scholarly journals The Role of Chest High Resolution CT and Rt-Pcr in Diagnosis of Different Stages of Coronavirus (Covid-19) Pneumonia

2021 ◽  
Vol 02 ◽  
Author(s):  
Mohamed N.E. Kassem ◽  
Doaa T. Masallat
Keyword(s):  
High Resolution ◽  
Early Stage ◽  
Rt Pcr ◽  
High Resolution Computed Tomography ◽  
Severe Stage ◽  
Normal Chest ◽  
Patient’S Outcome ◽  
A Prospective Study ◽  
Progressive Stage

Purpose: To investigate how RT-PCR (real time–polymerase-chain-reaction) and chest High Resolution Computed Tomography (HRCT) can detect COVID-19 (Coronavirus Disease 19) disease in the early, progressive and severe stages, as well as patient’s outcome. Method: We perform a prospective study with chest HRCT on 206 patients with positive RT-PCR test. The patients were divided into three groups; early stage (100 patients), progressive stage (70 patients) and severe stage (36 patients). Results: The early stage involved typical category (COVID-19 Reporting and Data System, CO-RADS 5, 34 cases - 34%), indeterminate category (CO-RADS 3, six cases - 6%), atypical category (CO-RADS 4, ten cases - 10%) and normal chest HRCT imaging (CO-RADS 1, 50 cases - 50%). The progressive stage involved typical category (CO-RADS 5, 70 cases, 100%), The severe stage involved typical category (CO-RADS 5, 36 cases, 100 %). Conclusion: RT-PCR is the gold standard and specific tool for confirming COVID-19 infection. Combination of RT-PCR and chest HRCT is used for early diagnosis of COVID-19 pneumonia. Chest HRCT is positive in 50% of patients in the early stage of COVID-19. Chest HRCT is not only detecting pulmonary parenchymal changes but also determining patient’s outcome in the progressive and severe stages of COVID-19 (CO-RADS 5). Patients with progressive stage will not need ventilator and patients with severe stage should receive ventilator.

scholarly journals Chest CT as a Complement to RT-PCR to Confirm and Follow-up COVID-19 Patients

Medicinus ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 31
Author(s):  
Aziza Ghanie Icksan ◽  
Muhammad Hafiz ◽  
Annisa Dian Harlivasari
Keyword(s):  
Chest Ct ◽  
Rt Pcr ◽  
High Resolution Computed Tomography ◽  
X Ray ◽  
First Case ◽  
Chest X Ray ◽  
Polymerase Chain

<p><strong>Background : </strong>The first case of COVID-19 in Indonesia was recorded in March 2020. Limitation of reverse-transcription polymerase chain reaction (RT-PCR) has put chest CT as an essential complementary tool in the diagnosis and follow up treatment for COVID-19. Literatures strongly suggested that High-Resolution Computed Tomography (HRCT) is essential in diagnosing typical symptoms of COVID-19 at the early phase of disease due to its superior sensitivity  (97%) compared to chest x-ray (CXR).</p><p>The two cases presented in this case study showed the crucial role of chest CT with HRCT to establish the working diagnosis and follow up COVID-19 patients as a complement to RT-PCR, currently deemed a gold standard.<strong></strong></p>

scholarly journals Role of high-resolution ultrasound in the assessment of abdominal wall masses and mass-like lesions

2019 ◽  
Vol 50 (1) ◽  
Author(s):  
Ahmed Abdelrahman Mohamed Baz ◽  
Hatem Mohamed Said El-Azizi ◽  
Mohamed Sayed Qayati Mohamed ◽  
Ahmed Yehia Ibrahim Abdeldayem
Keyword(s):  
High Resolution ◽  
Abdominal Wall ◽  
Predictive Value ◽  
Ultrasound Examination ◽  
Ct Findings ◽  
Operative Findings ◽  
A Prospective Study ◽  
Histopathological Results ◽  
Contrast Media Administration

Abstract Background To evaluate the diagnostic accuracy of high-resolution ultrasound in the assessment of abdominal wall masses and mass-like lesions and to provide an overview of the sonographic appearances of different abdominal wall pathologies, 54 patients were included in a prospective study. The patients’ age was ranging from 1 to 75 years. Twenty-eight were females (51.9%) and 26 were males (48.1%); all were evaluated by a high-resolution ultrasound examination, and the results were correlated to the patients’ operative findings and histopathological results as well as the pelviabdominal CT findings. Results In comparison to the operative, histopathological, and CT findings, the high-resolution ultrasound had an overall 100% accuracy for abdominal wall lesions, and for hernia cases, it had 100% sensitivity, 100% specificity, 100% accuracy, 100% positive predictive value, and 100% negative predictive value. Conclusion The current study had encouraging results regarding the role of high-resolution ultrasound in the assessment of abdominal wall masses and mass-like lesions; nevertheless, it is considered as an effective and simple diagnostic tool that may limit the patients’ exposure to invasive biopsies and to the hazardous exposure to ionizing radiation and contrast media administration like that in CT examination.

scholarly journals Complete Disappearance of Lung Abnormalities on High-Resolution Computed Tomography: A Case of Histiocytosis X

2007 ◽  
Vol 14 (4) ◽  
pp. 235-237 ◽  
Author(s):  
Sergio Negrin-Dastis ◽  
Dominique Butenda ◽  
Jacques Dorzee ◽  
Jacques Fastrez ◽  
Jean-Paul d’Odémont
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Lung Biopsy ◽  
Langerhans Cell Histiocytosis ◽  
Complete Disappearance ◽  
High Resolution Computed Tomography ◽  
Pulmonary Langerhans Cell Histiocytosis ◽  
Lung Abnormalities ◽  
Computed Tomography Scans

A case of pulmonary Langerhans cell histiocytosis, proved by both lung high-resolution computed tomography and lung biopsy, is described. Following smoking cessation, lung nodules and cysts gradually disappeared on serial computed tomography scans, with complete clearance of the lesions after 12 months. The role of tobacco smoking is discussed, in detail, against the background of the literature.

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