Journal article

CT evaluation of lung infiltrates in the two months preceding the Coronavirus disease 19 pandemic in Canton Ticino (Switzerland) : were there suspicious cases before the official first case?

  • Rizzo, Stefania ORCID Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland - Facoltà Di Scienze Biomediche, Università della Svizzera italiana (USI), Lugano, Switzerland
  • Catanese, Carola Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
  • Puligheddu, Carla Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
  • Epistolio, Samantha ORCID Istituto Cantonale Di Patologia (ICP), Ente Ospedaliero Cantonale (EOC), Locarno, Switzerland
  • Ramelli, Giulia Istituto Cantonale Di Patologia (ICP), Ente Ospedaliero Cantonale (EOC), Locarno, Switzerland
  • Frattini, Milo Istituto Cantonale Di Patologia (ICP), Ente Ospedaliero Cantonale (EOC), Locarno, Switzerland
  • Pereira Mestre, Ricardo Service of Medical Oncology, Oncology Institute of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
  • Nadarajah, Navarajah Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
  • Rezzonico, Ermidio Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
  • Magoga, Francesco Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
  • Milan, Lisa ORCID Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
  • Del Grande, Filippo Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland - Facoltà Di Scienze Biomediche, Università della Svizzera italiana (USI), Lugano, Switzerland
  • Giovanella, Luca Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland - University Hospital of Zurich, Zurich, Switzerland
  • Ceriani, Luca ORCID Imaging Institute of Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland - Facoltà Di Scienze Biomediche, Università della Svizzera italiana (USI), Lugano, Switzerland
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  • 2022
Published in:
  • La radiologia medica. - 2022, vol. 127, p. 360–368
English Purpose: The main objective of this study was to assess the presence of pulmonary infltrates with computed tomography (CT) appearance compatible with infection by coronavirus disease 2019 (COVID-19), in Canton Ticino in the 2 months preceding the frst ofcial case. Secondary aims were to compare the classifcation of infltrates in the same time frame in 2020 and 2019; to compare the number of chest CT scans in the same period; to search for pathological confrmation of the virus. Materials and methods: Chest CT scans performed between January 1 and February 24 in 2019 and 2020 were collected and classifed by COVID-19 Reporting and Data System (CO-RADS). Pathological presence of the virus was searched for when appropriate material was available. Results: The fnal cohort included 881 patients. Among the CO-RADS 3 and 4 categories, 30 patients had pneumonitis of unknown etiology. Pathological specimens were available in six patients but they were negative for COVID-19. Conclusion: Before the frst ofcial case of COVID-19 infection, in Canton Ticino there were about 30 cases of pneumonitis of uncertain origin, with CT appearance compatible with infection by COVID-19, but with no confrmation of the disease. The number of chest CT scans in the frst two months of 2020 was >12% compared to 2019.
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Language
  • English
Classification
Medicine
License
CC BY
Open access status
hybrid
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Persistent URL
https://n2t.net/ark:/12658/srd1325626
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