COVID-19 pneumonia: what is the role of imaging in diagnosis?

Araújo-Filho, José de Arimateia Batista; Sawamura, Márcio Valente Yamada; Costa, André Nathan; Cerri, Giovanni G.; Nomura, César Higa

doi:10.36416/1806-3756/e20200114

Cited by 32 publications

(15 citation statements)

References 11 publications

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“…The dissociation between laboratory and tomographic findings may be seen in patients with positive RT-PCR and absence of imaging findings and those with extensive imaging findings and negative RT-PCR (7,20).…”

Section: ' Chest Computed Tomographymentioning

confidence: 99%

Imaging findings in COVID-19 pneumonia

Farias

Fonseca

Strabelli

et al. 2020

Clinics

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The coronavirus disease , caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), emerged in Wuhan city and was declared a pandemic in March 2020. Although the virus is not restricted to the lung parenchyma, the use of chest imaging in COVID-19 can be especially useful for patients with moderate to severe symptoms or comorbidities. This article aimed to demonstrate the chest imaging findings of COVID-19 on different modalities: chest radiography, computed tomography, and ultrasonography. In addition, it intended to review recommendations on imaging assessment of COVID-19 and to discuss the use of a structured chest computed tomography report. Chest radiography, despite being a low-cost and easily available method, has low sensitivity for screening patients. It can be useful in monitoring hospitalized patients, especially for the evaluation of complications such as pneumothorax and pleural effusion. Chest computed tomography, despite being highly sensitive, has a low specificity, and hence cannot replace the reference diagnostic test (reverse transcription polymerase chain reaction). To facilitate the confection and reduce the variability of radiological reports, some standardizations with structured reports have been proposed. Among the available classifications, it is possible to divide the radiological findings into typical, indeterminate, atypical, and negative findings. The structured report can also contain an estimate of the extent of lung involvement (e.g., more or less than 50% of the lung parenchyma). Pulmonary ultrasonography can also be an auxiliary method, especially for monitoring hospitalized patients in intensive care units, where transfer to a tomography scanner is difficult.

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Section: ' Chest Computed Tomographymentioning

confidence: 99%

Imaging findings in COVID-19 pneumonia

Farias

Fonseca

Strabelli

et al. 2020

Clinics

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“…The study of Araujo-Filho et al (2020) states that CT should not be used as a screening for COVID-19 for patients with these symptoms. Its use would be indicated for symptomatic and hospitalized patients, and with a specific clinical event.…”

Section: Computed Tomography (Ct)mentioning

confidence: 99%

“…The techniques currently available for diagnosis are molecular assays, such as reverse-transcriptase polymerase chain reaction (RT-PCR) (Araujo-Filho et al, 2020;Neto et al, 2021), and immunological tests such as Enzyme-Linked Immunosorbent Assay (ELISA) (Zheng et al, 2020). Moreover, there are also imaging tests, which are of great contribution to the diagnosis of disease complications, such as pneumonia and neurological disorders.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, there are also imaging tests, which are of great contribution to the diagnosis of disease complications, such as pneumonia and neurological disorders. On top of that, such tests are relevant for monitoring patients with these complications, as they assist in clinical decision-making and assessment of treatment effectiveness (Araujo-Filho et al, 2020;Huang et al, 2020a). Alongside, Huang et al (2020b) reported the importance of imaging tests for the diagnosis of false-negative patients for covid-19 in laboratory tests.…”

Section: Introductionmentioning

confidence: 99%

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Laboratory findings in imaging diagnostic tests in patients infected with COVID-19 – A study review

Souza

Santos

Melo³

et al. 2021

RSD

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Purpose: This study disseminates the diagnosis of COVID-19 emphasizing the importance of imaging tests in medical interpretation and identification of its complications, besides demonstrating the contribution to patient care. Methodology: The study was conducted based on a literature review, in addition to the acquired results of imaging tests from clinical patients at a Public Hospital of the State of Sergipe, Brazil, to point the scoring system in thorax radiography and compare to computed tomography (CT). Results: The imaging tests are not indicated for patients with mild symptoms and suspected COVID-19 infection, except for risk of disease progression, being indicated in the complementary diagnosis of COVID-19 positive patients. Studies show that thorax radiography is more used because it has low cost and easy access. However, its use has limitations due to the low sharpness of the images and impossibility of visualization of some lesions. Computed tomography, on the other hand, can be used as a pulmonary monitoring and evolution test in patients with COVID-19 worsening and/or persistent homeostatic changes. Nevertheless, this test is not indicated for acute cases without aggravating symptoms. Conclusion: The high degree of dissemination of SARS-CoV-2 and the collapse of health systems demonstrated the importance of the science in health. In addition, the importance of laboratory tests in the diagnosis of virus infection and imaging tests in the early diagnosis of SARS-CoV-2 pneumonia has been shown as efficient complementarity in the evolution and clinical interpretation of patients, highlighting the importance of radiography and CT exams.

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“…However, this test shows high false negative results due to inadequate cellular material or errors in detection and extraction techniques during nasopharyngeal swab sampling [13][14][15]. With an increasing number of infected patients and a shortage of RT-PCR testing kits in affected areas, alternative diagnostic and screening strategies are needed [16]. As such, diagnostic imaging now plays a critical role in identifying and assessing the progression of COVID-19 [17].…”

Section: Introductionmentioning

confidence: 99%

Diagnostic Value of Imaging Modalities for COVID-19: Scoping Review (Preprint)

Aljondi¹,

Al‐Ghamdi²

2020

Preprint

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BACKGROUND Coronavirus disease 2019 (COVID-19) is a serious infectious disease resulting in severe respiratory illness. This pandemic represents a serious public health risk. Therefore, early and accurate diagnosis is essential to control disease progression. Radiological examinations play a crucial role in early identification and management of infected patients. OBJECTIVE To identify the diagnostic value of different imaging modalities used for diagnosis of COVID-19. METHODS A comprehensive literature search was conducted using the PubMed, Scopus, Web of Science, and Google Scholar databases. The keywords diagnostic imaging, radiology, respiratory infection, pneumonia, coronavirus infection and COVID-19 were used to identify radiology articles focusing on the diagnosis of COVID-19 and to determine the diagnostic value of various imaging modalities, including x-ray, computed tomography ultrasound, and nuclear medicine for identification and management of infected patients. RESULTS 50 articles were identified in the literature search. Studies that investigated the diagnostic role and imaging features of patients with COVID-19, using either chest CT, lung ultrasound, chest x-ray, or PET/CT scan, were discussed. Of these imaging modalities, chest x-ray and CT scan are commonly used for diagnosis and management of COVID-19 patients, with chest CT scan being more accurate and sensitive in identifying COVID-19 at early stages. Only a few studies have investigated the role of ultrasound and PET/CT scan in diagnosing COVID-19. CONCLUSIONS Chest CT scan remains the most sensitive imaging modality in initial diagnosis and management of suspected and confirmed patients with COVID-19. Other diagnostic imaging modalities could add value in evaluating disease progression and monitoring of critically ill COVID-19 patients.

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COVID-19 pneumonia: what is the role of imaging in diagnosis?

Cited by 32 publications

References 11 publications

Imaging findings in COVID-19 pneumonia

Imaging findings in COVID-19 pneumonia

Laboratory findings in imaging diagnostic tests in patients infected with COVID-19 – A study review

Diagnostic Value of Imaging Modalities for COVID-19: Scoping Review (Preprint)

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