A novel radar-based sensor for non-invasive intra-abdominal pressure monitoring: from design towards clinical testing.

Project Details


Intra-abdominal pressure (IAP) is the steady-state pressure inside
the abdominal compartment. Based on literature, approximately more
than half of the critically ill patients develop intra-abdominal
hypertension (IAH) within their stay in the intensive care units (ICUs).
Since perfusion pressure of the abdominal organs is a function of
IAP, elevated IAP results in diminished organ perfusion, multiple
organ failure, and death depending on the severity of IAH. Therefore,
monitoring IAP is necessary for patients hospitalized in the ICU.
Presently, the reference standard for IAP monitoring is an invasive
measurement method through the bladder. This measurement
technique reflects the abdominal pressure with relatively high
accuracy and reliability, however, it carries a high risk of infection and
is not applicable to patients with hematomas or other pelvic masses.
Additionally, it is a non-continuous IAP measurement technique that
can be used every 6 to 8 hours. Consequently, there is a huge
demand for developing a novel non-invasive IAP measurement
method for critically ill patients. This project aims to design and
fabricate a microwave-based sensor on the basis of a novel radarbased technique known as transient radar method (TRM) for noninvasive IAP monitoring. In the long term, however, we aim to
develop a certified medical device based on this research project with
a worldwide application for intra-abdominal pressure measurement.
Effective start/end date1/11/2131/10/23


  • Intra-abdominal pressure
  • Non-invasive monitoring
  • Microwave-based sensor

Flemish discipline codes

  • Microwaves, millimeter waves and THz components and circuits and systems
  • Sensors, biosensors and smart sensors not elsewhere classified
  • Other (bio)medical engineering not elsewhere classified
  • Medical intensive care