Computed tomography (CT) in severe asthma

This is an automatically translated article.

The article was professionally consulted by Specialist Doctor I Nguyen Truong Duc - Radiographer - Department of Diagnostic Imaging and Nuclear Medicine - Vinmec Times City International General Hospital. Dr. Duc has more than 17 years of experience in diagnostic imaging.
Asthma is a chronic respiratory disease that can affect both children and adults. The disease occurs due to the body's response to allergens, related to genetic factors and external environmental factors. Diagnosis of asthma based on computerized tomography brings high accuracy to patients.

1. Asthma Overview

Asthma is also known as bronchial asthma. Symptoms of asthma vary widely. However, the following symptoms occur most commonly:
Cough, especially at night Wheezing Feeling of choking or chest pain Very rapid and rapid breathing As the disease progresses, the frequency of As the symptoms of asthma attacks become more dense, the symptoms of shortness of breath become more severe.
Asthma is a global burden, affecting 5% of the general adult population, of which about 5-10% have severe asthma.
Severe asthma is a heterogeneous complex disease entity with high morbidity and mortality. Increasingly new techniques in computed tomography are being used to understand the pathophysiology of severe asthma.

2. The role of computed tomography (CT)

Clinically, the role of computed tomography (CT) in asthma is primarily concerned with the diagnosis of complications and comorbidities, such as: Pneumothorax is a rare complication. and severity of severe asthma, occurring mainly in the presence of acute, decompensated asthma, or whenever clinical conditions suggest the possibility of pneumothorax, such as when airway pressure High breathing on ventilator.
Lung CT may also be useful to diagnose asthma-related conditions, such as allergic bronchopulmonary aspergillosis, eosinophilic pneumonia, and eosinophilic granulomatosis with polyangiitis.
Recently, with high resolution computed tomography (HRCT), more and more quantitative studies through CT measures of disease severity, including: including severe asthma. The main findings of interest on CT scans of patients with asthma, especially with severe asthma, can be divided into those related to morphological changes in the large airways, findings suggestive of dysfunction. small airways, airway wall thickness, wall area, and lumen area.

3. Use of Synchrotron radiation and dual-energy CT to assess asthma

To evaluate asthma, both a morphological assessment of the airways and a functional analysis of regional ventilation should be performed. This can be achieved using synchronous radiation CT/dual-energy CT. Ventilation imaging can be done via non-radioactive Xenon (Xe) enhanced CT.

Dual-energy CT may be useful in understanding the pathogenesis of the disease, particularly in phenotyping patients with severe asthma and assessing response to treatment.
Currently, Vinmec International General Hospital has an asthma screening package for patients with bronchial asthma. Vinmec's asthma screening package helps:
Screening for early detection to promptly control and treat the disease Perform clinical examination, take medical history, measure respiratory function, otolaryngology and clinical examination bronchial filter. When registering for the Asthma Screening Package, customers will receive:
01 appointment with an Allergist - Clinical Immunology 01 time for screening tests Measure respiratory function Measure FeNo Ear, nose and throat endoscopy Allergen testing Vinmec International General Hospital has a team of highly qualified and experienced doctors, fully equipped with modern facilities and equipment for definitive diagnosis disease and most effective pre-treatment staging. Especially when coming to Vinmec, patients do not have to wait long, have a quick examination time and are carefully guided by a team of experienced medical staff on the use of medicines, aerosols and sprays that can be used. Specially designed, positive lifestyle change guide helps patients easily adhere to their asthma management.
For detailed information, please contact the hospitals and clinics of Vinmec health system nationwide.

Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.

References: ncbi.nlm.nih.gov
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