Learning objectives
Examine the feasibility of introducing Arterial Spin Labelling Perfusion techniques to neuro-oncology protocols in a large tertiary MRI centre with a large neuro-oncollogy work load.
To highlight the ease of obtaining ASL-PWIs with no offline processing.
Explore theadded valueof Perfusion Weighted Images to improve diagnostic prognostication andconfidence levels.
Background
Arterial Spin Labelling (ASL) is a completely non-invasive MRI perfusion technique.
The technique utilisestrain of electromagneticpulses tolabel arterial blood water flowing to the brain.
Together witha control image,
acquired without labelling,itproduces information on cerebral blood flow.
The use of an endogenous tracer is an attractive pro in the controversial topic of MRI contrast agents.
ASL can produce quantified data,
which is a valuable resource,however this requires offline processing which means time and man power.ASL Perfusion Weighted Images (ASL-PWI) maps can be produced at the time...
Findings and procedure details
How we implemented the service.
MRI Radiographers ata large tertiary MRI centre recieved in-house training from a clinical physicist and specialised radiographer supported by a Neuro-Radiologists with experience in the field.
Training included identifying patients who could benefit from ASL during pre-screening checks,
how to perform ASL techniques and how to optimise patient position to ensure diagnostic scans.
After a period of training and support,
radiographers were able to run the service with little input from neuroradiologists and supporting staff.
During a 10 month period,...
Conclusion
ASL techniques can be introduced to patient services in large scale practise.
ASL is a reliable,
non-contrast,
lowcost and well tolerated technique.
After an initial introduction process,
ASL can be utilised with minimal disruption to already exsisting MR neuro-oncology services.
ASL data has the potential for quantative analysis when required however ASL-PWI can add value to conventional images in the clinical setting.ASL-PWI can be produced and reviewed at the same time as conventional imaging,
with minimalchanges to resources,
an important consideration in the introduction of...
Personal information
1.Ms.
Julia Markus,
MRI Research Radiographer
Department of Radiology
University College Hospital London Hospitals NHS Foundation Trust
email:
[email protected]
2.
Dr.
M.
Sokolska pHD
Department of Medical Physics and Biomedical Engineering
University College Hospital London Hospitals NHS Foundation Trust
3.
Prof.
R.
Jäger pHD
Lysholm Department of Neuroradiology
National Hospital for Neurology and Neurosurgery
University College Hospital London Hospitals NHS Foundation Trust
4.
Dr.
H.
Hyare pHD
Lysholm Department of Neuroradiology
National Hospital for Neurology and Neurosurgery
University College Hospital London Hospitals NHS Foundation Trust
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