The depiction of the lungs with the & fusion scan under the protection of the function of the lungs in the body is the transmission of oxygen from the air to the blood, in the process of transporting the oxygen, mention the amount of air flowing into the lungs (ventallation), while the pulmonary blood flow is called perfusion. An imbalance in the ventilation process may occur as a result of blockage in a portion of the airways as a result of secretions, for example, while the imbalance in irrigation stems from a problem in the work of the heart, due to the embargo or a blood clot that can block a number of arteries of the lung. Lung scan is an investigation into their performance, the function of which is to determine places suffering from a lack of ventilation or irrigation. The ventilation examination is performed by a gas inhalation mixed with radioactive material, so it releases a small amount of rays that in turn collects in the lungs and concentrates through blood circulation. In these two investigations, a special radiological camera photographed the lungs and identified places with a decrease in ventilation or irrigation levels. When is the examination performed? The main reasons for this investigation are the following: suspected pulmonary embolus. Before removing a part of the lung. The risk category is very little, and the most prominent of these risks includes the following: 1. Radio material used in this investigation gives a very small amount of rays, and there is no risk to people around you, and these materials are discharged from the body by lifting to the toilet and washing hands with soap. There is a little possibility of damage to the cells of the body due to the rays, but the amount of rays to which the body is exposed due to X -Ray photography or a tomography examination may be similar to the amount of rays in this investigation and perhaps more. 2. Allergy is possible and sometimes the patient has sensitivity reactions to one of the radioactive materials used in the investigation. Diseases related to the portrayal of lungs with radioisotopes include the most important diseases of this following investigation: pulmonary embolus. Bullous emphysema. COPD. And other lung diseases. How to perform the exam will ask you for the specialist to remove jewelry and take out the clothing that can confuse the lung imaging examination. The course of ventilation and perfusion examination is done as follows: 1. The ventilation examination during the conduct of the ventilation investigation is given a mask. This process is performed several times until the camera has finished filming the lungs of all the required sides, and this process usually lasts between 15 and 30 minutes. 2. Wrecking examination When an irritation examination is conducted, an intravenous injection is placed in one of the hands, and then the injection of a radioactive substance must be through it, then the patient must lie down without mobility until the camera is finished with filming the lungs, it takes 15 to 30 minutes. The camera does not release the rays, but only captures the rays issued by the material introduced to the lungs, and therefore the patient is not subject to additional rays during the camera rotation, as well as a photography process of the X -Ray breast box before or after the examination. Warnings during pregnancy: Before conducting a lung photography examination with radioisotopes, the doctor should be informed in the event of a pregnancy. Breastfeeding: In the case of a woman breastfeeding, it is forbidden to breastfeed during the two days of the investigation, for fear that radioactive materials will be transferred to milk. Medicine that affects the result of the investigation, you should inform the specialist doctor in the case of submission or take the following medication: Barium: In the case of a medical examination, the use of barium is needed by oral swallowing or anal injection, which can negatively affect the results of the investigation. Becha, which takes pain relief in the four days preceding the examination containing the bomb, can negatively affect the results. The analysis of the results is analyzing the results of the Longs investigation with radioactive isotopes if there is a homogeneity in ventilation and irrigation, so that a lip -like area with little uptake of the radioactive substance does not occur in the investigations. The potential improper results of this investigation and its interpretations include the following: sound irrigation of an improper ventilation, which can occur in cases of obstructive pulmonary diseases, such as: asthma and chronic lunglong diseases. Incorrect irritation of proper ventilation, it can be a sign of the pulmonary embaly. Including irrational extensive and ventilation, these two things can happen together in many cases of lung diseases, such as: pneumonia, pulmonary embrace, chronic lung pulmonary diseases, and others. Usually, the lung photography examination is conducted in Radiois desk to evaluate and estimate the risk of pulmonary valve, but due to the lack of accuracy of this investigation, it is not always possible to rely on proving or excluding the possibility of pulmonary valve, especially if there are other pulmonary diseases, as it happens in most cases. In the following cases, the possibility of lung valve is talked about: The presence of a pulmonary embargo is excluded as the result of the lung photography investigation with radioactive isotope is intact. If the results indicate that there is little probability of the embargo, the doctor will perform additional tests according to the case. The doctor in cases where the possibility of the infection is average in which the diagnosis is followed by a computerized CT (CT) examination according to a special protocol to detect the presence of the lungembargo. In such cases, it is likely that there is a pneumonia, and treatment in this case is often started by medication or injected blood -blooded substances. In recent years, due to the width of the distribution of computerized Tomography devices (CT), and the use of lung photography investigation with radioisotopes is increasingly provided, and replaced with a computerized tomography examination if it is suspected of being lung valve.
Photography of the lungs with radioactive isotopes: the investigation and analysis of the results
