This is a prospective, open, multicenter study that will enroll patients admitted to and hospitalized at the Stroke Unit due to diagnosed stroke and healthy volunteers. The main purpose of the study is to evaluate the ability of the Microwave Technology to deliver adequate measurement data.
After written informed consent has been acquired a physical examination will be performed followed by confirmation of the inclusion/exclusion criteria. After subject enrollment the microwave measurement will be performed. The procedure will take approximately 15 minutes (the duration of the actual measurements is \< 1 minute) and will not interfere with the patient's standard of care at the Stroke Unit. The measurement data will be evaluated for the presence of signal artifacts. The diagnostic ability of the device will be evaluated using a leave-one-out cross validation method with the CT diagnosis as ground truth. Microwave signals are sensitive to the dielectric parameters of the investigated object. In biological matter this is often related to amount of water. Brain tissue has different dielectric properties from blood. The physiological changes inside the brain that occurs as a result of a stroke will change the dielectric parameters.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
165
A microwave measurement will be performed. The procedure will take approximately 15 minutes (the duration of the actual measurements is \< 1 minute) and will not interfere with the patient's standard of care at the Stroke Unit.
Strokeenheten, Södra Älvsborgs Sjukhus
Borås, Borås, Sweden
Sahlgrenska University Hospital/Sahlgrenska, Dept. of Neurology
Gothenburg, Göteborg, Sweden
Strokeenheten, Skaraborgs Sjukhus
Skövde, Sweden
Ability to deliver adequate measurement data
To confirm that the device will deliver adequate measurement data for at least 80 % of the patients diagnosed with Hemorrhagic stroke and Ischemic stroke
Time frame: The procedure will take approximately 15 minutes
To confirm that the device will deliver adequate measurement data for at least 80 % of the healthy volunteers
Time frame: The procedure will take approximately 15 minutes
Mean time (± standard deviation) needed to complete the measurement procedure for group A + B + C
Time frame: The procedure will take approximately 15 minutes
To confirm the diagnostic ability of the device using a leave-one-out cross validation method
Time frame: The procedure will take approximately 15 minutes
Occurrence of adverse events
Time frame: 24 hours
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