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8/6/2019 Vessel View
http://slidepdf.com/reader/full/vessel-view 1/8
Clinical Applications
syngo Vessel ViewSemi-automated Protocol-Driven Analysis Toolfor CT- and MR-Angiography Data
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Digital Reports
• Saving of MPR and volume rendering reference
images
• Results tables saved as DICOM images
for hardcopy or softcopy reporting
• Landmark based reporting for easy reference
between anatomy and measurements
Integrated Vessel Navigator
• Longitudinal MPR with vessel area curve fornavigation along vessel path and measurement
of vessel diameter
• AVI creation of multiple orientation vessel
cross-sections
Protocols
• Multiple protocols available for stenosis
measurement or aneurysm analysis with
peripheral as well as coronary vessels, and
other clinical applications
• Rapid documentation protocols for standard
view creation
Pre-requisite
• syngo 3D Basic
• For hardware requirements please refer
to the individual system datasheets
Features and Benefits
• Stenosis quantification and aneurysm assessment
• Clinical protocols for workflow support and reliable
results
• Semi-automatic visualization of vessels from
CT and MR angiography data sets
Image Display
• Integrated MPR and volume rendering views
• Color presets shared with syngo® 3D application
• Large screen segment for data set interaction
• Blow-up mode for improved visualization
• Generation and display of vessel axial MPRs
along vessel centerlines
Automated Segmentation Tools
• Semi-automatic visualization of vessel lumens
• Automatic visualization and measurement of vesselcross-sections in MPR views
Quantitative Analysis
• Diameter and cross-sectional area measurement
• Comparative measurement of vessel size
in different location (normal, stenotic)
• Curved measurements
syngo Vessel ViewSemi-automated Protocol-Driven Analysis Toolfor CT- and MR-Angiography Data
8/6/2019 Vessel View
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Centerline calculation and areameasurement (MR data)
Evaluation with Vessel Navigator (MR data)
Segmentation of the
Carotid Artery (CT data)
Curved distancemeasurement (CT data)
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A 50-year-old female patient was referred for a CT
scan, after a Doppler ultrasound exam demonstrated
stenosis of both the internal and external iliac arteries
on the right side.
The CT scan confirmed the ultrasound image findings
and revealed that there was extensive blockage at
the level just above the right common iliac artery
bifurcation.
4
Case Study 1Multislice CT and syngo Vessel ViewEvaluation of Stenosis of the Right Common Iliac Artery
Examination ProtocolHistory
syngo Vessel View is a dedicated tool for 3D visualization and analysis of vascular structures in CT and also MR.
[1] The evaluation starts with a VRT,for which a pre-set from the imagegallery can be chosen
[2] After visualizing and delineatingthe vessel it will be subtracted and canbe shown with a faded (transparent)VRT in the background
Scanner SOMATOM Volume Access
kV 120 kV
Effective mAs 73 mAs
Collimation 1 mm
Slice width 1.25 mm
Table feed/rotation 3.5 mm
Kernel B20f
Post processing Data was processed with syngo
Vessel View function on the
Wizard
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Diagnosis and Comments
In this case, syngo Vessel View facilitated comparative
measurement of the diameter and cross-sectional
area of the right common iliac vessel at the site
of the blockage and the area on either side. This
noninvasive pre-surgical evaluation of the vessels and
landmark based reporting, using CT and syngo Vessel
View, enabled surgeons to make a more accurate
treatment plan prior to intervention.
Evaluation began with a VRT, for which a pre-set from
the image gallery was chosen [1]. Having visualized
and delineated the vessel it was subtracted and is
shown with a transparent VRT in the background [2].
[3] (A + B) In the Vessel Navigator bothparts of the right common iliac artery can be evaluated
[4] (A + B + C) VRT of the pelvisshowing the vessels
B C
The syngo Vessel View Vessel Navigator function
enabled evaluation at the level before and after the
blockage of both parts of the right common Iliac
artery [3], Vessel Navigator allowed measurement
of vessel diameter before and after the blockage.
A VRT of the pelvis was also constructed [4], giving
an overview of the vasculature.
A B
Courtesy of Radiology München Nord,
Germany
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A 40-year-old male patient was brought into the
emergency room, having suffered a heart attack while
at work. There was no familial history of heart attack,
but the patient was a heavy smoker.
The patient was immediately sent to the coronary
catheter lab, where he underwent stenting of
the right coronary artery. Five days after the event
he was referred for a CTA of the coronary vessels,
primarily to evaluate the stent.
History
syngo Vessel View is a dedicated tool for 3D visualization and analysis of vascular structures
in CT and also MR.
[3] Maximum Intensity Projection of the stentin the RCA
[1] Right coronary artery with a faded VRT of the heart in the background. You canclearly see the stent in the selected vessel
[2] The Vessel Navigator shows
a longitudinal cut along theRCA, the so-called Ribbon-MPR.The implemented stent can beevaluated (in this case: diameter,length)
Case Study 2Multislice CT and syngo Vessel ViewFollow-up Study of a Right Coronary Artery Stent
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[4] Volume RenderingTechnique visualizesthe course of thecoronary vessel and thelocation of the stent(white) in a very good
optical view
Diagnosis and Comments
Initial views of the right coronary artery with a faded
VRT of the heart, enabled clear identification of the
stent in the selected vessel [1]. Using the Ribbon-
MPR functionality that is unique to syngo Vessel View,
a longitudinal cut along the RCA facilitated evaluation
of the diameter and length of the stent, and
additionaly demonstrated stent patency [2]. An
MIP view is also shown [3]. Finally unique volume
rendering techniques provided excellent views of
the stent in situ [4], facilitating more accurate and
informative reporting.
The option syngo Vessel View is a dedicated tool for
3D visualization and analysis of vascular structures.
In addition to vessel analysis, this option is also very
useful for pre-surgical evaluation, which requires
direct measurements in a 3D-volume data set. In this
special case it was possible to have a closer look into
the lumen of the stent to determine whether the
stent was open or not. The measurements that can
be done are very useful for surgeons and cardiologists
for any later surgery that might be necessary.
Examination Protocol
Scanner SOMATOM Sensation 16
Scan direction Cranio-caudal
kV 120 kV
Effective mAs 500 mAs
Collimation 0.75 mm
Slice width 1 mm
Table feed/rotation 2.8 mm
Kernel B20f
Contrast Non-ionic contrast media
Volume 90 cc
Flow rate 3.5 cc/s
Start delay Delay tailored using a test
bolus of 20 cc contrast at4 cc/s
Post processing Data was processed using
syngo Vessel View on the
Wizard console
Courtesy of Klinikum Grosshadern,Munich, Germany
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Order No. A91100-M2100-2127-1-7600
Printed in Germany
CC 42127 WS 06035.
Siemens AG, Medical Solutions
Computed Tomography
Siemensstr. 1, D-91301 Forchheim
Germany
Telephone: ++49 9191 18-0
The drugs and doses mentioned herein are consistent
with the approval labeling for uses and/or indications
of the drug. The treating physician bears the sole
responsibility for the diagnosis and treatment of patients,
including drugs and doses prescribed in connection
with such use. The Operating Instructions must always
be strictly followed when operating the MR/CT System.
The source for the technical data are the corresponding
data sheets.
The information in this document contains general
descriptions of the technical options available, which
do not always have to be present in individual cases.
The required features should therefore be specified in
each individual case at the time of closing the contract.
Siemens reserves the right to modify the design and
specifications contained herein without prior notice.
Please contact your local Siemens Sales representative
for the most current information.
Original images always lose a certain amount of detail
when reproduced.
Siemens AG, Medical Solutions
Henkestr. 127, D-91052 Erlangen
Germany
Telephone: ++49 9131 84-0
www.SiemensMedical.com
Siemens MedicalSolutions that help