic resonance (MR) software
that reduces patient MR breath-hold up to 50% without sacrificing image
resolution, enabling ultra-fast, high-quality 3-dimensional (3D) T1 imaging.
The company’s CAIPIRINHA (Controlled Aliasing in
Volumetric Parallel Imaging Results IN Higher Acceleration) software is part of
Siemens’ syngo MR D13A software package for parallel MR imaging.
we got CAIPIRINHA our breath hold typically ran from 18 to 24 seconds on the
sequences that CAIPIRINHA applies to, and we’ve been able to reduce some of the
sequences down to about 14 seconds or less for 3D T1 sequences,” said Mustafa R.
Bashir, MD, Director of MRI, Assistant Professor of Radiology, Division of
Abdominal Imaging, Department of Radiology, Duke University Medical Center.
25-second breath hold without CAIPIRINHA,
with motion from patient unable to hold breath.
7-second breath hold with CAIPIRINHA (no motion).
“For arterial phases in the abdomen, we do three
fast 3D T1w acquisitions in a single breath hold in order to provide some
redundancy in the passage of the contrast bolus. That triple phase sequence was
traditionally as long as 25 to 28 seconds and was relatively low-resolution,
and we have been able to reduce it to 23 seconds for 3 images with higher
resolution. The image quality and sharpness has clearly improved,” said Dr.
Bashir. “So for most VIBE sequences, we have taken the speed advantage and used
that to provide an easier breath hold for the patient.”
Siemens’ CAIPIRINHA software enables acquisition of
higher-quality 3D volumetric interpolated breath-hold sequence (VIBE) T1 images
through higher acceleration factors. CAIPIRINHA software is included as
standard with Siemens’ D13A software for
MAGNETOM Aera 1.5 Tesla, MAGNETOM Skyra 3T, MAGNETOM Avanto 1.5T, and MAGNETOM
Verio 3T systems. It is also available with Siemens’ D14 software for the
MAGNETOM Essenza 1.5T system.
For more information: usa.healthcare.siemens.com and www.appliedradiology.com