Ultrasonographic findings in Crohn’s disease

Maffè, Gabriella Carnevale; Brunetti, Laura; Formagnana, Pietro

doi:10.1007/s40477-014-0096-3

Cited by 11 publications

(4 citation statements)

References 46 publications

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“…Previous NIRS measuring devices were used to evaluate adults’ cerebral blood flow to a depth of 1–3 cm [ 9 , 24 , 25 ], but these devices are unsuitable for assessing intestinal tissue. The thickness of the small intestinal wall is less than 3 or 4 mm, therefore the depth of measurement with previous NIRS devices was considered to be too deep [ 26 , 27 ]. Recently, the cerebral blood flow of infants or the placental oxygen saturation of fetuses were analyzed using advanced technology of NIRS [ 28 – 30 ].…”

Section: Discussionmentioning

confidence: 99%

Usefulness of a finger-mounted tissue oximeter with near-infrared spectroscopy for evaluating the intestinal oxygenation and viability in rats

et al. 2020

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Purpose To investigate the utility of the device for evaluating intestinal oxygenation and viability using an animal model. Methods Sprague–Dawley rats underwent laparotomy under general anesthesia, and the blood vessels in the terminal ileum were clamped to create ischemia. We measured the regional tissue oxygenation saturation (rSO2) using an oximeter after 1, 3, and 6 h of vessel clamping. Ischemic tissue damage was assessed using a histological score. The intestine was reperfused after each clamping period, and intestinal rSO2 and survival rate were evaluated. Results When reperfusion was performed at 1 and 3 h after ischemia, rSO2 increased after 10 min, and it improved to the same level as for normal intestine after 1 h; all rats survived for 1 week. In contrast, after 6 h of ischemia, rSO2 did not increase after reperfusion, and all animals died within 2 days. The histological scores increased after 1 h of reperfusion, with longer clamping periods. Conclusion A finger-mounted tissue oximeter could evaluate intestinal ischemia and the viability, which is thus considered to be a promising result for future clinical application.

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Section: Discussionmentioning

confidence: 99%

Usefulness of a finger-mounted tissue oximeter with near-infrared spectroscopy for evaluating the intestinal oxygenation and viability in rats

et al. 2020

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“…He also reported that significant increase in the mean sum of thickness of the submucosa, muscularis, muscularis and serosa was noted and in humans with Crohn's Disease has similar findings. In accordance with Maffe et al (2015) bowel is considered to be thickened when the measurement of the wall is more than 3mm and opined that ultrasonography helps in identification of extra intestinal features associated with active Crohn's Diseases, such as mesenteric fat hypertrophy, enlarged regional lymph nodes and free fluid accumulation in intraperitoneal free fluid. He also suggested that stenoic intestine has a thickened wall, narrow lumen along with reduced or on peristalsis and associated with pre-stenoic dilatation greater than 25 mm in diameter with liquid and air in Lumen.…”

Section: Ultrasonographic Evaluation Of Gastro-intestinal Dysfunction...mentioning

confidence: 99%

Ultrasonographic Evaluation of Gastro-intestinal Dysfunction in Rescued Olive Ridley Sea Turtles (Lepidochelys olivacea)

Ramakrishnan,

Palanivelrajan,

Sumathi

et al. 2024

IJAR

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Background: The olive ridley sea turtle is a common inhabitant of primarily in the Pacific and Indian Oceans. Sea turtles show poor clinical signs and due to the existence of carapace and plastron, physical examination requires complementary diagnostic methodology to provide valuable information for clinical diagnosis. Methods: This work describes the normal ultrasonographic appearance of cervical structures and gastro-intestinal organs of seven olive ridley sea turtles that were stranded during September 2017 to April 2018 along with rescued sea turtle by Trust for Environmental and Education (TREE) foundation, Vettuvankeni, Chennai, Tamil Nadu. Ultrasound examination was performed with multi frequency Probe (3.5 MHz to 7.5 MHz) transducer. Ten soft-tissue areas of integument were used as acoustic windows. Result: On ultrasonographic examination of the cervical-ventral acoustic window, the esophagus was imaged. The stomach was more frequently seen through the left axillary acoustic window. The liver could be imaged through both sides of the axillary window and the right axillary acoustic window was the most indicated to visualize the gallbladder. The large and small intestines could be seen in the prefemoral and post femoral acoustic window on the both the sides. The ultrasonographic measurement of various organs was done furthermore gastrointestinal dysfunctions were recorded. This study on ultrasound indices was found to be a useful diagnostic tool for evaluation of coelomic organs in olive ridley.

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“…(5) Presence of fistula signs (Figure 5). Fistula signs were defined as a hypoechoic, duct-like, peri-intestinal lesion with a diameter smaller than 2 cm, sometimes with internal echoic spots related to the presence of air, debris, or intestinal material [20].…”

Section: Baseline Data Processing and Ultrasonic Feature Extractionmentioning

confidence: 99%

Consistency of Trans-Abdominal and Water-Immersion Ultrasound Images of Diseased Intestinal Segments in Crohn’s Disease

et al. 2020

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The aim of this study is to clarify whether trans-abdominal ultrasound (TAUS) can reflect actual intestinal conditions in Crohn’s disease (CD) as effectively as water-immersion ultrasound (WIUS) does. This retrospective study enrolled 29 CD patients with 113 intestinal lesions. Five ultrasound (US) parameters (distinct presence/indistinct presence/disappearance of wall stratification in the submucosal and mucosal layers; thickened submucosal layer; irregular mucosal surface; increased fat wrapping around the bowel wall; and fistula signs) that may indicate different states in CD were determined by TAUS and WIUS for the same lesion. Using WIUS as a reference standard, the sensitivity, specificity, and accuracy of TAUS were calculated. The degree of agreement between TAUS and WIUS was evaluated by the kappa coefficient. All US parameters of TAUS had an accuracy >70% (72.6–92.7%). The highest efficacy of TAUS was obtained for fistula signs (sensitivity, specificity, and accuracy values were 63.6%, 96.0%, and 92.7%, respectively). All US parameters between TAUS and WIUS had a definitive (p ≤ 0.001) and moderate-to-substantial consistency (kappa value = 0.446–0.615). The images of TAUS showed substantial similarity to those of WIUS, suggesting that TAUS may function as a substitute to evaluate the actual intestinal conditions of CD.

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Ultrasonographic findings in Crohn’s disease

Cited by 11 publications

References 46 publications

Usefulness of a finger-mounted tissue oximeter with near-infrared spectroscopy for evaluating the intestinal oxygenation and viability in rats

Usefulness of a finger-mounted tissue oximeter with near-infrared spectroscopy for evaluating the intestinal oxygenation and viability in rats

Ultrasonographic Evaluation of Gastro-intestinal Dysfunction in Rescued Olive Ridley Sea Turtles (Lepidochelys olivacea)

Consistency of Trans-Abdominal and Water-Immersion Ultrasound Images of Diseased Intestinal Segments in Crohn’s Disease

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