Neglected Foreign Body Aspiration Mimicking Lung Cancer Recurrence.

Foreign body aspiration (FBA) occurs less frequently in adults than in children. Case reports of FBAs occurring in adults after lung surgery are not found in the literature, and this particular condition is often misdiagnosed. We report a case in which the patient was diagnosed after various events.

The diagnostic value of dynamic volume computed tomography angiography in children with anomalous origin of the left coronary artery from the pulmonary artery.

There have been almost no reports on the technique of dynamic volume computed tomography angiography (DVCTA) in children with anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA). Twelve children with ALCAPA, aged 5 months to 15 years, were enrolled in this retrospective study to explore the clinical value of DVCTA in the diagnosis of ALCAPA in children. All patients underwent low-dose prospective ECG-gated 320-slice DVCTA and transthoracic echocardiography.

The study of automatic machine learning base on radiomics of non-focus area in the first chest CT of different clinical types of COVID-19 pneumonia.

To explore the possibility of predicting the clinical types of Corona-Virus-Disease-2019 (COVID-19) pneumonia by analyzing the non-focus area of the lung in the first chest CT image of patients with COVID-19 by using automatic machine learning (Auto-ML). 136 moderate and 83 severe patients were selected from the patients with COVID-19 pneumonia. The clinical and laboratory data were collected for statistical analysis.

[The study on reaction kinetics based on a new system of the horseradish peroxidase catalyting the oxidation of o-phenylenediamine by H2O2].

In this paper, we study the enzyme catalysis reaction kinetics that 2,3-diaminophenazine compound was synthesized with the horseradish peroxidase catalyzing reaction of H2O2 oxidizing o-phenylemediamine. First, the product of oxidation of o-phenylenediamine (OPD) by H2O2 catalyzed and by horseradish peroxidase (HRP) was synthesized. The finest reaction conditions (acid degree, temperature, OPD, H2O2, HRP various molar ratio) were selected.