Download CLINICAL CASE - Oncology Follow-up - Revolution

GE Healthcare
Case study
Pancreatitis follow-up
on young patient
with Revolution* EVO
Marc ZINS
Head of Radiology service
Groupe Hospitalier
Paris Saint Joseph
Paris, France
Pancreatitis follow-up on
young patient with Revolution* EVO
About the institution
• Private charity hospital providing
public medical attention and services.
• 612 beds and places
• 5 clinical or medical technology
centers
• Certified by the French National
Health Authority in 2010
Patient history
Results
A young man in his 20s with testicular cancer was referred to
CT for follow-up of post-surgery pancreatitis after a lumboaortic lymphadenectomy, with hepatic metastasectomy.
Optima CT660
Enabling Technologies
Revolution EVO
These 2 exams have been scanned within one week.
Acquisition
Optima CT660
Revolution EVO
Helical
Helical
kV
120
100
BMI
24
24
IR
ASiR
ASiR-V
DLP (mGy.cm)
1074
412
CTDi (mGy) S1 arterial
CTDi (mGy) S2 portal
7.9
12.2
4.5
4.9
Acquisition mode
For Revolution EVO, we redesigned the
entire imaging chain using the new
Clarity detector inherited from the
innovative technology introduced on
Revolution CT.
ASiR-V
ASiR-V comes standard and focuses
primarily on more advanced noise and
object modeling with added physics
modeling to help reduce noise, improve
low-contrast detectability, and reduce
artifacts.
• Routinely image with up to 82% less
dose1,2. Combining the speed of
ASiR* with added capabilities from
Veo* full model-based iterative
reconstruction, the novel ASiR-V*
iterative reconstruction algorithm
brings low dose and improved image
quality to routine imaging.
“
In this young patient who will need repeat follow-up
CT exams for both pancreatitis and testicular cancer, the
main challenge is the cumulated dose that this patient will
receive over the years.
• Up to 100% better spatial resolution1.
ASiR-V has the capability to improve
spatial resolution compared to FBP
by allowing the reconstruction of
higher-resolution images with no
increase in image noise.
Thanks to high capabilities of dose reduction with ASiR-V,
we were able to dramatically decrease PDL and CTDi ,
without compromise in image quality.
Dr. Marc Zins
Clarity Imaging System:
”
Conclusion
The significant dose reduction using the new generation
of iterative reconstruction ASiR-V, allowed the customer
to manage dose for the follow-up of this young patient,
with high image quality and less than half CT dose.
• Up to 135% improved low-contrast
detectability1. ASiR-V improves the
detectability of low-contrast objects
by up to 135% when compared to
corresponding FBP reconstructions
at the same dose.
• Up to 91% less image noise1.
Depending upon the scan technique
and reconstruction parameters,
ASiR-V can significantly reduce
electronic image noise compared to
FBP at the same dose.
• Less streak artifact1. ASiR-V has the
capability to reduce low-signal
artifact, such as streak artifact,
compared to FBP.
About GE Healthcare
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enhanced quality and more affordable
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technologies and performance
improvement solutions, GE Healthcare
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©2014 General Electric Company — All rights reserved.
General Electric Company reserves the right to make changes in specification and features shown herein, or discontinue the product described at any time without
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GE, the GE Monogram and imagination at work are trademarks of General Electric Company.
GE Healthcare, a division of General Electric Company.
*Trademark of General Electric Company.
The clinical cases are displayed for educational purposes only and for the benefit of healthcare students and professionals
Low contrast detectability (LCD), image noise, spatial resolution and artifact were assessed using reference factory protocols comparing ASiR-V and FBP. The LCD
measured in 0.625-mm slices and tested for both head and body modes using the MITA CT IQ Phantom (CCT183, The Phantom Laboratory), using model observer
method.
1
Image quality as defined by low contrast detectability. In clinical practice, the use of ASiR-V may reduce CT patient dose depending on the clinical task, patient size,
anatomical location,and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic
image quality for the particular clinical task.
2 Legal Mentions : The system is intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission projection data from the
same axial plane taken at different angles. The system has the capability to image whole organs in a single rotation. Whole organs include but are not limited to brain,
heart, liver, kidney, pancreas, etc..
The system may acquire data using Axial, Cine, Helical, Cardiac, and Gated CT scan techniques from patients of all ages. These images may be obtained either with or
without contrast. This device may include signal analysis and display equipment, patient and equipment supports, components and accessories.
Class: IIb – Manufacturer: GE Medical Systems LLC, USA – LNE/G-MED #37618.
JB28002XX