D2-1020-Organizing MRI Data, by using Enhanced Multi

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Abstract Submission Form
Submission Deadline:
Enhanced MR object can help to tackle complexity of MR series
Wim Corbijn van Willenswaard
Chair Working Group 16
Affiliation / Location:
Philips Electronics India Ltd, Bangalore
E-mail address of
corresponding author:
Preferred format:
(200 – 750 words, in English)
___ Oral presentation or poster
_X_ Oral only
___ Poster only
For MRI we currently see three different developments that make
interoperability a real challenge and make even the simple
displaying of images difficult.
Data complexity: Multi volume data means the same
volume is scanned under different circumstances. This
turns out to be a problem for many systems as they see
the same image position several times.
With faster hardware the number of images gathered in a
series is growing. Currently we see the number going up
to even 64000 images per series, resulting in increased
transfer times and increased complexity for viewers in
displaying the data.
New scanning techniques are producing new types of data
that can’t be recognized by viewers through standard
DICOM tags. This means that knowledge of additional
parameters (typically through private tags) is needed to be
able to display the data properly.
Data Complexity:
Several modalities can scan the heart at different phases of the
heartbeat. As a result, the same volume is scanned several times,
often displayed as movies of the heart beating. For MR this is not
the only way to create a multi volume series. There are several
parameters that can be used to create multiple versions of the
same volume. Typical examples are techniques like perfusion and
diffusion which will result in less obvious differences in the
volumes. Enhanced MR objects contain the Dimension module
that gives guidance to the inexperienced user of the data how to
distinguish between the different volumes.
Increasing size of series:
Faster hardware is used for shorter examination times but also for
increasing the number of images gathered. The latter is very often
used to get better temporal resolution after processing. In the
classic DICOM format, the effect is longer transfer times as the
synchronous transfer has a handshake for every object/image.
The Enhanced object family can transfer a series in one object.
The number of objects can be increased to keep the objects
manageable for receiving nodes in the case of a very large series.
The reduction of number of objects compared to the number of
Classic objects will result in much better utilization of the network
(big burst of data). This advantage can go up to a factor of 10 in
lead-time compared to many image objects for relatively small
New Techniques:
Research in the MR area is resulting in new acquisition and
processing techniques delivering images that can’t be
distinguished by standard DICOM tags. This means that for the
user it is not possible to distinguish the difference between the set
of volumes. Only private tags will give this information. By adding
the private information to the Dimension module the viewer will be
able to distinguish without the specific tag knowledge.
An explanation of the Dimension module will show how this can
be used to solve the problems of complexity and new techniques.