Study on the Dynamic Changes in Chest CT Findings of COVID-19 Rehabilitated Patients

2020 ◽  
pp. 1-7
Keyword(s):  
Disease Progression ◽  
Onset Time ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Ground Glass ◽  
Dynamic Changes ◽  
Course Of Disease ◽  
Pleural Thickening ◽  
Ct Findings ◽  
Interlobular Septal Thickening

Objective: To study the dynamic changes in CT findings in COVID-19 (coronavirus disease-19, COVID-19) rehabilitated patients. Methods: A total of 148 chest CT images of 37 patients with COVID-19 were collected. In the first 21 days of the course of disease, 7 stages were performed every 3 days, and the eighth stage was performed after 21 days. Results: In the first chest CT examination, 19 cases were ground glass opacity, and 18 cases were high-density shadows with consolidation. The lesion shape was flaky and patchy in 33 cases. The percentage of consolidation, air bronchogram, fiber cord, interlobular septal thickening, subpleural line and pleural thickening were the highest on days 4-6, 7-9, 7-9, 10-12, 19-21 and 19-21, respectively. The highest percentage of disease progression was 80.00% on days 4-6, and then the percentage of disease progression gradually decreased with the extension of the onset time. The percentage of patients with improvement gradually increased from days 4-6, reaching 83.33% on days 16-18 and 100.00% on day 21. The percentage of lesion range enlargement and density increase was the highest on days 4-6, both of which were 60.00%，Then the percentage of both decreased gradually. The percentage of patients with lesion range reduction and density absorption dilution increased gradually with the onset time. There was no obvious regularity in the number of lesions. Conclusion: Patients with COVID-19 have regular changes in their lung conditions.

scholarly journals Dynamic Changes of Chest CT Follow-up In Coronavirus Disease-19 (COVID-19) Pneumonia: Relationship To Clinical Typing

2020 ◽  
Author(s):  
Nian Liu ◽  
Guanghong He ◽  
Xiongxiong Yang ◽  
Jianxin Chen ◽  
Jie Wu ◽  
...  
Keyword(s):  
Severity Score ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Critical Group ◽  
Occurrence Rate ◽  
Dynamic Changes ◽  
Pleural Thickening ◽  
The Third ◽  
The Right

Abstract Background To investigate the CT changes of different clinical types of COVID-19 pneumonia. Methods This retrospective study included 50 patients with COVID-19 from 16 January 2020 to 25 February 2020. We analyzed the clinical characteristics, CT characteristics and the pneumonia involvement of the patients between the moderate group and the severe and critical group, and the dynamic changes of severity with the CT follow-up time. Results There were differences in the CT severity score of the right lung in the initial CT, and total CT severity score in the initial and follow-up CT between the moderate group and the severe and critical group (all p < 0.05). There was a quadratic relationship between total CT severity score and CT follow-up time in the severe and critical group (r2 = 0.137, p = 0.008), the total CT severity score peaked at the second follow-up CT. There was no correlation between total CT severity score and CT follow-up time in the moderate group (p > 0.05). There were no differences in the occurrence rate of CT characteristics in the initial CT between the two groups (all p > 0.05). There were differences in the occurrence rate of ground-glass opacity and crazy-paving pattern in the second follow-up CT, and pleural thickening or adhesion in the third follow-up CT between the two groups (all p < 0.05). Conclusions The CT changes of COVID-19 pneumonia with different severity were different, and the extent of pneumonia involvement by CT can help to assess the severity of COVID-19 pneumonia rather than the initial CT characteristics.

scholarly journals Dynamic Changes of Chest CT Follow-up In Coronavirus Disease-19 (COVID-19) Pneumonia: Relationship To Clinical Typing

2020 ◽  
Author(s):  
Nian Liu ◽  
Guanghong He ◽  
Xiongxiong Yang ◽  
Jianxin Chen ◽  
Jie Wu ◽  
...  
Keyword(s):  
Severity Score ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Critical Group ◽  
Occurrence Rate ◽  
Dynamic Changes ◽  
Pleural Thickening ◽  
The Third ◽  
The Right

Abstract Background: To investigate the CT changes of different clinical types of COVID-19 pneumonia. Methods: This retrospective study included 50 patients with COVID-19 from 16 January 2020 to 25 February 2020. We analyzed the clinical characteristics, CT characteristics and the pneumonia involvement of the patients between the moderate group and the severe and critical group, and the dynamic changes of severity with the CT follow-up time. Results: There were differences in the CT severity score of the right lung in the initial CT, and total CT severity score in the initial and follow-up CT between the moderate group and the severe and critical group (all p <0.05). There was a quadratic relationship between total CT severity score and CT follow-up time in the severe and critical group (r2=0.137, p=0.008), the total CT severity score peaked at the second follow-up CT. There was no correlation between total CT severity score and CT follow-up time in the moderate group (p >0.05). There were no differences in the occurrence rate of CT characteristics in the initial CT between the two groups (all p >0.05). There were differences in the occurrence rate of ground-glass opacity and crazy-paving pattern in the second follow-up CT, and pleural thickening or adhesion in the third follow-up CT between the two groups (all p <0.05). Conclusions: The CT changes of COVID-19 pneumonia with different severity were different, and the extent of pneumonia involvement by CT can help to assess the severity of COVID-19 pneumonia rather than the initial CT characteristics.

scholarly journals COVID-19 pneumonia: The first two chest CTs in the Bamrasnaradura Infectious Disease Institute

2020 ◽  
pp. 69-81
Author(s):  
Panyaros Kongpanya ◽  
Parichut Vongthawatchai ◽  
Priyanut Atiburanakul ◽  
Nayot Panitanum ◽  
Patama Suttha
Keyword(s):  
Infectious Disease ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Lung Involvement ◽  
Chest Computed Tomography ◽  
Ct Findings ◽  
Infectious Disease Institute ◽  
The World ◽  
Bilateral Lung ◽  
Interlobular Septal Thickening

Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), continues to spread rapidly around the world. We reported the first two cases of COVID-19 pneumonia who had the chest computed tomography (CT) performed at the Bamrasnaradura Infectious Disease Institute (BIDI). The chest CT findings in the two patients with COVID-19 pneumonia showed bilateral lung involvement, multifocal involvement, peripheral distribution, ground glass opacity (GGO), consolidation and GGO with interlobular septal thickening (“crazy-paving” pattern). The chest CT findings in these patients are nonspecific and overlapped with other diseases.

scholarly journals Early Computed Tomography Findings of Novel Coronavirus Disease 2019 (COVID-19) Pneumonia

2020 ◽  
Vol 15 (5) ◽  
Author(s):  
Pinar Diydem Yilmaz ◽  
Cengiz Kadiyoran ◽  
Suleyman Bakdik ◽  
Necdet Poyraz ◽  
Hulya Vatansev
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Imaging Modality ◽  
Ground Glass Opacity ◽  
Ground Glass ◽  
Pleural Thickening ◽  
Halo Sign ◽  
Ct Findings ◽  
Novel Coronavirus ◽  
Ct Features

Background: Novel coronavirus disease (COVID-19) pneumonia is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is highly contagious and threatens human health. Chest computed tomography (CT) is an accurate imaging modality for diagnosis and follow-up. Objectives: To investigate early CT features of COVID-19 pneumonia. Methods: Retrospective study. Sixty-three patients with COVID-19 pneumonia (28 men, 35 women; age range, 21 - 85 years; mean, 59 years) confirmed by reverse transcription-polymerase chain reaction (RT-PCR) were enrolled in this retrospective study and CT findings were evaluated. Patients were classified into three groups for estimating COVID-19 pneumonia, according to CT features. Results: Nineteen (30%) patients classified as out of COVID-19 pneumonia had normal CT findings. Twenty-eight (44%) patients, classified as highly suggestive for COVID-19 pneumonia, had typical findings for COVID-19 pneumonia. In highly suggestive for COVID-19 pneumonia group most common CT features were peripheral (64%), multilobar (96%), patchy, and round (54%) ground-glass opacity (GGO) (57%). Air bronchogram (93%), crazy-paving patterns (79%), and vascular thickening (61%) were the most common special findings. We only detected these rare findings such as halo sign, reverse halo sign, lymphadenopathy, pleural and pericardial effusion, pleural thickening, and fibrotic lines in patients with COVID-19 with chronic diseases. Conclusions: The early CT findings are peripheral, multilobar, patchy, and round ground glass opacities accompanied by vascular thickening, crazy-paving pattern, or air bronchogram sign. Rare findings are only seen in the presence of concomitant diseases.

Chest Computed Tomography Findings in a Case Series of Coronavirus Disease 2019 (COVID-19) Patients at Siriraj Hospital

2021 ◽  
Vol 104 (5) ◽  
pp. 866-871
Keyword(s):  
Computed Tomography ◽  
Medical Records ◽  
Case Series ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Ground Glass ◽  
Chest Computed Tomography ◽  
Ct Findings ◽  
Siriraj Hospital ◽  
Chest Ct Scan

Background: Recent evidence has demonstrated the high sensitivity of chest computed tomography (CT) in coronavirus disease 2019 (COVID-19) case detection. However, considering the cost and infection control issues, the experience of chest CT for COVID-19 diagnosis in Thailand is still limited. Objective: To present the characteristics of chest CT findings in COVID-19 patients at Siriraj Hospital and compare them with other reports. Materials and Methods: The authors retrospectively reviewed the COVID-19 patients’ medical records between April and May 2020. All cases with the presence of chest CT performed during admission were recruited. Clinical data were retrieved from the patients’ medical records. All chest imaging results were reported by consensus between the authors. Results: From 103 cases, four cases with a chest CT scan during the admission were recruited. Consistent with previous reports, the common chest CT findings included a ground-glass opacity and consolidation with bilateral involvement. A round-shaped ground-glass opacity or consolidation was evidenced in half of the cases. The only case with the presence of chest CT scan, which was done 77 days after the onset of COVID-19 symptoms, revealed resolution of the abnormal findings. Conclusion: Chest CT findings in four COVID-19 cases at Siriraj Hospital are consistent with previous reports. Common findings include bilateral ground-glass opacity and consolidation. Keywords: COVID-19, SARS-CoV-2, Computed tomography, Case series

Clinical Value of COVID-19 Chest Radiography and High-Resolution CT Examination

2021 ◽  
Vol 18 ◽  
Author(s):  
Dan Wang ◽  
Yalei Shang ◽  
Yuehua Chen ◽  
Jianguo Xia ◽  
Weizhong Tian ◽  
...  
Keyword(s):  
Intraclass Correlation ◽  
Stage Iv ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Disease Stage ◽  
Ground Glass ◽  
Clinical Value ◽  
Ct Findings ◽  
Pulmonary Manifestations ◽  
The Common

Background: Novel coronavirus disease 2019 (COVID-19) pneumonia remains a matter of concern. Chest CT findings of COVID-19 pneumonia have been reported widely, while there is relatively rare research on chest X-ray (CXR). Objective: The study was aimed to compare the CXR and chest CT findings of patients with confirmed COVID-19 infection and to explore their respective clinical values. Methods: 28 inpatients with COVID-19 pneumonia who underwent both CXR and CT were included. The pulmonary manifestations of the lesions were recorded. Ground-glass opacity (GGO), consolidation, and fibrosis were quantified in CXR and chest CT separately. Consistency was analyzed using Fleiss' kappa and intraclass correlation coefficient. The stages of the disease in CXR and chest CT were evaluated. Results: Approximately 67.9% (19/28) of subjects had abnormal findings on CXR. The common manifestations in CXR were ground-glass opacities (GGO) (100%, 19/19) and consolidation (68.4%, 13/19). 92.9% (26/28) of patients had abnormal manifestations on CT. The common manifestations in CT were GGO (88.5%, 23/26), consolidation (69.2%, 18/26), reticular opacity (69.2%, 18/26) and nodule (46.2%, 12/26). Among the abnormalities between CXR and CT, only consolidation was consistent (κ=0.510). GGO (ICC=0.501) and consolidation (ICC=0.431) scores were consistent in CXR and chest CT. The results of staging were the same in 14 cases, most of them were in stage I and stage II. While in other cases with inconsistent results, CT was more advanced in the disease stage than CXR, mainly stage III and stage IV. Conclusion: CXR is helpful to observe the change of the pulmonary lesions in patients with confirmed COVID-19 pneumonia. CT can be used for early diagnosis and staging of lesions.

scholarly journals Dynamic Changes of Chest CT Follow-up In Coronavirus Disease-19 (COVID-19) Pneumonia: Relationship To Clinical Typing

2020 ◽  
Author(s):  
Nian Liu ◽  
Guanghong He ◽  
Xiongxiong Yang ◽  
Jianxin Chen ◽  
Jie Wu ◽  
...  
Keyword(s):  
Severity Score ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Critical Group ◽  
Occurrence Rate ◽  
Dynamic Changes ◽  
Pleural Thickening ◽  
The Third ◽  
The Right

Abstract Background: To investigate the CT changes of different clinical types of COVID-19 pneumonia. Methods: This retrospective study included 50 patients with COVID-19 from 16 January 2020 to 25 February 2020. We analyzed the clinical characteristics, CT characteristics and the pneumonia involvement of the patients between the moderate group and the severe and critical group, and the dynamic changes of severity with the CT follow-up time. Results: There were differences in the CT severity score of the right lung in the initial CT, and total CT severity score in the initial and follow-up CT between the moderate group and the severe and critical group (all p <0.05). There was a quadratic relationship between total CT severity score and CT follow-up time in the severe and critical group (r2=0.137, p=0.008), the total CT severity score peaked at the second follow-up CT. There was no correlation between total CT severity score and CT follow-up time in the moderate group (p >0.05). There were no differences in the occurrence rate of CT characteristics in the initial CT between the two groups (all p >0.05). There were differences in the occurrence rate of ground-glass opacity and crazy-paving pattern in the second follow-up CT, and pleural thickening or adhesion in the third follow-up CT between the two groups (all p <0.05). Conclusions: The CT changes of COVID-19 pneumonia with different severity were different, and the extent of pneumonia involvement by CT can help to assess the severity of COVID-19 pneumonia rather than the initial CT characteristics.

scholarly journals Computed Tomography (CT) Imaging Features of Patients with COVID-19: Systematic Review and Meta-Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Ephrem Awulachew ◽  
Kuma Diriba ◽  
Asrat Anja ◽  
Eyob Getu ◽  
Firehiwot Belayneh
Keyword(s):  
Ground Glass Opacity ◽  
Ct Imaging ◽  
Chest Ct ◽  
Ground Glass ◽  
Cochrane Library ◽  
Imaging Features ◽  
Severe Respiratory Distress ◽  
Ct Findings ◽  
Open Access Journals ◽  
Bilateral Lung

Introduction. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly contagious disease, and its first outbreak was reported in Wuhan, China. A coronavirus disease (COVID-19) causes severe respiratory distress (ARDS). Due to the primary involvement of the respiratory system, chest CT is strongly recommended in suspected COVID-19 cases, for both initial evaluation and follow-up. Objective. The aim of this review was to systematically analyze the existing literature on CT imaging features of patients with COVID-19 pneumonia. Methods. A systematic search was conducted on PubMed, Embase, Cochrane Library, Open Access Journals (OAJ), and Google Scholar databases until April 15, 2020. All articles with a report of CT findings in COVID-19 patients published in English from the onset of COVID-19 outbreak to April 20, 2020, were included in the study. Result. From a total of 5041 COVID-19-infected patients, about 98% (4940/5041) had abnormalities in chest CT, while about 2% have normal chest CT findings. Among COVID-19 patients with abnormal chest CT findings, 80% (3952/4940) had bilateral lung involvement. Ground-glass opacity (GGO) and mixed GGO with consolidation were observed in 2482 (65%) and 768 (18%) patients, respectively. Consolidations were detected in 1259 (22%) patients with COVID-19 pneumonia. CT images also showed interlobular septal thickening in about 691 (27%) patients. Conclusion. Frequent involvement of bilateral lung infections, ground-glass opacities, consolidation, crazy paving pattern, air bronchogram signs, and intralobular septal thickening were common CT imaging features of patients with COVID-19 pneumonia.

scholarly journals COVID-19 pneumonia: The first two chest CTs in the Bamrasnaradura Infectious Disease Institute

2020 ◽  
Vol 21 (2) ◽  
pp. 69-81
Author(s):  
Panyaros Kongpanya ◽  
Parichut Vongthawatchai ◽  
Priyanut Atiburanakul ◽  
Nayot Panitanum ◽  
Patama Suttha
Keyword(s):  
Infectious Disease ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Lung Involvement ◽  
Chest Computed Tomography ◽  
Ct Findings ◽  
Infectious Disease Institute ◽  
The World ◽  
Bilateral Lung ◽  
Interlobular Septal Thickening

Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), continues to spread rapidly around the world. We reported the first two cases of COVID-19 pneumonia who had the chest computed tomography (CT) performed at the Bamrasnaradura Infectious Disease Institute (BIDI). The chest CT findings in the two patients with COVID-19 pneumonia showed bilateral lung involvement, multifocal involvement, peripheral distribution, ground glass opacity (GGO), consolidation and GGOwith interlobular septal thickening (“crazy-paving” pattern). The chest CT findings in these patients are nonspecific and overlapped with other diseases.

scholarly journals Examination of clinical conditions and chest CT images of Covid-19 cases in Turkey; single center study

2021 ◽  
Vol 21 (4) ◽  
pp. 1546-57
Author(s):  
Metin Ocak ◽  
Nur Şimşek Yurt ◽  
Yusuf Can Yurt
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Retrospective Study ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Ground Glass ◽  
Ct Findings ◽  
Single Center Study ◽  
Clinical Conditions ◽  
Ct Finding

Background: In this study, we aim to study the clinical features and chest CT findings of the patients, COVID-19 diagnosis of which are verified. Methods: This retrospective study was conducted on RT-PCR (+) COVID-19 patients who were examined in our hospital's emergency department between March 11, 2020 and June 30, 2020. Results: 326 patients were included in this retrospective study in total. Of the patients, 53.1% and 46.9% are males and females, respectively. The patients applied to the service with the symptoms of shortness of breath at the rate of 21.8% and cough at the rate of 20.6%. The study found that the most frequent abnormal CT finding is ground glass opacity at the rate of 26.7% and it is followed by atelectasis at the rate of 12.3%. Patients in the> 65 age group and patients with COPD comorbidities have significantly higher rates of admission to the intensive care unit. Conclusions: The most frequent findings in examination of pathological chest CT findings are ground glass opacity. The rate of length of intensive care unit stay and mortality is significantly higher in the patients above 65 years old compared to those below 65 years old. Keywords: COVID-19; SARS-CoV-2; Chest CT; Ground Glass Opacity; Dyspnea; Cough

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