scholarly journals CT appearances, patterns of progression, and follow-up of COVID-19: evaluation on thin-section CT

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chun-Shuang Guan ◽  
Zhi-Bin Lv ◽  
Jing-Jing Li ◽  
Yan-Ni Du ◽  
Hui Chen ◽  
...  
Keyword(s):  
Pleural Effusion ◽  
Thin Section ◽  
Chest Ct ◽  
Imaging Findings ◽  
Initial Interval ◽  
Pleural Thickening ◽  
Fluctuation Pattern ◽  
Normal Chest ◽  
Peak Pattern

Abstract Background To retrospectively analyze CT appearances and progression pattern of COVID-19 during hospitalization, and analyze imaging findings of follow-up on thin-section CT. Methods CT findings of 69 patients with COVID-19 were evaluated on initial CT, peak CT, and pre-discharge CT. CT pattern were divided into four types on CT progression. Lesion percentage of pulmonary lobe (lobe score) was graded. Correlation analysis was made between scores and intervals. 53 patients were followed up by CT. Results Among 69 patients, 33.3% exhibited improvement pattern, 65.2% peak pattern, 1.5% deterioration pattern, and 0% fluctuation pattern. The lobe scores were positively correlated with most of intervals. It was more common to observe consolidation, pleural thickening and pleural effusion on the peak CT, and irregular line and reticulation on pre-discharge CT. The peak-initial interval were shortened when the initial CT with consolidation and pleural thickening. The intervals were extended when the irregular lines appeared on peak CT and reticulation on pre-discharge CT. Among 53 follow-up patients, 37.7% showed normal chest CT, and 62.3% showed viral pneumonia remained that mainly included GGO (100.0%) and irregular lines (33.3%). Conclusions COVID-19 displayed different appearances on CT as progressing. The peak pattern was the most common progression pattern. The CT appearances showed closely related to the intervals. The COVID-19 pneumonia can be remained or completely absorbed on CT with follow-up.

scholarly journals Analysis of Chest CT Results of Coronavirus Disease 2019 (COVID-19) Patients at First Follow-Up

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Lingshan Zhong ◽  
Shuo Zhang ◽  
Jigang Wang ◽  
Xinqian Zhao ◽  
Kai Wang ◽  
...  
Keyword(s):  
Ground Glass Opacity ◽  
Chest Ct ◽  
Ground Glass ◽  
Imaging Data ◽  
Exclusion Criteria ◽  
Pulmonary Lesions ◽  
Normal Chest ◽  
Time Of Admission ◽  
Better Than

Objective. To investigate the dissipation and outcomes of pulmonary lesions at the first follow-up of patients who recovered from moderate and severe cases of COVID-19. Methods. From January 21 to March 3, 2020, a total of 136 patients with COVID-19 were admitted to our hospital. According to inclusion and exclusion criteria, 52 patients who recovered from COVID-19 were included in this study, including 33 moderate cases and 19 severe cases. Three senior radiologists independently and retrospectively analyzed the chest CT imaging data of 52 patients at the last time of admission and the first follow-up after discharge, including primary manifestations, concomitant manifestations, and degree of residual lesion dissipation. Results. At the first follow-up after discharge, 16 patients with COVID-19 recovered to normal chest CT appearance, while 36 patients still had residual pulmonary lesions, mainly including 33 cases of ground-glass opacity, 5 cases of consolidation, and 19 cases of fibrous strip shadow. The proportion of residual pulmonary lesions in severe cases (17/19) was statistically higher than in moderate cases (19/33) ( χ 2   =   5 . 759 , P < 0.05 ). At the first follow-up, residual pulmonary lesions were dissipated to varying degrees in 47 cases, and lesions remained unchanged in 5 cases. There were no cases of increased numbers of lesions, enlargement of lesions, or appearance of new lesions. The dissipation of residual pulmonary lesions in moderate patients was statistically better than in severe patients (Z = −2.538, P < 0.05 ). Conclusion. Clinically cured patients with COVID-19 had faster dissipation of residual pulmonary lesions after discharge, while moderate patients had better dissipation than severe patients. However, at the first follow-up, most patients still had residual pulmonary lesions, which were primarily ground-glass opacity and fibrous strip shadow. The proportion of residual pulmonary lesions was higher in severe cases of COVID-19, which required further follow-up.

scholarly journals Incidental finding of bronchial diverticula in a non-smoker population: evaluation on thin-section CT

2016 ◽  
Vol 81 (1-2) ◽  
Author(s):  
Federica Ciccarese ◽  
Giorgio Garzillo ◽  
Anna Maria Chiesa ◽  
Antonio Poerio ◽  
Serena Baroncini ◽  
...  
Keyword(s):  
Thin Section ◽  
Healthy Subjects ◽  
Respiratory Symptoms ◽  
Incidental Finding ◽  
Radiological Finding ◽  
Chest Ct ◽  
Lobe Bronchus ◽  
Significant Difference ◽  
The Right

<p>Bronchial diverticula have been described as a common radiological finding in smoker patients with COPD, but the specificity of this sign should be further investigated. Thus, the aim of our study was to evaluate the prevalence of diverticula in a cohort of non-smoker subjects. Between February and July 2012, 2438 patients were admitted to our Radiology Unit to undergo a chest CT. Among them, we enrolled 121 non-smoking patients (78/121-64.5% females, 43/121-35.5% males), of different age (57.0±20.7 years-range: 12-88), without any respiratory symptoms, submitted to chest CT for several reasons (oncologic evaluation: 59/121-48.8%; follow up of lung nodules: 27/121-22.3%; screening in connectivitis: 12/121-9.9%; others: 23/121-19.0%). We considered thin-section CT scan on axial, coronal and sagittal plans to evaluate prevalence, numbers and level of bronchial diverticula. Diverticula were found in 41/121-33.9% patients, with a slight major prevalence in males (p=0.048), but no significant difference on age. In 31/41-75.6% the number was &lt;3, whereof 17/31-54.8% with just one diverticulum assessed. Regarding the level, in 30/41-73.2% they were subcarinal, but they were also detected in mainstem (2/41-4.9%) and lobar bronchi (with the right upper lobe bronchus most frequently involved- 12/41-29.3%). Bronchial diverticula can be observed in non-smokers, as well as in smoker patients with COPD. However, their prevalence seems to be lower than in smokers and they tend to be isolated and subcarinal. The age of patients does not influence their finding. More studies should be proposed to better define a cut-off between smokers and healthy subjects.</p>

scholarly journals Complications and residual pleural thickening after intrapleural instillation of streptokinase with pigtail catheter drainage of tuberculous pleural effusion

2019 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Sandeepa H. S. ◽  
Narendra U. ◽  
Gajanan S. Gaude ◽  
Supriya Sandeepa
Keyword(s):  
Pleural Effusion ◽  
Total Duration ◽  
Control Group ◽  
Study Group ◽  
Pigtail Catheter ◽  
Catheter Drainage ◽  
Female Ratio ◽  
Tuberculous Pleural Effusion ◽  
Pleural Thickening

Background: Tuberculosis is the most common cause of exudative lymphocytic pleural effusion in India. Residual pleural thickening (RPT) is observed in about 50 percent of patients even after proper treatment with ATT. Pleural fluid drainage either with simple aspiration or with intercostal drainage and addition of corticosteroids along with antitubercular drugs have not shown to influence the incidence of RPT. The present study was undertaken to study the complications and residual effects of tubercular pleural effusion on the patients during the follow up period following intrapleural streptokinase instillation.Methods: Clinical profile, hospital course and outcome of tuberculous pleural effusion patients at the end of six months of anti-tubercular treatment of 50 patients from January 2009 to June 2010 were analyzed. These patients were randomly divided into two groups. One group (n=25) received intrapleural streptokinase via pigtail catheter and the other group (n=25) received intercostal drainage without intrapleural streptokinase instillation. All the patients received standard daily anti TB regimen of 2HERZ/4HR for a total duration of six months. All the patients were followed up for a total duration of 1 year for evidence of any residual pleural thickening.Results: Majority of the patients were above 40 years of age (60%). The male to female ratio was 2.3:1. The major symptoms of the patients were, fever in 44 patients (88%), cough in 42 patients (84%), breathlessness in 33 patients (66%), loss of appetite in 25 patients (50%) and chest pain in 25 patients (50%). Most of the patients had ADA levels between 40-70IU/L (48%) and only 6% had ADA levels below 40IU/L. The incidence of residual pleural thickening in the study group was less as compared to the control group (2.36±0.49mm vs 9.28±1.50mm) (p <0.0001).Conclusion: Intrapleural streptokinase instillation with pigtail catheter drainage less number of complications associated with study group and is successful with the decreased incidence of residual pleural thickening during the follow up period.

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 Evaluation of Malignant Mesothelioma in Central Anatolia: A Study of 67 Cases

2004 ◽  
Vol 11 (4) ◽  
pp. 287-290 ◽  
Author(s):  
Inci Gulmez ◽  
Levent Kart ◽  
Hakan Buyukoglan ◽  
Ozlem Er ◽  
Suleyman Balkanli ◽  
...  
Keyword(s):  
Pleural Effusion ◽  
Malignant Mesothelioma ◽  
Environmental Control ◽  
Public Health Problem ◽  
Central Anatolia ◽  
Major Public Health Problem ◽  
Pleural Thickening ◽  
Chest X Ray ◽  
Fibrous Mineral

BACKROUND:Malignant mesothelioma (MM) is a fatal neoplasm which frequently results from exposure to asbestos or erionite.METHOD:Sixty-seven patients with MM were seen between 1990 and 2001. Their clinical and radiological features, as well as the therapy, were retrospectively evaluated.RESULTS:In 51 patients (76.1%), the MM was confined to the pleura, in 14 patients it was exclusively peritoneal and in two patients, it involved both areas. Of the 67 cases, 35 (52.2%) were women. The mean (± SD) age for all cases was 57.6±11.5 years. Dyspnea (67.2%), cough (55.2%) and chest pain (50.7%) were the most frequent symptoms of onset. Pleural effusion (92.4%) was the most common chest x-ray finding, whereas pleural effusion (60.8%), pleural nodules (34.7%) and pleural thickening (34.7%) were the most common computed tomography findings in pleural MM patients. The histological subtypes of MM were determined as epithelial in 60 patients (89.5%), sarcomatous in four patients (5.9%) and mixed in three patients (4.4%). Although 50.7% and 25.4% of the cases were exposed to erionite and asbestos, respectively, 23.9% of the cases recalled no exposure to asbestos or erionite. Exposures were environmental as opposed to occupational. Thirty-five patients (52.2%) were administered chemotherapy, and follow-up data were available for 22 patients. For these patients, the two-year survival rate was 22% and the two-year progression-free interval was 15.7%. There were no differences between patients with asbestos and erionite exposure.CONCLUSION:MM should be considered when exudative pleural effusion is detected in a patient who has been exposed to asbestos or erionite. MM is a major public health problem in parts of Turkey and compulsory environmental control of fibrous mineral should be considered.

scholarly journals Case Report: Recurrence of Positive SARS-CoV-2 Results in Patients Recovered From COVID-19

2020 ◽  
Vol 7 ◽  
Author(s):  
Ren-zi Zhang ◽  
Wang Deng ◽  
Jing He ◽  
Yu-yan Song ◽  
Chun-fang Qian ◽  
...  
Keyword(s):  
Chest Ct ◽  
Nucleic Acid Detection ◽  
Limited Data ◽  
Asymptomatic Patients ◽  
Long Duration ◽  
Long Term Follow Up ◽  
Normal Chest ◽  
Chest Ct Scan

Background: Coronavirus disease 2019 (COVID-19) is spreading throughout the world. Limited data are available for recurrence of positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) results in patients with long duration of COVID-19.Methods: We reported four cases recovered from COVID-19 with recurrence of positive SARS-CoV-2 results during the long-term follow-up.Results: The four patients recovered from COVID-19 showed recurrence of positive SARS-CoV-2 results for more than 120 days with no symptoms and normal chest CT scan.Conclusions: The dynamic surveillance of SARS-CoV-2 by nucleic acid detection and serological assays is important for asymptomatic patients who might be potentially infectious.

scholarly journals Prevalence and risk factors for lung involvement on low-dose chest CT (LDCT) in a paucisymptomatic population of 247 patients affected by COVID-19

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Maxime Castelli ◽  
Arnaud Maurin ◽  
Axel Bartoli ◽  
Michael Dassa ◽  
Baptiste Marchi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Low Dose ◽  
High Sensitivity ◽  
Chest Ct ◽  
Lung Involvement ◽  
Imaging Findings ◽  
Asymptomatic Patients ◽  
The Mean

Abstract Background Low-dose chest CT (LDCT) showed high sensitivity and ability to quantify lung involvement of COVID-19 pneumopathy. The aim of this study was to describe the prevalence and risk factors for lung involvement in 247 patients with a visual score and assess the prevalence of incidental findings. Methods For 12 days in March 2020, 250 patients with RT-PCR positive tests and who underwent LDCT were prospectively included. Clinical and imaging findings were recorded. The extent of lung involvement was quantified using a score ranging from 0 to 40. A logistic regression model was used to explore factors associated with a score ≥ 10. Results A total of 247 patients were analyzed; 138 (54%) showed lung involvement. The mean score was 4.5 ± 6.5, and the mean score for patients with lung involvement was 8.1 ± 6.8 [1–31]. The mean age was 43 ± 15 years, with 121 males (48%) and 17 asymptomatic patients (7%). Multivariate analysis showed that age > 54 years (odds ratio 4.4[2.0–9.6] p < 0.001) and diabetes (4.7[1.0–22.1] p = 0.049) were risk factors for a score ≥ 10. Multivariate analysis including symptoms showed that only age > 54 years (4.1[1.7–10.0] p = 0.002) was a risk factor for a score ≥ 10. Rhinitis (0.3[0.1–0.7] p = 0.005) and anosmia (0.3[0.1–0.9] p = 0.043) were protective against lung involvement. Incidental imaging findings were found in 19% of patients, with a need for follow-up in 0.6%. Conclusion The prevalence of lung involvement was 54% in a predominantly paucisymptomatic population. Age ≥ 55 years and diabetes were risk factors for significant parenchymal lung involvement. Rhinitis and anosmia were protective against LDCT abnormalities.

scholarly journals Pulmonary Nodular Lymphoid Hyperplasia in a 53-year-old Man With Malignant Sign: a Case Report and Literature Review

2021 ◽  
Author(s):  
Zhen Yang ◽  
Lianshuang Wei ◽  
Xu Li ◽  
Xin Liu
Keyword(s):  
Ground Glass Opacity ◽  
Lymphoid Hyperplasia ◽  
Chest Ct ◽  
Benign Disease ◽  
Pathological Examination ◽  
Histopathologic Examination ◽  
Imaging Findings ◽  
Case Presentation ◽  
Nodular Lymphoid Hyperplasia

Abstract Background: Pulmonary nodular lymphoid hyperplasia (PNLH) is a rare benign illness. Due to atypical clinical and radiographic presentations, diagnosis largely depends on postoperative pathological examination. Thus, preoperative misdiagnosis is often occurred. Case presentation: We present a case of asymptomatic PNLH that was seen as ground-glass opacity (GGO) on computed tomography (CT). After 3-year observation, the diagnosis tends to adenocarcinoma owing to increasing density of the node and vessel convergence sign, which were signs of malignancy. Video-assisted segmentectomy (S10) was carried out. Histopathologic examination of postoperative specimen showed follicular lymphoid hyperplasia with interfollicular lymphoplasmacytosis, consistent with PNLH. The follow-up chest CT images showed no recurrence or metastasis.Conclusion: Although it is a benign disease, PNLH can exhibit malignant signs in the imaging examinations, which could lead to misdiagnosis. This reminds us of the uncertainty between imaging findings and diagnosis. The diagnosis depends on postoperative pathological examination. Surgical resection is not only diagnostic but also curative.

scholarly journals Temporal lung changes on thin-section CT in patients with COVID-19 pneumonia

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhiyan Zhang ◽  
Runhui Tang ◽  
Heyang Sun ◽  
Haiyang Dai ◽  
Kangyin Chen ◽  
...  
Keyword(s):  
Thin Section ◽  
Chest Ct ◽  
Illness Onset ◽  
Group 4 ◽  
Lung Abnormalities ◽  
Group 3 ◽  
Time Periods ◽  
Group 2 ◽  
Discharge From Hospital

AbstractWe examined characteristics of chest CT across different time periods for patients with COVID-19 pneumonia in Huizhou, China. This study included 56 COVID-19 patients with abnormal CT acquired between January 22 and March 3, 2020. The 141 scans of 56 patients were classified into four groups (Groups 1–4) based on dates on which scans were obtained at the 1st, 2nd, 3rd week or longer than three weeks after illness onset. Forty-five patients with follow-up scans were categorized into four groups (Groups A–D) according to extent that lesions reduced (≥ 75%, 50–75%, 25–50% and < 25%). Ground-glass opacities (GGO) was prevalent in Groups 1–4 (58.1–82.6%), while percentages of consolidation ranged between 9.7% in Group 4 and 26.2% in Group 2. The highest frequency of fibrous stripes occurred in Group 3 (46.7%). Total CT scores were on average higher in Groups 2–3. Among 45 follow-up patients, 11 (24.4%) of them recovered with lesions reducing ≥ 75%, with the lowest median age and total CT scores on admission. There are temporal patterns of lung abnormalities in COVID-19 patients, with higher extent of lesion involvement occurring in the 2nd and 3rd week. Persisting lung changes indicate some patients may need isolation after discharge from hospital.

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