2005
DOI: 10.1088/0967-3334/26/5/019
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Abstract: No quantitative method has been implemented routinely in clinical practice to assess the oesophago-gastric junction (OGJ). Using impedance planimetry a functional lumen imaging probe (FLIP) was constructed to measure eight cross-sectional areas (CSA) at 4 mm intervals inside a saline-filled bag. To validate the FLIP technique for profiling the OGJ, polymethylmethacrylate (Perspex) cylinders with different CSAs were measured ten times by the FLIP to assess reproducibility and accuracy. A geometric sphincter pha… Show more

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Cited by 83 publications
(70 citation statements)
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“…On the basis of impedance planimetry, an already established technique for performing balloon distentions in the alimentary lumens, this work outlines the use of a functional lumen imaging probe (FLIP) (1, 2, 8 -11, 26, 28). The probe combines measurements of the EGJ resistance to distention with geometric reconstruction of the EGJ (17,18). This concept of measuring distensibility of the EGJ has already been considered by Pandolfino et al (23).…”
Section: The Lower Esophageal Sphincter (Les)mentioning
confidence: 99%
“…On the basis of impedance planimetry, an already established technique for performing balloon distentions in the alimentary lumens, this work outlines the use of a functional lumen imaging probe (FLIP) (1, 2, 8 -11, 26, 28). The probe combines measurements of the EGJ resistance to distention with geometric reconstruction of the EGJ (17,18). This concept of measuring distensibility of the EGJ has already been considered by Pandolfino et al (23).…”
Section: The Lower Esophageal Sphincter (Les)mentioning
confidence: 99%
“…Other groups led by Shaker, Mittal, and Pandolfino [11][12][13] independently developed other distension devices, but use of none of these has become common practice because of limitations caused by use of radiation, the degree of technical difficulty, and geometry-related factors. A major step forward in the development of impedance planimetry was made by Gregersen and coworkers [14] from 2004 and onward, where they developed several new designs of probes capable of making multiple geometric measurements and with improved electrode designs and signal conditioning for rectal studies and early FLIP studies by McMahon et al [15][16][17] on the esophagogastric junction (EGJ).…”
Section: Technical Improvements and Development In Assessment Of Gi Smentioning
confidence: 99%
“…In recent years, several studies have also used the FLIP to characterize the functional properties of the esophagus and the EGJ. First, McMahon et al [15][16][17] showed the feasibility of the FLIP for evaluation of the EGJ. A few years later, Beaumont et al [32] examined Barrett's esophagus patients before and after radio-frequency ablation, and found the EGJ distensibility unchanged after the procedure.…”
Section: Gastroesophageal Reflux Diseasementioning
confidence: 99%
“…New technologies incorporating impedance techniques are also evolving that can provide more detail regarding anatomy and mechanical properties of the esophageal body [13,14] . The functional lumen imaging probe (FLIP) was created by McMahon et al [13,14] to measure cross-sectional area of the esophagus at extremely small intervals.…”
Section: Mii: Future Directionsmentioning
confidence: 99%
“…The functional lumen imaging probe (FLIP) was created by McMahon et al [13,14] to measure cross-sectional area of the esophagus at extremely small intervals. This technique applies computer software that converts the high-resolution planimetry data into a computer animation that recreates the geometry of the anatomic zone being studied.…”
Section: Mii: Future Directionsmentioning
confidence: 99%