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Low dose CT scan is the latest method of modern spiral CT scan which is very safe as it dramatically minimize the effects of radiation exposure to patients (It involves a radiation exposure dose approximate 1mSv/exam, equivalent to a classic radiology exam, whereas the normal routine chest CT scan involves about 7mSv). This radiation exposure dose is very low even compared to natural background radiation which is about 3.1 mSv /person/year).

Still low dose CT scan provides excellent diagnostic results. This latest method of CT scan helps to detect pulmo -pleural lesions and other thorax diseases that are not detected by standard chest X-ray, such as early-stage cancer, pneumonia (including viral pneumonia, even caused by Covid 19 (CT scan is used to diagnose Covid 19 pneumonia when RT-PCR testing for SARS-CoV-2 has not been done), bronchiectasis, emphysema, mediastinal tumors, chest wall tumors, etc.

It can also be used to follow up known lesions, not only help your doctor compare and evaluate treatment results while minimizing radiation exposure to patients that require multiple control exams.

Thorax low-dose CT scan is safer than normal routine CT scan and gives higher value in diagnosis than standard X-rays. It plays significant role in screening, detection and follow up treatment outcome, especially in the context of coronavirus pneumonia spreading all over the world now.

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