Can chest computed tomography findings be compared between outpatient and hospitalized COVID‐19 patients?

Cabrelle, Giulio; Zanon, Chiara; Crimì, Filippo; Quaia, Emilio

doi:10.1016/j.jmir.2021.12.008

Cited by 4 publications

(7 citation statements)

References 4 publications

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“…Nevertheless, variations in CT protocol parameter settings can significantly impact IQ, posing potential challenges. Problems can arise when patients are transferred between different hospitals or when they receive a follow-up scan months later at a different hospital to investigate any post-infectious parenchymal alterations related to long COVID [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Standardization of a CT Protocol for Imaging Patients with Suspected COVID-19—A RACOON Project

Steuwe,

Kamp,

Afat

et al. 2024

Bioengineering

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CT protocols that diagnose COVID-19 vary in regard to the associated radiation exposure and the desired image quality (IQ). This study aims to evaluate CT protocols of hospitals participating in the RACOON (Radiological Cooperative Network) project, consolidating CT protocols to provide recommendations and strategies for future pandemics. In this retrospective study, CT acquisitions of COVID-19 patients scanned between March 2020 and October 2020 (RACOON phase 1) were included, and all non-contrast protocols were evaluated. For this purpose, CT protocol parameters, IQ ratings, radiation exposure (CTDIvol), and central patient diameters were sampled. Eventually, the data from 14 sites and 534 CT acquisitions were analyzed. IQ was rated good for 81% of the evaluated examinations. Motion, beam-hardening artefacts, or image noise were reasons for a suboptimal IQ. The tube potential ranged between 80 and 140 kVp, with the majority between 100 and 120 kVp. CTDIvol was 3.7 ± 3.4 mGy. Most healthcare facilities included did not have a specific non-contrast CT protocol. Furthermore, CT protocols for chest imaging varied in their settings and radiation exposure. In future, it will be necessary to make recommendations regarding the required IQ and protocol parameters for the majority of CT scanners to enable comparable IQ as well as radiation exposure for different sites but identical diagnostic questions.

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Section: Introductionmentioning

confidence: 99%

Standardization of a CT Protocol for Imaging Patients with Suspected COVID-19—A RACOON Project

Steuwe,

Kamp,

Afat

et al. 2024

Bioengineering

View full text Add to dashboard Cite

show abstract

“…We also thank the editor for allowing us to respond and provide more details about our study. In the mentioned letter to the editor 1 , some potential concerns were noted regarding the factors that may affect the results, including the impact of the time interval between the incidence of symptoms and medical imaging and the possibility of the presence of background lung disease and comorbidities.…”

mentioning

confidence: 99%

“…The first matter that the authors 1 pointed was the lack of information about the time interval between positive reverse transcription-polymerase chain reaction (RT-PCR) and CT scan or between symptom onset and CT. We should have declared that the time interval between RT-PCR and CT scan was less than a week for all patients in both groups. Some previous studies reported the temporal changes of CT findings in the course of COVID-19 disease 3 , 4 .…”

mentioning

confidence: 99%

“…The second concern 1 was about the possibility of presenting underlying lung disease which might worsen the lung engagement and intensify CT findings. We agree that the underlying lung disease and other underlying diseases can affect the severity of the disease and CT findings, as reported in previous studies 5 , 6 .…”

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confidence: 99%

“…The third issue raised in letter 1 was about the presence of background diseases. It should be highlighted that most of the patients with comorbidities were excluded from the study by excluding severe cases in the first imaging.…”

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confidence: 99%

See 2 more Smart Citations

Response to letter to the editor about the comparison of CT findings between outpatient and hospitalized COVID‐19 patients

Zarei

Zeinali-Rafsanjani

2022

Journal of Medical Imaging and Radiation Sciences

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Radiation Overuse in Intensive Care Units: A Cause for Concern

Zanon,

Bini,

Toniolo

et al. 2023

Preprint

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Radiological imaging is essential for acute patient management in Intensive Care Units (ICUs); however, it introduces the risk of exposure to ionizing radiation. This review synthesizes research on radiation exposure in intensive care unit (ICU) settings, highlighting its rise during the COVID-19 pandemic and repetitive imaging. Our analysis extends to radiation safety thresholds, revealing that some ICU patients exceed annual occupational limits, emphasizing the need to balance diagnostic utility against potential long-term risks, such as cancer. Prospective studies have demonstrated an increase in the median Cumulative Effective Dose (CED) in patients with trauma over time, prompting calls for improved awareness and monitoring. Moreover, innovative dose-reduction strategies and optimized protocols, especially in neuro-ICU units, promise to mitigate these risks. This review highlights the essential but risky role of radiological imaging in critical care. It advocates rigorous radiation management protocols to safeguard patient health, while ensuring the continuity of high-quality medical care.

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Can chest computed tomography findings be compared between outpatient and hospitalized COVID‐19 patients?

Cited by 4 publications

References 4 publications

Standardization of a CT Protocol for Imaging Patients with Suspected COVID-19—A RACOON Project

Standardization of a CT Protocol for Imaging Patients with Suspected COVID-19—A RACOON Project

Response to letter to the editor about the comparison of CT findings between outpatient and hospitalized COVID‐19 patients

Radiation Overuse in Intensive Care Units: A Cause for Concern

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