Int Neurourol J.  2016 Jun;20(2):164-167. 10.5213/inj.1630504.252.

Electroanatomical Mapping of the Urinary Bladder

• Farag F
• Koens M
• Tijssen M
• de Jong S
• Fabius T
• Tromp J
• van Breda
• Smeets J
• Feitz W
• Heesakkers J

• KMID: 2365749
• DOI: http://doi.org/10.5213/inj.1630504.252

Abstract

A noncontact mapping system (EnSite) was used for electroanatomical mapping of the bladder simultaneously with pressure flow study in three women with lower urinary tract symptoms. We selected the periods of obvious detrusor activity. Data were processed to remove baseline drift, and an envelope of electrovesicography (EVG) data was created. The correlation coefficient for the correlation between between the EVG envelope and the detrusor pressure (P(det)) was calculated. Bladder geometry was successfully created in all 3 patients. Simultaneous recording of EVG and pressure flow data was successful in 1 patient. Scatter plots were made of the highest correlation coefficient, showing a positive correlation between the P(det) and the envelope, and negative correlation between abdominal pressure (P(abd)) and the envelope. Minimal electrical activity could be observed. Significant weak to moderate correlation coefficients were found for the correlations between P(det) and EVG and between P(abd) and EVG.

Keyword

Electrovesicography; Urodynamics; Urinary Bladder

MeSH Terms

Female
Humans
Lower Urinary Tract Symptoms
Urinary Bladder*
Urodynamics