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:: Volume 13 - Covid 19 Supplement 2 ::
Caspian J Intern Med 2022, 13 - Covid 19 Supplement 2: 187-192 Back to browse issues page
Chest computed tomography findings in more than 4,000 non-hospitalized suspected COVID-19 patients
Naser Ghaemian , Reza Ghadimi , Soraia Khafri , Simin Mouodi
Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran , dr.mouodi@gmail.com
Abstract:   (1717 Views)
Background: When the first wave of COVID-19 outbreak occurred, the infrastructure for definitive detection of the disease through real-time polymerase chain reaction (RT-PCR) was not yet available in many regions, and a large proportion of suspected patients were inevitably referred to radiology centers to provide a chest CT scan. This research was conducted to describe chest CT characteristics in patients who underwent chest CT during the first weeks of COVID-19 outbreak in Babol, Iran.
Methods: All non-hospitalized suspected COVID-19 patients referred to the state radiologic clinic to perform chest CT from March 8, 2020 to March 28, 2020 have been enrolled in this observational study. All CT scans were reviewed by a faculty member radiologist with approximately 20 years of experience.
Results: Totally, 2,207 (52.3%) men and 2016 (47.7%) women have been examined. Imaging characteristics in 2292 (54.3%) individuals illustrated a highly suggestive sign of COVID-19 infection while 1869 (44.3%) had a normal chest CT scan. 1813 cases (77.00%) had bilateral involvement and 541 cases (23.00%) were infected unilaterally; Also, 1727 (73.36%) patients had left-sided involvement. Lung field involvement in 2036 (86.49%) patients was less than 20%. Ground glass opacity had a sensitivity, specificity, PPV, NPV, LR+ and LR- of 99%, 96%, 96%, 98%, 22 and 0.01, respectively, for categorization of a patient as a COVID-19 case. These values were 99%, 73%, 70%, 99%, 3.72% and 0.01%, respectively for consolidations.
Conclusion: Although, RT-PCR is still introduced as the gold standard method for definite diagnosis, diagnostic accuracy of chest CT in COVID-19 detection is considerable.
Keywords: Tomography, Coronavirus, Diagnosis
Full-Text [PDF 188 kb]   (621 Downloads)    
Type of Study: Original Article | Subject: Infectious Diseases
Received: 2021/01/30 | Accepted: 2021/04/6 | Published: 2022/04/6
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Ghaemian N, Ghadimi R, Khafri S, Mouodi S. Chest computed tomography findings in more than 4,000 non-hospitalized suspected COVID-19 patients. Caspian J Intern Med 2022; 13 :187-192
URL: http://caspjim.com/article-1-2742-en.html

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Volume 13 - Covid 19 Supplement 2 Back to browse issues page
Caspian Journal of Internal Medicine
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