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Novel physiological analysis using blood flow velocity for colonic polyps: Pilot study
- Source :
- Endoscopy International Open, Vol 12, Iss 06, Pp E781-E787 (2024)
- Publication Year :
- 2024
- Publisher :
- Georg Thieme Verlag KG, 2024.
-
Abstract
- Real-time visualization of red blood cell flow inside subepithelial microvessels is performed with magnifying endoscopy. However, microvascular blood flow velocity in the colorectum has not been investigated. Here, we aimed to evaluate the blood flow velocity of microvessels of colonic polyps and to compare it with that of surrounding mucosa. We examined 50 lesions, including 30 adenomas (ADs) and 20 hyperplastic polyps (HPs). Blood flow velocities of lesions and their surrounding mucosa were evaluated using magnifying blue laser imaging (BLI) prior to endoscopic resection. Calculation of mean blood flow velocities was based on mean movement distance of one tagged red blood cell using split video images of magnifying BLI. Mean microvascular blood flow velocity was significantly lower in ADs (1.65±0.66 mm/sec; range 0.46–2.90) than in HPs (2.83±1.10 mm/sec; 1.07–4.50) or the surrounding mucosa (3.73±1.11 mm/sec; 1.80–6.20; P
Details
- Language :
- English
- ISSN :
- 23643722 and 21969736
- Volume :
- 12
- Issue :
- 06
- Database :
- Directory of Open Access Journals
- Journal :
- Endoscopy International Open
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.f67c26cd3c6647e0bdd91f27d8d77006
- Document Type :
- article
- Full Text :
- https://doi.org/10.1055/a-2306-9218