vessel view

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Clinical Applications

syngo Vessel ViewSemi-automated Protocol-Driven Analysis Toolfor CT- and MR-Angiography Data



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



Centerline calculation and areameasurement (MR data)

Evaluation with Vessel Navigator (MR data)

Segmentation of the

Carotid Artery (CT data)

Curved distancemeasurement (CT data)



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



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



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



[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



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

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