Electrocolonography: Non-Invasive Detection of Colonic Cyclic Motor Activity From Multielectrode Body Surface Recordings

Erickson, Jonathan; Bruce, Laura E.; Taylor, Andrew; Richman, John A.; Higgins, Connor; Wells, Cameron I.; O’Grady, Greg

doi:10.1109/tbme.2019.2941851

Cited by 27 publications

(48 citation statements)

References 46 publications

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“…Still, it is important to bear in mind that electrodes at lower locations might be more likely to record not only from the stomach, but also from other organs of the GI tract (Amaris et al., 2002; Erickson et al., 2019). While the rhythmic activity of the small intestine is at higher frequencies, the frequency range of the colon is broader, covering the frequency range between 0.03 and 0.13 Hz (Amaris et al., 2002; Erickson et al., 2019; Homma et al., 1995; Pezzolla et al., 1989; Riezzo et al., 1998), or even up to 0.2 Hz (Taylor et al., 1975). The frequency range of the colon and of the stomach might thus overlap, but the spectral signature of the stomach seems more narrow‐band than the spectral signature of the colon.…”

Section: Discussionmentioning

confidence: 99%

“…The small intestine displays frequencies that are much higher than the stomach, usually above 0.16 Hz (Christensen, Schedl, & Clifton, 1966;Riezzo et al, 2013;Waldhausen, Shaffrey, Skenderis, Jones, & Schirmer, 1990). The frequency range of the colon is broader, ranging from 2 to 12 cycles per minute in humans (Erickson et al, 2019;Homma et al, 1995;Pezzolla, Riezzo, Maselli, & Giorgio, 1989;Riezzo, Pezzolla, Maselli, & Giorgio, 1994;Taylor, Duthie, Smallwood, & Linkens, 1975), that is, potentially overlapping in frequency with the gastric rhythm (Amaris, Sanmiguel, Sadowski, Bowes, & Mintchev, 2002;Erickson et al, 2019). Still, numerous studies found that the 3 cpm rhythm disappeared, or was largely reduced, following surgical removal of the stomach but not of the colon (Homma et al, 1995;Imai & Sakita, 2005;Kaiho et al, 2000;Pezzolla et al, 1989).…”

Section: Relating Cutaneous Egg To Gastric Physiologymentioning

confidence: 99%

“…Note that reference-free EGG data can be obtained by a higher density coverage and the surface laplacian transform (Gharibans et al, 2017). Still, it is important to bear in mind that electrodes at lower locations might be more likely to record not only from the stomach, but also from other organs of the GI tract (Amaris et al, 2002;Erickson et al, 2019). While the rhythmic activity of the small intestine is at higher frequencies, the frequency range of the colon is broader, covering the frequency range between 0.03 and 0.13 Hz (Amaris et al, 2002;Erickson et al, 2019;Homma et al, 1995;Pezzolla et al, 1989;Riezzo et al, 1998), or even up to 0.2 Hz (Taylor et al, 1975).…”

Section: Electrode Montagementioning

confidence: 99%

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Electrogastrography for psychophysiological research: Practical considerations, analysis pipeline, and normative data in a large sample

2020

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Electrogastrography (EGG) is the noninvasive electrophysiological technique used to record gastric electrical activity by means of cutaneous electrodes placed on the abdomen. EGG has been so far mostly used in clinical studies in gastroenterology, but it represents an attractive method to study brain‐viscera interactions in psychophysiology. Compared to the literature on electrocardiography for instance, where practical recommendations and normative data are abundant, the literature on EGG in humans remains scarce. The aim of this article is threefold. First, we review the existing literature on the physiological basis of the EGG, pathways of brain‐stomach interactions, and experimental findings in the cognitive neuroscience and psychophysiology literature. We then describe practical issues faced when recording the EGG in young healthy participants, from data acquisition to data analysis, and propose a semi‐automated analysis pipeline together with associated MATLAB code. The analysis pipeline aims at identifying a regular rhythm that can be safely attributed to the stomach, through multiple steps. Finally, we apply these recording and analysis procedures in a large sample ( N = 117) of healthy young adult male and female participants in a moderate (<5 hr) to prolonged (>10 hr) fasting state to establish the normative distribution of several EGG parameters. Our results are overall congruent with the clinical gastroenterology literature, but suggest using an electrode coverage extending to lower abdominal locations than current clinical guidelines. Our results indicate a marginal difference in EGG peak frequency between male and female participants, and that the gastric rhythm becomes more irregular after prolonged fasting.

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Section: Discussionmentioning

confidence: 99%

Section: Relating Cutaneous Egg To Gastric Physiologymentioning

confidence: 99%

Section: Electrode Montagementioning

confidence: 99%

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Electrogastrography for psychophysiological research: Practical considerations, analysis pipeline, and normative data in a large sample

2020

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“…As EColG is a novel technique, there are limited published data to date; however, it has been specifically validated to detect cyclic motor activity and methods are progressing. Early evidence shows that the same 2-4 cycle per minute CMPs can be detected using EColG, including the increased post-prandial activity (Erickson et al, 2020). If validated in post-operative patients, EColG could be applied to achieve clinicopathological correlation of the hyperactive CMP, including detailed comparisons of right vs. left colectomy.…”

Section: Testing the Hypothesismentioning

confidence: 99%

Variable Gut Function Recovery After Right vs. Left Colectomy May Be Due to Rectosigmoid Hyperactivity

2021

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It is established that gut function recovers slower after right vs. left colectomies with higher rates of prolonged post-operative ileus (PPOI), but the reason is unclear. Development of PPOI is multifactorial. A recent manometry study in right colectomy patients showed that the distal colon becomes hyperactive after surgery with predominantly cyclic motor patterns (CMPs). In this perspective, we evaluate the hypothesis that the slower gut recovery after right hemicolectomy could be induced by a functional obstruction due to hyperactive CMPs.

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“…In addition, these concepts have recently been successfully extended to the colorectum by Erickson et al, opening broader applications for HR mapping at the body surface both in gastroenterology and GI surgery. 91 6.1 | Next steps and future directions…”

Section: For Technical Details)mentioning

confidence: 99%

Body surface mapping of the stomach: New directions for clinically evaluating gastric electrical activity

Carson

O’Grady

et al. 2020

Neurogastroenterology Motil

120

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Disorders of gastroduodenal function without an obvious organic cause are common, defined by the Rome IV criteria to include functional dyspepsia, chronic nausea, and vomiting disorders, in addition to belching and rumination disorders. 1 Patients must meet criteria based upon symptoms, along with the requirement that no evidence of organic, systemic, or metabolic disease that is likely to explain their symptoms is found on routine investigations (including at upper endoscopy). 1 However, other gastric disorders, particularly gastroparesis, may have a clinical picture which is indistinguishable from the functional nausea and vomiting disorders, despite being

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Electrocolonography: Non-Invasive Detection of Colonic Cyclic Motor Activity From Multielectrode Body Surface Recordings

Cited by 27 publications

References 46 publications

Electrogastrography for psychophysiological research: Practical considerations, analysis pipeline, and normative data in a large sample

Electrogastrography for psychophysiological research: Practical considerations, analysis pipeline, and normative data in a large sample

Variable Gut Function Recovery After Right vs. Left Colectomy May Be Due to Rectosigmoid Hyperactivity

Body surface mapping of the stomach: New directions for clinically evaluating gastric electrical activity

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