Automatic Vein Pressure
Measurement using Ultrasound
Orçun Göksel
Vincent Baumann
Computer Vision Laboratory
ETH Zürich
VeinPress GmbH
Central Venous Pressure (CVP)
 Blood pressure in thoracic vena cava, near right atrium
 Amount of blood returning to the heart
 Ability of the heart to pump the blood into the arterial system
 CVP for monitoring hemodynamics
 Preload
 Volume overload
 Cardiac failure
 Sepsis
 …
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Conventional Measurement
 Catheterization of subclavial or internal jugular vein
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Our Technique
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Automatic Measurement Device
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Measurement Process
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Under the Hood
Noisy compression data
(a)
Robust detection
(b)
(c)
Statistical and Model-based
processing
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Multiple candidates
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Results
Preliminary Study
* Clinical study is ongoing
at University Hospital Basel,
Angiology Clinic
(led by Dr. med. Stephan Imfeld)
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Why VeinPress
Method
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Catheter
VeinPress
Invasive
Non-invasive
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Why VeinPress
Method
Complications
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Catheter
VeinPress
Invasive
Non-invasive
Severe and several
None
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Why VeinPress
Method
Complications
Time
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Catheter
VeinPress
Invasive
Non-invasive
Severe and several
None
>20 minutes
1 minute
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Why VeinPress
Method
Complications
Time
Personnel
Bern, 02.09.2014
Catheter
VeinPress
Invasive
Non-invasive
Severe and several
None
>20 minutes
1 minute
Trained physician
+assistant
A nurse
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Why VeinPress
Method
Complications
Time
Personnel
Material cost / procedure
Bern, 02.09.2014
Catheter
VeinPress
Invasive
Non-invasive
Severe and several
None
>20 minutes
1 minute
Trained physician
+assistant
A nurse
CHF 250+
Minimal
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Why VeinPress
Non-invasively
The only validated method
No Complications
Benefit to patient
90% cost reduced
Benefit to Healthcare System
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Potential Medical Applications
 Research tool
 Clinical focus areas:
 Venous diseases, e.g. thrombosis
 Urgency: Bleeding, sepsis, volume overload
 Chronic brain edema in low gravity
 Others
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Ongoing Projects
ETH Computer Vision Lab
Prof. Dr. Orcun Göksel
NASA, Houston (USA)
Dr. Dean Martin
Head of Ultrasound
1
2
University of Basel (CH)
Dr. med. S. Imfeld
Dr. med. M. Aschwanden
Angiology Clinic
University of Zurich (CH)
PD Dr. med. Ch. Thalhammer
Angiology Clinic
3
6
University of Toulon (FR)
Starting in 11/2014
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University of Bari (I)
Prof. C. Caiati
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VeinPress Team
Dr. Markus Widmer
Engineering
Dr. med. Ulrich Baumann
Medical
Vincent Baumann
Legal
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Dr. med. Eric Odenheimer
Production / Sales
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Looking into the Future
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We would like to thank…
CTI
Wirtschaftsförderung, Kanton Bern
ETH Zurich, Computer Vision Lab
Patrick Roth, CCMT
All clinical partners
Prof. em. Kurt Jäger
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Thank you!
for your vote
Stay tuned @ www.veinpress.com
Questions?