{
  "abstract": "AimsTo assess reproducibility and repeatability of quadriceps femoris muscle (QFM) thickness measured by 2D ultrasound (US) and evaluate its potential as a tool to detect risk of malnutrition in heart failure (HF) outpatients.\n\nMethodsThirty HF participants (malnourished n=16; well-nourished n=14) were recruited. Malnutrition was assessed using the GLIM tool (reference method). QFM thickness was measured at two points (mid-point and 2/3-point). We conducted paired T-tests to assess differences in QFM thickness according to leg side (left vs. right), condition of measure (with vs. without probe pressure), inter- and intra-operators. Intraclass coefficients (ICC) were used to test intra- and inter-operator agreement.\n\nResultsAnalyses showed no differences for most comparisons (total of 48). The midpoint was different in 4 comparisons, 2/3 point for none. ICC analyses ranged from 0.943 to 0.996 for intra- and inter-operator analyses. The best result from the ROC analyses was for the 2/3 QFM point with no probe pressure (AUC 0.74), with a specificity of 43% and sensitivity of 100%.\n\nConclusionOur preliminary results suggest that 2D - US QFM thickness, measured at the two-thirds point without pressure, is a reproducible and repeatable measurement. QFM thickness also showed good ability to differentiate between nutritional statuses and to rule out malnutrition (high sensitivity). These findings indicate it as a practical initial screening tool for identifying patients who do not need further investigation. However, these preliminary findings need to be confirmed in a larger sample of patients.",
  "abstract_shown": true,
  "affiliations": [
    "Acoeurlab Research Unit - Research Center of the Hospital of Montreal University (CRCHUM), Montreal, Quebec, Canada. Acoeurlab Research Unit; Research Institute"
  ],
  "article_type": "PUBLISHAHEADOFPRINT",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "P. A B Ribeiro"
    },
    {
      "name": "P. Zuchinalli"
    },
    {
      "name": "Z. Carrier"
    },
    {
      "name": "O. Nguyen"
    },
    {
      "name": "A.-S. Zenses"
    },
    {
      "name": "G. Corra Souza"
    },
    {
      "name": "F. Tournoux"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2yv4h398b9fxe.bib",
  "cited_by": 0,
  "doi": "10.64898/2026.09.02.26362047",
  "fulltext_url": "https://www.medrxiv.org/content/10.64898/2026.09.02.26362047v1.full",
  "id": "2yv4h398b9fxe",
  "issns": [],
  "landing_url": "https://www.medrxiv.org/content/10.64898/2026.09.02.26362047v1",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "medrxiv",
      "cardiovascular medicine"
    ],
    [
      "openalex",
      "2737|Nutrition and Health in Aging"
    ]
  ],
  "openalex": "W7211873772",
  "pdf_url": "https://www.medrxiv.org/content/10.64898/2026.09.02.26362047v1.full.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2yv4h398b9fxe.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:51Z",
      "native_id": "10.64898/2026.09.02.26362047",
      "source": "medrxiv",
      "url": "https://www.medrxiv.org/content/10.64898/2026.09.02.26362047v1"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "medrxiv:cardiovascular medicine",
      "subfield": "cardiovascular"
    }
  ],
  "title": "ULTRASOUND OF QUADRICEPS FEMORIS AS A RULE-OUT TOOL FOR MALNUTRITION SCREENING IN HEART FAILURE CLINICS",
  "title_text": "ULTRASOUND OF QUADRICEPS FEMORIS AS A RULE-OUT TOOL FOR MALNUTRITION SCREENING IN HEART FAILURE CLINICS",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:51Z",
  "url": "https://research.draconitic.com/paper/2yv4h398b9fxe",
  "venue": "medRxiv",
  "versions": []
}