Detection method of viral pneumonia imaging features based on CT scan images in COVID-19 case study.

This study aims to automatically analyze and extract abnormalities in the lung field due to Coronavirus Disease 2019 (COVID-19). Types of abnormalities that can be detected are Ground Glass Opacity (GGO) and consolidation. The proposed method can also identify the location of the abnormality in the lung field, that is, the central and peripheral lung area. The location and type of these abnormalities affect the severity and confidence level of a patient suffering from COVID-19. The detection results using the proposed method are compared with the results of manual detection by radiologists. From the experimental results, the proposed system can provide an average error of 0.059 for the severity score and 0.069 for the confidence level. This method has been implemented in a web-based application for general users.•A method to detect the appearance of viral pneumonia imaging features, namely Ground Glass Opacity (GGO) and consolidation on the chest Computed Tomography (CT) scan images.•This method can separate the lung field to the right lung and the left lung, and it also can identify the detected imaging feature's location in the central or peripheral of the lung field.•Severity level and confidence level of the patient's suffering are measured.

Degree of agreement between dacryoscintigraphy and dacryocystography examinations results in primary acquired nasolacrimal duct obstruction.

BACKGROUND: This diagnostic study aimed to assess degree of agreement between dacryoscintigraphy and dacryocystography as supporting examinations in patients with primary acquired nasolacrimal duct obstruction (PANDO). Patients with PANDO who complained of epiphora and visited our outpatient clinic were subsequently sent for dacryoscintigraphy and dacryocystography examinations. Side effects and convenience of both examinations were assessed by observation and questionnaire. MATERIAL AND METHODS: Through irrigation and probing, there were 47 out of 62 eyes were found with PANDO. As much as 87.1% subjects were female, with mostly (74.2%) aged > 40 years old. With dacryoscintigraphy, time needed to reach sac was 0 minutes, 5 minutes (duct), and 12.5 minutes (nasal cavity). RESULTS: Degree of agreement between both examinations was 83.8% to determine obstruction and 70.9% to locate obstruction. There were 22 subjects complained about pain in dacryocystography examination while none with dacryoscintigraphy (p < 0.005). Sixteen subjects feel dacryoscintigraphy examination was more convenient, eleven subjects feel dacryocystohraphy was more convenient, while 4 subjects feel the two examinations were similar. CONCLUSIONS: Even though dacryocystography examination was considered more painful than dacryoscintigraphy, both examinations had high convenience level for patients. Dacryoscintigraphy and dacryocystography also had a good agreement in detecting and locating obstruction in PANDO.

Diagnostic Approach for Thyroid Nodules.

Thyroid nodule is a health problem which commonly found in daily practice, therefore clinical guidance is needed. This guideline was compiled by a multidisciplinary team and expected to be a guideline in diagnosing thyroid nodules on daily clinical practice.