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GE Healthcare
Excellence in Body
Imaging with Optima*
MR450w GEM
Review of Abdomen
& Pelvic Clinical Cases
Body imaging is one of the fastest-growing areas in MR. Of all imaging modalities,
MR delivers the most comprehensive insight on anatomy, tissue, and function.
Imaging the abdomen and pelvis with MR with high and consistent image quality
used to be challenging. But not any more. GE designed new MR imaging techniques
to enhance patient comfort, workflow efficiency and ultimately, clinical confidence
for every examination.
Uncompromised
field of view
with GEM suite
Fast, Simple
& Easy workflow
Automated workflow with linking & Inline post-processing
Linking provides automatic graphic prescription by propagating slice
locations throughout the entire protocol.
• GEM Anterior Array provides 54 cm S/I anatomical coverage, taking
advantage of the magnet large FOV capabilities
• Embedded GEM Posterior Array provides 100 cm high-density total coverage
• Automatic selection of enabled elements in the posterior and anterior array
optimally match the prescribed FOV
• Uncompromised 50 cm FOV allows large coronal coverage in one take;
especially important for imaging large patients
“
The GEM solution delivers
higher signal to noise,
shorter exam times, and
improved image quality in
all anatomies... All my staff is
amazed by the speed
and workflow of GEM!
„
JM Pinon, Imaging Manager
GIE IRM Creil
Inline post-processing provides automatic calculation of parametric maps,
reformats, pasted and binded series for simplified workflow and reporting.
Detachable Express patient table
Fully prepare patients for exams outside the scan room on the detachable
Express patient table with up to 227 kg weight capacity. Save valuable time
by transferring in-patients only once to help reduce anxiety and increase
scanner productivity.
IntelliTouch strips pinpoint patient positioning
Easy-to-use IntelliTouch strips help enable fast, accurate landmarking.
Simply press the IntelliTouch strip at the landmark location, and directly
move the patient into the bore.
Auto Voice guides patient breathing
Auto Voice provides breath-hold instructions in the patient’s native language
during the scan. Create new or modify existing messages to fit the patient needs.
“
In our radiology department of Prince Philip Hospital Llaneli South Wales, we are impressed with
the speed and diagnostic quality of the images produced by the Optima MR450w GEM scanner.
We are also finding the patient experience relative to previous mri equipment is very positive.
Dr Andy Richards,
Consultant Radiologist Prince Philip Hospital, UK
„
LAVA
POWER &
PRECISION WITH
the LAVA Suite
High spatial resolution
Focal nodular hyperplasia
imaging of multiple
imaged with LAVA Flex
hemangiomas with Lava Flex and PROPELLER
a
a
b
c
d
Abdominal imaging
with uncompromised FOV
a
b
c
d
Shorter scans with no misregistration
Offering excellent coverage and reliability,
the LAVA 3D FSPGR acquisition affords
a single breath-hold scan with 1D or 2D
acceleration to shorten scan times.
LAVA optimizes the waveform for short
TE/TR, and utilizes an ARC 2D selfcalibrating parallel technique to help
elimination misregistration.
LAVA Flex
Obtain four image contrasts
with greater SNR in a single, fast,
one-breath-hold acquisition
LAVA Flex is a 3D FSPGR imaging
technique that generates water-only,
fat-only, in-phase, and out-of-phase
images in one single acquisition, typically
completed in a single 20 s breath-hold.
This innovative technique provides 3D
images with excellent homogeneous fat
suppression over the entire field of view.
e
b
In a single breath-hold,
LAVA Flex improves
the visualization
of small lesions,
and makes it possible
to reformat the 3D
dataset into any
slice orientation with
an almost isotropic
resolution (courtesy
Dr Khouri, Policlinico
di Monza, Italy).
a- LAVA Flex Water image,
TR 6.2 ms, TE 3.1 ms,
resolution 1.43x1.87x1.9 mm3,
19 s
b- Cor and Sag reformats from
LAVA Flex axial acquisition (a)
a- PROPELLER T2w fat sat with Resp.Trig.,
TR 12000 ms, TE 86.7 ms, resolution
1.18x1.18x6 mm3, 4 min 48 s
b & c - LAVA Flex Water image, TR
6.3 ms, TE 3.1 ms, resolution
1.31x1.87x1.7 mm3, 19 s
d- eDWI b200 with Resp.Trig.,TR 10000,
TE 76.1 ms, resolution
2.3x1.7x6 mm3, 3 min 20 s
e- ADC map calculated from (d)
Follow up liver exam of a FNH and multiple adenomas.
The FNH located in the left lobe shows slight hypersignal
on the PROPELLER T2w (a), while on the LAVA Flex
the enhancement in the arterial phase (b) is lobulated with
no enhancing septation. On the equilibrium phase (c) the lesion
is not different from normal liver parenchyma. The adenoma
located in the segment II shows the same enhancement
pattern, while the DWI image shows higher signal but same
ADC value than the FNH. Notice the clear fat suppression with
the Special adiabatic fat saturation pulse used on the eDWI
sequence (d) (courtesy GIE IRM du Bassin Hyérois, France).
The large FOV of 50 cm covered by the Anterior Array coil (AA),
combined with the Posterior Array coil (PA) makes it possible
to scan the liver and the small bowel in the same acquisition.
Cube (a) and LAVA Flex (b) provide high resolution images (3D)
for the evaluation of oncologic and inflammatory diseases,
while Fiesta 2D (c & d) provide dynamic information on the
motility of the small bowel (courtesy GIE IRM Creil, France).
a-Cube T2w, TR 5998 ms with RT, TE 139 ms, resolution 1.25x1.92x1 mm3, 3 min 37 s
b-LAVA Flex Water image, TR 6,5 ms, TE 3.2 ms, resolution 1.25x1.92x1.4 mm3, 22 s
c-Fiesta, TR 4.1 ms, TE 1.9 ms, resolution 1.87x1.31x6.5 mm3, 14 s
d-LAVA Flex Water image, TR 6,5 ms, TE 3.2 ms, resolution 1.25x1.92x1.4 mm3, 22 s
a
b
Dynamic multi-arterial
liver imaging with
LAVA & LAVA Flex
The LAVA Suite sequences (LAVA & LAVA Flex) extends
the possibilities of liver dynamic exam: the short duration
of the sequence allows the acquisition of several volumetric
datasets within a single breath hold time, while covering
the whole liver at high spatial resolution.
This clinical case presents the benefit of a multi arterial
acquisition (2 phases) for the detection of secondary liver
lesions from a primary thyroid tumor.
c
POWER &
PRECISION WITH
the LAVA Suite
High spatial resolution
Focal nodular hyperplasia
imaging of multiple
imaged with LAVA Flex
hemangiomas with Lava Flex and PROPELLER
a
c
d
e
b- arterial phase 2 of LAVA Flex Water image
c-late phase of LAVA Flex Water image, TR 6.2 ms, TE 3.1 ms,
resolution 1.11x1.42x0.8 mm3, 22 s
d- PROPELLER T2w with fat sat, Respiratory triggered (RT),
resolution 0.81x0.81x7 mm3, 3 min 16 s
e
b
The early arterial phase of the LAVA Flex acquisition (a),
clearly depicts several lesions in the liver and the lung
(arrow heads), while the liver lesions became less visible
on the later arterial phase 2 (b), and practically invisible
on the late phase (c).
They are also clearly identified on the PROPELLER T2w (d)
and DWI images (e) (courtesy GIE IRM Creil, France).
a- arterial phase 1 of LAVA Flex Water image, TR 6.2 ms, TE 3.1 ms,
resolution 1.43x1.9x1.9 mm3, 11 s per phase
d
a
e- DWI b800 RT with Special fat sat, resolution 2.12x1.51x7 mm3 2 min 42
b
In a single breath-hold,
LAVA Flex improves
the visualization
of small lesions,
and makes it possible
to reformat the 3D
dataset into any
slice orientation with
an almost isotropic
resolution (courtesy
Dr Khouri, Policlinico
di Monza, Italy).
a- LAVA Flex Water image,
TR 6.2 ms, TE 3.1 ms,
resolution 1.43x1.87x1.9 mm3,
19 s
b- Cor and Sag reformats from
LAVA Flex axial acquisition (a)
Abdominal imaging
with uncompromised FOV
a
b
c
d
a- PROPELLER T2w fat sat with Resp.Trig.,
TR 12000 ms, TE 86.7 ms, resolution
1.18x1.18x6 mm3, 4 min 48 s
b & c - LAVA Flex Water image, TR
6.3 ms, TE 3.1 ms, resolution
1.31x1.87x1.7 mm3, 19 s
d- eDWI b200 with Resp.Trig.,TR 10000,
TE 76.1 ms, resolution
2.3x1.7x6 mm3, 3 min 20 s
e- ADC map calculated from (d)
Follow up liver exam of a FNH and multiple adenomas.
The FNH located in the left lobe shows slight hypersignal
on the PROPELLER T2w (a), while on the LAVA Flex
the enhancement in the arterial phase (b) is lobulated with
no enhancing septation. On the equilibrium phase (c) the lesion
is not different from normal liver parenchyma. The adenoma
located in the segment II shows the same enhancement
pattern, while the DWI image shows higher signal but same
ADC value than the FNH. Notice the clear fat suppression with
the Special adiabatic fat saturation pulse used on the eDWI
sequence (d) (courtesy GIE IRM du Bassin Hyérois, France).
The large FOV of 50 cm covered by the Anterior Array coil (AA),
combined with the Posterior Array coil (PA) makes it possible
to scan the liver and the small bowel in the same acquisition.
Cube (a) and LAVA Flex (b) provide high resolution images (3D)
for the evaluation of oncologic and inflammatory diseases,
while Fiesta 2D (c & d) provide dynamic information on the
motility of the small bowel (courtesy GIE IRM Creil, France).
a-Cube T2w, TR 5998 ms with RT, TE 139 ms, resolution 1.25x1.92x1 mm3, 3 min 37 s
b-LAVA Flex Water image, TR 6,5 ms, TE 3.2 ms, resolution 1.25x1.92x1.4 mm3, 22 s
c-Fiesta, TR 4.1 ms, TE 1.9 ms, resolution 1.87x1.31x6.5 mm3, 14 s
d-LAVA Flex Water image, TR 6,5 ms, TE 3.2 ms, resolution 1.25x1.92x1.4 mm3, 22 s
PROPELLER 3.0
Overcome patient motion, flow,
and susceptibility artifacts anywhere
PROPELLER 3.0 significantly reduces
the effect of patient voluntary and
physiologic motion such as breathing,
flow, and peristalsis, while also reducing
magnetic susceptibility artifacts.
Compared to conventional MR imaging
techniques, PROPELLER 3.0 generates
virtually artifact-free images with fine
anatomic detail and excellent tissue
contrast—all in a free-breathing acquisition
and in about the same scan time as
conventional T2w acquisition.
INnovations for
consistent image
Quality
High resolution imaging of a rectal
polyp with T2w PROPELLER 3.0
a
The excellent spatial resolution of the T2w PROPELLER
sequence and the absence of motion artifacts
from peristalsis allows you to depict clear details
such as this well defined 4 cm polyp in mid rectum.
No breaching of the muscularis propria layer
or spread to the mesorectal fat is seen.
c
b
“
The images of this rectal polyp are
illustrative of the quality we have obtained
routinely
„
Dr Andy Richards, Consultant Radiologist
Prince Philip Hospital, UK
Cube
a, b, c- PROPELLER T2w, TR 6583 ms, TE 106 ms,
resolution 0.87x0.87x4 mm3, 2 min 28 s
Scan once then view any way you want
High-resolution volumetric T2w body
scans with Cube can be reformatted to
the desired planes for further evaluation.
eDWI
Motion artifact-free imaging of a complex
pelvic cyst with T2w PROPELLER
Enhanced DWI. Designed to maximize
SNR, shorten scan times, and generate
an accurate ADC map
The uterine junctional zone is clearly depicted with
an excellent T2w contrast, showing an homogeneous
myometrium. The cystic pelvic mass demonstrated
several loculi which are in favour of an epithelial
tumour of mucinous type (courtesy GIE IRM du Bassin
Hyérois, France).
The enhanced Diffusion Weighted Imaging
(eDWI) technique is designed to provide
high signal-to-noise ratio diffusion images
of the body in short-acquisition times.
eDWI supports multiple b values in one
acquisition with flexible control of NEX for
each b value. Novel diffusion techniques,
3in1, and tetrahedral allow applying
gradients in multiple directions to improve
scan efficiency and signal-to-noise ratio.
a & b- PROPELLER T2w, TR 6316 ms, TE 124 ms, resolution 0.75x0.75x3.5
mm3, 4 min 19 s
c- PROPELLER T2w, TR 6201 ms, TE 122 ms, resolution 0.75x0.75x3.5 mm3,
4 min 14 s
a
b
c
High contrast
resolution with
T2w PROPELLER
The uterine junctional zone appears thickened
and globular with an excellent T2w contrast (a, b),
with no evidence of myomas. Moreover, there are
several Nabothian cysts, the one close to the cervix appears
haemorrhagic. There is no enhancement
defect on the 3D T1w image after contrast injection (c, d),
which implies no additional lesion within the cervix.
a
“
The T2w PROPELLER sequence provides an excellent
contrast between the different layers of the uterus,
and can be acquired in any orientation with the same
image quality.
„
Dr D’Anthouard, GIE IRM Creil, France
b
INnovations for
consistent image
Quality
High resolution imaging of a rectal
polyp with T2w PROPELLER 3.0
a
The excellent spatial resolution of the T2w PROPELLER
sequence and the absence of motion artifacts
from peristalsis allows you to depict clear details
such as this well defined 4 cm polyp in mid rectum.
No breaching of the muscularis propria layer
or spread to the mesorectal fat is seen.
c
b
“
The images of this rectal polyp are
illustrative of the quality we have obtained
routinely
a- PROPELLER T2w, TR 7730,
TE 114 ms, resolution
0.76x0.76x3.5 mm3,
2 min 15 s
„
Dr Andy Richards, Consultant Radiologist
Prince Philip Hospital, UK
b- PROPELLER T2w,
TR 6387 ms, TE 126 ms,
resolution 0.78x0.78x4 mm3,
4 min 22 s
a, b, c- PROPELLER T2w, TR 6583 ms, TE 106 ms,
resolution 0.87x0.87x4 mm3, 2 min 28 s
c&d- 3D T1w image post
contrast, TR 6,4 ms,
TE 3.1 ms, resolution
1x1.33x1 mm3,
2 min 40 s
Motion artifact-free imaging of a complex
pelvic cyst with T2w PROPELLER
c
d
The uterine junctional zone is clearly depicted with
an excellent T2w contrast, showing an homogeneous
myometrium. The cystic pelvic mass demonstrated
several loculi which are in favour of an epithelial
tumour of mucinous type (courtesy GIE IRM du Bassin
Hyérois, France).
a & b- P
ROPELLER T2w, TR 6316 ms, TE 124 ms, resolution 0.75x0.75x3.5
mm3, 4 min 19 s
c- PROPELLER T2w, TR 6201 ms, TE 122 ms, resolution 0.75x0.75x3.5 mm3,
4 min 14 s
a
b
c
Data subject to change.
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