The aim of this study is to assess the accuracy of the Accuro Ultrasound Device in estimating the epidural space depth compared to the Standard Ultrasound Examination and with the measured needle depth during epidural and spinal insertion in pregnant obese patients
SpineNav3DTM technology facilitates image interpretation of individual 2D lumbar spine scans by automating spinal bone landmark detection and depth measurements and providing a real-time assessment of scan plane orientation in 3D. All the subjects will have their lumbar area scanned for the measurements of the depth of the epidural space (recorded in cm) by two blinded anesthesiologists, one using standard ultrasounds and the other the Accuro Device. All measurements will be performed either in the sitting or in the supine position at L1/L2, L2/L3 and L3/L4 levels. Neuraxial anesthesia will be performed by using the previously marked interspace by a blinded anesthesiologist who will measure the epidural space depth during epidural or spinal insertion by marking the needle.
Study Type
OBSERVATIONAL
Enrollment
50
ultrasound device (Accuro, Rivanna Medical, Charlottesville, VA) with automated pattern recognition software programmed (SpineNav3DTM technology) to calculate the depth to epidural space and identify bony landmarks
standard ultrasound device (o calculate the depth to epidural space and identify bony landmarks
ASST S Gerardo
Monza, Italy
Epidural space depth
the depth of the epidural space (recorded in cm) is defined as the distance from the skin to the posterior complex
Time frame: up to 30 minutes
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