51. Novel instrumented probe for measuring 3D pressure distribution along the vaginal canal
- Author
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Anice de Campos Pássaro, Isabel C. N. Sacco, Manfred Geuder, Licia Cacciari, and Amanda C. Amorim
- Subjects
Adult ,Materials science ,Valsalva Maneuver ,Intraclass correlation ,Peak pressure ,medicine.medical_treatment ,030232 urology & nephrology ,Biomedical Engineering ,Biophysics ,03 medical and health sciences ,0302 clinical medicine ,Pressure ,Valsalva maneuver ,medicine ,Humans ,Orthopedics and Sports Medicine ,Palpation ,030219 obstetrics & reproductive medicine ,Digital palpation ,Rehabilitation ,Reproducibility of Results ,Repeated measures design ,Pelvic Floor ,Anatomy ,Repeatability ,Middle Aged ,ESTUDOS DE COORTES ,Vaginal canal ,Vagina ,Female ,Biomedical engineering - Abstract
We developed an intravaginal instrumented probe (covered with a 10×10 matrix of capacitive sensors) for assessing the three-dimensional (3D) spatiotemporal pressure profile of the vaginal canal. The pressure profile was compared to the pelvic floor (PF) digital assessment, and the reliability of the instrument and repeatability of the protocol was tested. We also tested its ability to characterize and differentiate two tasks: PF maximum contraction and Valsalva maneuver (maximum intra-abdominal effort with downward movement of the PF). Peak pressures were calculated for the total matrix, for three major sub-regions, and for 5 planes and 10 rings throughout the vaginal canal. Intraclass correlation coefficients indicated excellent inter- and intra-rater reliability and intra-trial repeatability for the total and medial areas, with moderate reliability for the cranial and caudal areas. There was a moderate correlation between peak pressure and PF digital palpation [Spearman's coefficient r=0.55 (p
- Published
- 2017