{
  "abstract": "Introduction In diffuse interstitial lung disease (ILD) the gold standard imaging technique is chest computed tomography (CT) but less invasive techniques such as ultrasound are being considered for screening and follow-up of these patients.Aim To analyse the first 54 ultrasounds in ILD performed in our Unit.Methods Patients referred for ultrasound assessment (January 2023-July 2024). Data were collected from functional respiratory tests, radiological study with CT and the results obtained in the lung ultrasound. Patients were classified as mild, moderate and severe according to the Warrick scale for chest CT and the Bologna Ultrasound for Diffuse Alveolar Disease (BUDA) scale.Results 54 patients (5.9% male), mean age 71±9 years. The table 1 shows the most frequent pathologies and ultrasound characteristics. Pulmonary function of our patients (averages): FVC 2283 ±877 ml, FVC% 71±18%, FEV1 1855±660 ml, FEV1% 76±18%, FEV1/FVC 82±9%, DLCO 3.29±1.65 ml/min/mmHg, DLCO% 49±21%. Radiologically 68.5% had a pattern compatible with UIP while 31.5% had a NINE pattern.When applying the Warrick index the patients were classified as: 11.1% mild, 50% moderate and 38.9% severe. When classified with the ultrasound score (BUDA index): 35.8% mild, 28.3% moderate and 35.8% severe.We found a moderate negative correlation between DLCO and average B lines (r = -0.408) and a slight negative correlation between DLCO and areas with irregular pleura (r = -0.292) and Warrick Score (r = -0.292), having statistical significance (<0.05).Conclusions ILD has a number of typical ultrasound features and can be used as a clinical tool for the diagnosis and follow-up due to its low cost, availability and absence of radiation, but further studies are needed to standardise the technique.The best radiological/ultrasound correlation is in cases of severe involvement.Abstract S158 Table 1Ultrasound characteristics according to interstitial pathology ILD (n=54) AVERAGE B LINES PER AREA AREA AREAS WITH IRREGULAR PLEURA PLEURAGE WITH REDUCED GLIDING Idiopathic pulmonary fibrosis (30) 4.1±2.7 4.5±2.6 11 patients (36.7%) Hypersensitivity pneumonitis (14) 4.8±2.7 3.1±2.1 3 p. (21.4%) Rheumatoid arthritis (6) 5.4±2.9 5.5±1.9 1 p. (16.7%) Fibroenfisema (1) 8.6 8 0 p. (0%) Sarcoidosis (1) 3.1 1 1 p. (100%) Unclassifiable (1) 6.5 5 0 p. (0%) Scleroderma (1) 5.8 4 1 p. (100%)",
  "authors": [
    {
      "affiliations": [
        "Pneumology Service. Hospital La Axarquía, Vélez Málaga, Spain"
      ],
      "name": "EJ Soto Hurtado"
    },
    {
      "affiliations": [
        "Pneumology Service, Hospital Regional Universitario, Málaga, Spain"
      ],
      "name": "E Salcedo Lobera"
    },
    {
      "affiliations": [
        "Pneumology Service, Hospital Regional Universitario, Málaga, Spain"
      ],
      "name": "J Martínez Molina"
    }
  ],
  "title": "S158 Applications of lung ultrasound in interstitial diseases",
  "uid": "03982c0e-4e5b-5b0e-b846-96763d02b459"
}