Publications by authors named "Celine Savoye-Collet"

Background: Sarcopenia, defined by a loss of skeletal muscle mass and function, has been identified as a prevalent condition associated with poor clinical outcome among critically ill patients. This study aims to evaluate the impact of pre-existing sarcopenia on outcomes in critically ill patients with acute respiratory failure (ARF) due to COVID-19.

Material And Methods: A retrospective study was carried out on COVID-19 patients admitted to intensive care.

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Purpose: To evaluate the effectiveness of ultra-fast two-dimensional (2D) T2*-weighted multi-shot echo-planar imaging (MS-EPI) for the detection of cerebral microbleeds (CMB) in cognitive disorders.

Methods: Sixty-eight patients referred for neuroimaging to investigate cognitive disorders underwent 3 T MR imaging, with both 2D T2*-weighted MS-EPI and susceptibility-weighted angiography (SWAN). Microbleeds were separately assessed on 2D T2*-weighted MS-EPI and SWAN by 2 raters.

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  • The 2023 SFR data challenge aimed to encourage researchers to create AI models for detecting pancreatic masses and determining if they are benign or malignant using abdominal CT scans.
  • A total of 1,037 CT examinations were gathered from 18 French centers, organized into training and evaluation sets, with teams composed of radiologists, data scientists, and engineers participating in the analysis.
  • The challenge involved 10 teams and showed promising results, with AI demonstrating potential in identifying pancreatic lesions from real data, although distinguishing between benign and malignant masses remains challenging.
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Purpose: Perianal fistulae are disabling complications of Crohn's Disease. Magnetic resonance imaging features could predict treatment response. This study aimed to determine which magnetic resonance imaging features were predictive of long-term clinical outcome in real life.

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  • The purpose of the study was to create standardized guidelines for using MRI in restaging rectal cancer, emphasizing data collection, image analysis, and reporting.
  • Experts combined evidence and opinions to reach a consensus on reporting templates and data acquisition protocols using the RAND-UCLA Appropriateness Method.
  • The final outcome included an agreement on patient preparation, MRI sequences, and staging, leading to tailored MRI protocols and a standardized reporting template for clinical use.
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  • * Conducted over a year, the research involved 1501 patients without known chronic liver disease; 33.6% of these showed positive signs for fibrosis, leading to further testing and specialist referrals.
  • * The findings suggest that using these simple ultrasound indicators can effectively identify hepatic fibrosis in the general population, resulting in appropriate referrals for further evaluation and treatment.
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Background: The aim of the study was to prospectively evaluate different biomarkers to identify the most reliable for anticipating complications after major abdominal surgery for digestive cancer in older patients and compare their performance to the existing definition and screening algorithm of sarcopenia from EWGSOP.

Methods: Ninety-five consecutive patients aged over 65 years who underwent elective surgery for digestive cancer were prospectively included in the SAXO study. Sarcopenia was defined according to EWGSOP criteria (four level from no sarcopenia to severe sarcopenia).

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Aim: Faecal incontinence (FI) subtypes (urge, passive, mixed) are linked to the physiopathological mechanism of FI. Previous studies have failed to demonstrate a consistent relationship between FI subtype and anal sphincter dysfunction. Our aim was to evaluate the relationship between anal sphincter function, assessed using the new EndoFLIP® technology, and FI subtype.

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Objective: To provide guidelines for the management of the intensive care patient with severe acute pancreatitis.

Design: A consensus committee of 22 experts was convened. A formal conflict-of-interest (COI) policy was developed at the beginning of the process and enforced throughout.

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  • A group of French experts developed standardized guidelines for staging rectal cancer using MRI, aiming to improve data acquisition, image interpretation, and reporting practices.
  • They utilized an evidence-based approach alongside expert opinions from two notable research groups to create consensus guidelines, employing the RAND-UCLA Appropriateness Method to gauge agreement on various reporting templates.
  • The final recommendations cover patient preparation, MRI sequence selection, and standardized reporting, providing a structured guide for rectal cancer staging with MRI.
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Pre-pubertal murine models of acute colitis are lacking. Magnetic resonance colonography (MRC) is a promising minimally invasive tool to assess colitis. We aimed to: 1/ Adapt a model of acute experimental colitis to pre-pubertal rats and determine whether MRC characteristics correlate with histological inflammation.

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Transarterial chemoembolization (TACE) is used to treat patients with unresectable hepatocellular carcinoma (HCC). We evaluated the clinical impact of a-fetoprotein (AFP) and circulating cell-free and tumor DNA (cfDNA and ctDNA) changes around the TACE procedure. Our prospective monocentric study enrolled consecutive patients treated with TACE, with samples collected at baseline (D - 1), Day 2 (D + 2) and 1 month (M + 1) after TACE.

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Background: Crohn's disease (CD) is a chronic disorder with frequent complications. The objective of this study was to assess the predictive factors of finding a complication of CD using abdominopelvic CT-scan in patients with a visit to the emergency department.

Methods: Patients with at least one visit to the gastroenterology department of our University hospital during the year with a CD were retrospectively included.

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Background: Pediatric Crohn's disease is characterized by a higher incidence of complicated phenotypes. Murine models help to better understand the dynamic process of intestinal fibrosis and test therapeutic interventions. Pre-pubertal models are lacking.

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Background: Body composition, currently evaluated by computed tomography scan, is related to poor evolution and severity of Crohn's disease (CD). Few MRI studies have been performed, yet it is the most commonly used imaging modality for the surveillance of the disease.

Aim: Evaluate the feasibility of MRI body composition measurement and compare the variation according to the activity of the disease.

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Introduction: The aim of our study is to describe MRI appearance of a posterior rectal pouch (PRP) for patients managed for low rectal endometriosis by large full-thickness disc excision and to assess its relationship with postoperative functional digestive symptoms.

Material And Methods: Single center retrospective study including patients managed by low/mid rectal disc excision using a semi-circular stapler (the Rouen technique) from June 2009 to October 2016. Intraoperative findings and data provided by standardized gastrointestinal self-questionnaires (GIQLI, KESS, Wexner and Bristol), before and 1 year after the surgery, were prospectively recorded.

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Background & Aims: Higher infliximab trough levels are associated with clinical and endoscopic remission in patients with Crohn's disease (CD). We investigated pharmacodynamic features of infliximab and radiological healing.

Methods: We performed a substudy of the TAILORIX trial (patients with active luminal CD in Europe, treated with infliximab), analyzing baseline and week 54 magnetic resonance enterography (MRE) data.

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Background/purpose: Two-stage hepatectomy (TSH), is associated with a risk of drop-out due to tumoral progression following portal vein occlusion (PVO). We explored the impact of majorhepatectomy on tumor growth by objective radiological measures comparing to PVO and minor hepatectomy, using a model of bilobar colorectal liver metastasis (CLM).

Methods: CLM were induced in 48 BDIX rats by injection of DHDK12-cells.

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Background: The long-term management of perianal Crohn's disease for patients on anti-TNF-α therapy remains challenging.

Aim: To evaluate the long-term course and complications of patients with perianal fistulas treated with anti-TNF-α based on their clinical remission and healing on MRI.

Methods: Patients were evaluated clinically and by MRI.

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Background And Aims: Changes in body composition have been described in patients with Crohn's disease, but their predictive performances on disease evolution remain undefined. The aims of our study were to assess, in patients with Crohn's disease requiring abdominal computed tomography, body composition by computed tomography, and to study the outcome according to various body composition parameters at the time of the computed tomography.

Methods: Patients with Crohn's disease who underwent abdominal computed tomography for suspected complications were retrospectively included.

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Aim: To evaluate the imaging course of Crohn's disease (CD) patients with perianal fistulas on long-term maintenance anti-tumor necrosis factor (TNF)-α therapy and identify predictors of deep remission.

Methods: All patients with perianal CD treated with anti-TNF-α therapy at our tertiary care center were evaluated by magnetic resonance imaging (MRI) and clinical assessment. Two MR examinations were performed: at initiation of anti-TNF-α treatment and then at least 2 years after.

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Aim: To assess the feasibility of SPECT-computed tomography (CT) in rats with trinitrobenzene sulfonic acid (TNBS)-induced acute colitis and confront it with model inflammatory characteristics.

Methods: Colitis was induced in Sprague-Dawley rats by intrarectal injection of TNBS ( = 10) while controls received vehicle ( = 10). SPECT-CT with intravenous injection of 10 MBq of 67Ga-Citrate was performed at day 2.

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Background: This study evaluated the association between oral gastrografin administration and the need for operative intervention in patients with presumed adhesive small bowel obstruction.

Methods: Between October 2006 and August 2009, 242 patients with uncomplicated acute adhesive small bowel obstruction were included in a randomized, controlled trial (the Adhesive Small Bowel Obstruction Study, NCT00389116) and allocated to a gastrografin arm or a saline solution arm. The primary end point was the need for operative intervention within 48 hours of randomization.

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Over the past years, technological improvements and refinements in magnetic resonance imaging (MRI) hardware have made high-quality diffusion-weighted imaging (DWI) routinely possible for the bowel. DWI is promising for the detection and characterization of lesions in Crohn's disease (CD) and has been advocated as an alternative to intravenous gadolinium-based contrast agents. Furthermore, quantification using the apparent diffusion coefficient may have value as a biomarker of CD activity and has shown promise.

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