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Tips & Tricks
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Image 1
Easily edit the centerline in InSpace AVA
During analysis of the vessels in syngo InSpace 4D AVA (Advanced Vessel Analysis), you can easily edit or delete points on the centerline. Select the "Edit" function (marked in green on image 1) then select the Vessel mode (marked in red on image 1). In the cross-sectional MPR, MPR or VRT, you can select the green handles and then drag them to the desired place or delete them with the delete button on your keyboard. The centerline will then be updated automatically (image 2).
Fine-tune your Carotid CTA’s
Fine-tune your Carotid CTA’s
If you want to fine-tune your carotid CTA’s after using syngo Dual Energy Head Bone Removal on your SOMATOM Definition scanner, save the syngo Dual Energy results via "Save Sets CT" (see image).
For optimizing your result, load this new series into syngo InSpace 4D, use Bone Removal and select the "Fracture" algorithm.
Mark directly on an artery (see image) and go to step-3, "Finish." Then you can create all desired image types and reconstructions as usual.
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Image 1
Reconstructions Easily Found
After creating your parallel ranges in syngo 3D, you want to save them on your system.
When you select the icon "Save as" (marked in red on image one), you can predefine the "Range series name" (marked in red on image one). Once you have entered the description, it will be stored and appear in the drop-down menu. Thereafter you can easily recognize this dedicated series in the Patient Browser (marked in red on image 2).
Measuring the volume of a kidney stone
With syngo Volume you can easily determine the volume of an uric acid kidney stone.
Load the color maps (created in syngo Dual Energy with Kidney Stones application class) (image 1).
The uric acid stones will be black on the images (image 2).
Type in Upper (-1) and Lower (-1024) (HU).
Go for automatic segmentation by clicking on the stone. Then the volume will be calculated, by region growing. (image 3)
Contrast volume for abdomen angiography
Contrast volume for abdomen angiography
The following formula may be used to estimate the total amount of contrast medium for an abdomen angiography.
This formula, used with an 18-gauge or larger intravenous needle, assures a good contrast filling of the arteries.
Contrast Volume (ml) = (scan time (s) x flow rate (ml/s)) + 20 ml
View all steps
From your multiphase cardiac dataset, you are able to send just one phase to the PACS, if desired
After performing a multiphase reconstruction for a cardiac examination, you want to save only one phase.
It is possible within syngo to split your multiphase dataset into different series.
The workflow is described below:
- Select your multiphase dataset in the patient browser
- Open the Application: Conversion
- Mark the checkbox:"Split-up series according to trigger delay (one series holds all slice positions)"
- Send your desired phase to PACS
Bone Removal Workflow with syngo Dual Energy
Bone Removal Workflow with syngo Dual Energy
How to Enhance a Bone Removal Workflow with syngo Dual Energy
After running the body or head bone removal application, it may be helpful to see the bony structures adjacent to the vessels.
In both applications you can view all the bony structures by using the middle mouse button. Click with the middle mouse button and keep it pressed, the bones will appear automatically. This works in the coronal, sagittal and transversal MPR segment.
It will help you to verify the bone removal more precisely, if desired.
Brain Tumor Perfusion Scanning
How can I improve Brain Tumor Perfusion Scanning? *
The contrast injection plays an important role.
In comparison to stroke perfusion, tumor perfusion demands a good contrast enhancement as well as a contrast plateau.This increases the numerical stability of the patlak analysis.
To achive this plateau we recommend a bi-phasic contrast (CM) protocol:
1. 30 ml CM @ 5 ml/s
2. 30 ml CM @ 1 ml/s
3. 20 ml NaCl @ 1 ml/sThe high-concentrated CM is pre-heated and a 18 G needle is used.
Courtesy of Dr. Schramm, University Hospital Göttingen, Germany
* The information presented in this article is for illustration only and is not intended to be relied upon by the reader for instruction as to the practice of medicine. Any health care practitioner reading this information is reminded that they must use their own learning, training and expertise in dealing with their individual patients. This material does not substitute for that duty and is not intended by Siemens to be used for any purpose in that regard.
Example of the screen after using the center-click function
See the vessel from all directions
With Center-Click you can easily display a coronary vessel in the middle of the segment.
This feature is helpful if you want to have a look at the whole extent of the vessel from all directions.
In syngo Circulation, you can easily do a left mouse click together with the SHIFT button on a coronary vessel. Then that coronary vessel will be centered in all segments and you can rotate around the center point in all directions.
You can also change the time sequence (marked in red) after you make a trace
Analyze the Vessels in a Multiphase Dataset
SOMATOM Definition scanners deliver 4D datasets while syngo InSpace4D visualizes hemodynamics in excellent quality. Of course it is also important for you to be able to measure the diameter of any vessel and Siemens' AVA (advanced vessel analysis) efficiently provides this capability.
Even after creating your trace, it is still possible to change the time sequence to obtain the best contrast phase.
On the attached image, you can readily see that it is easy to use the 4D dialog window and syngo InSpace AVA at the same time.
Working with Dual Monitor on syngo 3D
When you work with Dual Monitor, syngo 3D lets you select two differents series and load them in the compare mode. To be comparable, the series must be acquired with the same modality type. It is also possible to load series from two different patients.
Make a multi-select of two series in the Patient Browser with the CTRL-key and load them via the dedicated icon into syngo 3D. Zoom and Pan for example will infuence both series, Parallel or Radial Ranges can only be created on one series at the time.
Create MPR ranges in syngo InSpace4D
When you create MPR ranges in the syngo 3D card, you can select the icon "Constant Number of Images". The following workflow shows you how to get the same behaviour for the MPR ranges in syngo InSpace4D where there is no dedicated icon available:
1. Open the MPR Ranges menu
2. Define the number of images (20 is used here)
3. Select the first and the last frame, then the spacing will be adjusted to keep the number of steps constant.
On the following image the red-outlined area indicates where you can define the fixed number of images.
How to Color Code Kidney Stones with syngo Dual Energy
When using the Kidney Stone Application class in syngo Dual Energy, small kidney stones (< 3 mm) may not be color coded. To depict these stones in color, you can perform a recalculation using a lower Range value (minimum should not be less than 2). You can change the Range value in the Advanced Parameter Definition menu. The Range value indicates the typical range of smoothing filter in units of pixel size.The use of a smaller value will improve the detection of small kidney stones as can be seen in the following images.
Different datasets of different patients in syngo InSpace 4D
In syngo InSpace 4D, it is possible load up to three different datasets of different patients. After loading the first patient you select "CTRL+O". The patient browser will open and you can select another series and load it with "Enter." The previous dataset will move to the background but remains available. In the main menu you find all loaded datasets under "Volumes" and can easily switch between them.
Using "Center Click" in syngo Oncology
With "Center Click" in syngo Oncology, you can easily define how a vessel adjacent to a tumor is situated. When you use the function "Center Click" you have the ability to rotate the MPR views 360 degrees in all directions. When the icon (marked in red on the image) is activated, use the SHIFT-Key + one left mouse click in one of the MPR segments on the vessel. This point will be placed in the center of the segment and stay there. The pointer of the mouse will change automatically into the rotate function and you can rotate the image in all directions. The workflow is displayed on the following images.
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Step 1
QCA in syngo Circulation
When you are performing a quantitative coronary analysis (QCA) in syngo Circulation you can easily do a double click on the name of the created centerline to start the evaluation of that specific coronary artery. So you can speed up your workflow.
On the following images this is made clear.
Step 1: Create your centerline and do a double click on the name (marked in red on the image)
Step 2: Continue your evaluation
Step 2: Continue your evaluation
Orientation in syngo InSpace4D
In syngo InSpace4D, when an image is rotated or angled, you can quickly display a standard orientation by clicking on the orientation cube in the left lower corner of the VRT image segment.
For example when clicking on “P” you will obtain a posterior view. Please make sure that the icon “Manipulate all objects” is
activated as shown in the image.
activated as shown in the image.
Is there an easy method to edit the contour in syngo InSpace4D AVA?
When the contour is displayed on the vessel and you want to adapt it, take one of the handles and move it to the desired place while keeping the left mouse button down for 5 seconds.
The contour will be adapted automatically.
On the screenshots you can see how well this works.
Did you know that it is possible to save an image directly in a JPEG-format in syngo InSpace?
For example, when you create an image and want to use it in a presentation, you do a right mouse click on the "Save As" icon (indicated in red on the image), and select the desired format. Alternately, if you are using a USB-device that is supported by our software, you can save the image directly to it.
Is there a fast way to load images from the Viewing card into the 3D card?
When you have loaded thin slices in the viewing card to do your reading or to do other manipulations on the images, you can easily send them into the 3D card and continue your post-processing process by clicking on the icon in the right lower corner "3D MPR" (the red marked icon on the image). Then the same series will be loaded automatically into the 3D card.
Tips when using UHR modes
The following hints should be taken in consideration when using
UHR modes:
- Maximum FOV is restricted to 30 cm; care should be taken to position
the region of interest in the center of the scan field - Special U kernels should be used
- The default UHR protocols are provided only for examining the
inner ears and extremities - z-UHR modes allow better spatial resolution than the UHR modes,
at the expense of increased dose.
How can I compare two datasets from two different patients into the Viewing card?
To load images of different patients into the same folder of the Viewing task card, please activate the Multi View icon.
Immediately the layout of the Viewing task card changes to the special Multi View layout, the image segments of different studies or patients are now divided by a triple line. To load the data of the patients, please use the "Multiple Selection " or the "Drag and Drop " Technique.
The Multi View mode lets you easily and simultaneously compare, scroll
and manipulate images of different series, studies or patients.
How can I improve my coronary CTA images?
When using nitro spray (Nitro-glycerin), the coronary arteries are
dilated and thus better visualized.
You might give the patient two nitro spray puffs or 0.5 mg NTG orally
before you start the examination. Please read the package insert of
the Nitro spray and make sure that no contra-indications apply.
