What is a HRCT Chest Scan?A High Resolution Computed Tomography scan of the chest is more popularly known as a HRCT chest scan. It is a highly advanced CT technique that is used to take thin views or slice images of the lung tissue. A HRCT chest scan is a crucial procedure in diagnosing lung complications such as idiopathic pulmonary fibrosis, emphysema and bronchiectasis. The images or slices of HRCT scan are more detailed and precise than that of an ordinary CT scan. The images of a CT scan measure 3 to 5 millimeters, as opposed to HRCT scan slices that measure within 1-2 millimetres. Procedure for a HRCT chest scan: Preliminary preparationHRCT scans are available on appointment in every major CT scan centre in Chennai, as well as numerous healthcare centres in the city. It is advisable to carry all your health records and your doctor’s prescription sheets when you go for your scan. The radiologist may require your records to corroborate his findings and make an accurate diagnosis. It is a good idea to avoid wearing jewellery, although you will be asked to remove them just before the procedure commences. Wear loose, comfortable clothing and take a companion along with you just in case you are nervous. What happens during the HRCT scanThe individual is asked to lie on a flat table that is connected to a big machine that resembles a donut. A lab assistant is present to ensure that the individual’s chest portion is correctly positioned in the scanner. Most often, the person is asked to lie with his hands above his head to get a comprehensive view of the chest. The assistant leaves the room, but keeps an eye on the person until the procedure is over. HRCT chest scans are taken in the prone and supine positions, meaning the person will be asked to lie on his back and on his stomach. Possible diagnostic results of a HRCT chest scanIf the person is being evaluated for pulmonary fibrosis and other major lung complications, the radiologist will look for signs of honeycombing, reticulation, scarring, pleural effusion and changes along the periphery of the lung. The radiologist will give his diagnosis but it is the physician who will convey the nature of the disease, and the treatment procedure to the person. Important points to remember with HRCT chest scan. The scan procedure will last for approximately half an hour. . There are no food restrictions for the test. . A HRCT scan does not require the use of a contrast agent as the lung itself has very high contrast and the use of an agent will only mar the results. . HRCT chest scan is a non-invasive and painless procedure. . Always get your HRCT chest scan done at a reputed and reliable diagnostic centre. A HRCT chest scan is done only when the physician recommends it. This type of scan exposes the patient to a larger dose of radiation than a chest x-ray. Doctor’s will often resort to other pulmonary tests to make a well-informed diagnosis. The HRCT scan is recommended only when it is absolutely necessary. Read More : MRI Brain Scan To Diagnose Stroke Effectively
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