PMID- 34891899 OWN - NLM STAT- MEDLINE DCOM- 20211230 LR - 20211230 IS - 2694-0604 (Electronic) IS - 2375-7477 (Linking) VI - 2021 DP - 2021 Nov TI - Antral Variation of Murine Gastric Pacemaker Cells Informed by Confocal Imaging and Machine Learning Methods. PG - 3105-3108 LID - 10.1109/EMBC46164.2021.9630341 [doi] AB - The Interstitial Cells of Cajal (ICC) are specialized gastrointestinal (GI) pacemaker cells that generate and actively propagate electrophysiological events called slow waves. Slow waves regulate the GI motility necessary for digestion. Several functional GI motility disorders have been associated with depletion in the ICC. In this study, a validated Fast Random Forest (FRF) classification method using Trainable WEKA Segmentation for segmenting the networks of ICC was applied to confocal microscopy images of a whole mount tissue from the distal antrum of a mouse stomach (583 x 3,376 x 133 mum(3), parcellated into 24 equal image stacks). The FRF model performance was compared to 6 manually segmented subflelds and produced an area under the receiver-operating characteristic (AUROC) of 0.95. Structural variations of ICC network in the longitudinal muscle (ICC-LM) and myenteric plexus (ICC-MP) were quantified. The average volume of ICC-MP was significantly higher than ICC-LM at any point throughout the antral tissue sampled. There was a pronounced decline of up to 80% in ICC-LM (from 3,705 mum(3) to 716 mum(3)) over a distance of 279.3 mum, that eventually diminished towards the distal antrum. However, an inverse relationship was observed in ICC-MP with an overall increase of up to 157% (from 59,100 mum(3) to 151,830 mum(3)) over a distance of approximately 2 mm that proceeds towards the distal antrum. FAU - Mah, Sue Ann AU - Mah SA FAU - Avci, Recep AU - Avci R FAU - Du, Peng AU - Du P FAU - Vanderwinden, Jean-Marie AU - Vanderwinden JM FAU - Cheng, Leo K AU - Cheng LK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Annu Int Conf IEEE Eng Med Biol Soc JT - Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference JID - 101763872 SB - IM MH - Animals MH - Gastrointestinal Motility MH - *Interstitial Cells of Cajal MH - Machine Learning MH - Mice MH - Microscopy, Confocal MH - Myenteric Plexus EDAT- 2021/12/12 06:00 MHDA- 2021/12/31 06:00 CRDT- 2021/12/11 01:03 PHST- 2021/12/11 01:03 [entrez] PHST- 2021/12/12 06:00 [pubmed] PHST- 2021/12/31 06:00 [medline] AID - 10.1109/EMBC46164.2021.9630341 [doi] PST - ppublish SO - Annu Int Conf IEEE Eng Med Biol Soc. 2021 Nov;2021:3105-3108. doi: 10.1109/EMBC46164.2021.9630341.