MR protocol Scan plane: FOV: PFOV: Slice thickness: TR: ETL: Matrix: NEX: rBW: Frequency direction:
1 mm, 150 slices
320 x 256
Marcos Marins, MD
is the Director of the MRI Department at Centro
Radiologico Campinas, Hospital Vera Cruz.
The acquisition slab is placed oblique coronal along the
lumbar spine, extra slices are obtained to maintain SNR
and avoid edge slice artifacts. Increasing the reformat slice
thickness increases the apparent SNR. Using REFORMAT
for post-processing, the reformatted slice thickness can be
altered to the desired value and average or MIP can be used.
Multi-planar reconstruction using 3D Cube T2 weighted
images shows the right nerve roots enlargement (mainly in
L3, L4, and L5 levels). The findings were first suspected in the
6 mm sagittal T1 and confirmed by the isotropic images.
The MIP reconstruction also provides the information of
its extension and gives the clinician a panoramic view.
3D Cube isotropic imaging can be easily reconstructed into
any plane with the same resolution of the native plane,
resulting in a productivity gain. It is a short acquisition and
demonstrates excellent clinical utility for lumbar spine studies.
The high spatial resolution of this sequence is ideal for studying
nerve roots and its relationship to bone structures and discs.
MIP reconstruction and oblique/curved images also provide
useful information of the disease extension.
Cube is a 3D isotropic imaging technique with
sub-millimeter spatial resolution and excellent
contrast. 3D data from a single scan can be quickly
and easily reconstructed into any plane with the same
high resolution of the native plane. 3D Cube uses long
echo trains to reduce scan time and RF modulation
to reduce blurring.
Marcos Marins, MD, is the Director of the MRI Department at Centro Radiologico Campinas, Hospital Vera Cruz. He has practiced radiology with the group
since 2003. Dr. Marins’ areas of interest include research of brain tumors using 3D ASL and MRI studies of the central nervous system.
Centro Radiologico Campinas – Hospital Vera Cruz is a private practice facility created by a group of radiologists 40 years ago in Campinas, SP, Brazil.
It is considered a center of excellence, particularly in imaging of the body, prostate, vascular, and neurology. Today, Centro Radiologico Campinas has
become one of the most important diagnostic imaging centers in Brazil with three GE Healthcare MR scanners—a Signa* Excite 1.5 T, a Signa* HDxt 1.5 T
and a Discovery* MR750 3.0T—and two GE Healthcare CT scanners—a LightSpeed* Pro 16 and a LightSpeed* VCT 64.