Publications by authors named "Isabel Navazo"
Article Synopsis
- The analysis of colonic contents is essential for gastroenterologists and has various clinical uses.
- T2 weighted MRI images can effectively segment the colonic lumen, while T1 weighted images allow for the distinction of fecal and gas contents.
- This paper introduces a quasi-automatic framework for accurately segmenting the colon in both T1 and T2 images, ultimately helping physicians understand diet effects and abdominal distension mechanisms.
The study of the colonic volume is a procedure with strong relevance to gastroenterologists. Depending on the clinical protocols, the volume analysis has to be performed on MRI of the unprepared colon without contrast administration. In such circumstances, existing measurement procedures are cumbersome and time-consuming for the specialists.
View Article and Find Full Text PDFBackground: Some patients complain that eating lettuce, gives them gas and abdominal distention. Our aim was to determine to what extent the patients' assertion is sustained by evidence.
Methods: An in vitro study measured the amount of gas produced during the process of fermentation by a preparation of human colonic microbiota (n = 3) of predigested lettuce, as compared to beans, a high gas-releasing substrate, to meat, a low gas-releasing substrate, and to a nutrient-free negative control.
Background & Aims: In patients with functional gut disorders, abdominal distension has been associated with descent of the diaphragm and protrusion of the anterior abdominal wall. We investigated mechanisms of abdominal distension in these patients.
Methods: We performed a prospective study of 45 patients (42 women, 24-71 years old) with functional intestinal disorders (27 with irritable bowel syndrome with constipation, 15 with functional bloating, and 3 with irritable bowel syndrome with alternating bowel habits) and discrete episodes of visible abdominal distension.