LitCovid-sentences  

PMC:7095437 / 1955-4992 JSONTXT 15 Projects

Annnotations TAB TSV DIC JSON TextAE

Id Subject Object Predicate Lexical cue
T21 0-12 Sentence denotes Introduction
T22 13-272 Sentence denotes Since December 2019, an increasing number of pneumonia cases caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan, Hubei, China, and subsequently, an outbreak of coronavirus disease 2019 (COVID-19) swept the globe [1–4].
T23 273-437 Sentence denotes As of February 3, 2020, more than 23,214 suspected cases and 20,438 confirmed cases have been identified, and there has been over 425 deaths related to the illness.
T24 438-497 Sentence denotes Moreover, the virus is still spreading at an alarming rate.
T25 498-615 Sentence denotes In this sudden epidemic, reverse transcription polymerase chain reaction (RT-PCR) revealed the cause of the outbreak.
T26 616-711 Sentence denotes The SARS-CoV-2 can be specifically detected in respiratory secretions or plasma samples RT-PCR.
T27 712-940 Sentence denotes However, some patients with likely COVID-19 may have negative initial RT-PCR results for COVID-19, which may be due to insufficient cellular material for detection or improper extraction of nucleic acids from clinical materials.
T28 941-1239 Sentence denotes Thus, imaging examination, which can effectively and conveniently observe the pulmonary parenchymal abnormalities, can solve some challenges associated with clinical diagnosis in suspected patients with a false-negative result, especially symptomatic patients with dyspnea and respiratory distress.
T29 1240-1363 Sentence denotes Because this infection is caused by the unprecedented SARS-CoV-2, few related imaging studies have been currently reported.
T30 1364-1510 Sentence denotes Among the studies that have been conducted, multifocal consolidation or ground-glass opacity (GGO) was observed on chest radiographs and CT [5–7].
T31 1511-1890 Sentence denotes However, the sensitivity of chest radiographs for pneumonia are relatively low, and it is difficult to use chest radiographs to distinguish COVID-19 from common pneumonia during the cold season and pneumonia caused by other coronaviruses, such as severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV) infections [8].
T32 1891-1976 Sentence denotes In addition, the disease is developing rapidly and the symptoms of this disease vary.
T33 1977-2244 Sentence denotes Hence, it is very necessary to systematically analyze the chest CT findings associated with this disease systematically, for the timely isolation, COVID-19 RT-PCR and respiratory care of patients, and early implementation of infection prevention and control measures.
T34 2245-2518 Sentence denotes To fully understand and early discriminate the CT features of this disease in its early stages, we collected initial chest CT data from confirmed COVID-19 patients who did not receive any antiviral treatment mainly from Chongqing Three Gorges Central Hospital for analysis.
T35 2519-2802 Sentence denotes The Chongqing Three Gorges Central Hospital, located in the northeast of Chongqing and connected to Hubei Province, is one of the designated hospitals for the centralized treatment of pneumonia patients infected by the SARS-CoV-2 and has received a large number of COVID-19 patients.
T36 2803-3037 Sentence denotes Therefore, our aim was to systematically analyze the CT features of the early and progressive stages of the natural course of COVID-19 and explore the possible pathological changes in the lung during different periods of this disease.