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Lung-Scan (Low-Dose)

What is a Lung-Scan?

Dual-Source CT scanning is used to detect abnormalities in the lung. Lung cancer is the number 1 cancer killer killing more people than colon, prostrate and breast cancer combined. Lung cancer is usually detected late in the course of the disease where treatment is less effective. Using the revolutionary new CT Lung-Scan we can detect lung cancer at its earliest stages thereby increasing the treatment success rates. The special CT scanner images the lung in very thin sections in just one breath hold. Using this revolutionary technology, it is possible to detect growths and lung nodules as small as two to five millimetres, much smaller than can be seen with conventional chest X-ray and too small for symptoms to develop.

By finding lung cancer at a smaller size, when it is more likely to beconfined to the chest, Lung-Scan increases your odds of survival and provides and extremely sensitive method for the early detection of lung cancer.

How do I know if I need the test?

The most common symptoms of lung cancer are cough (75%) and hemoptysis (coughing up blood) (50%). These symptoms are already present in 90% patients at the time at diagnosis. In the remainder of patients, lung cancer is discovered only incidentally on an X-ray done for an unrelated condition. Most patients have metastatic cancer, cancer which has spread outside of the lung, at the time of diagnosis. If you have any persistent chest problems, are between 50-80 years old, smoke, or have a family history of lung cancer then you may benefit from a Lung-Scan.


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Topic	Description
More about Lung Scans	Lung Scans detect clots that may have been in your bloodstream and lodged themselves in your lungs. There are usually two parts to a Lung Scan; Ventilation Scan and Perfusion Scan. The Ventilation Scan assesses the air supply reaching your lungs. You will breathe in (through a mouth piece) for a few minutes - an aerosol labelled with a radiopharmaceutical. No side effects can be felt from this material. After the breathing portion, pictures of your lungs will be taken using a machine called a Gamma camera. This will take about 15-20 minutes. When your Ventilation Scan is completed, you will next have a Perfusion Lung Scan. The Perfusion Scan assesses the blood flow going to your lungs. A radiopharmaceutical will be injected through a vein (usually in your arm) a that will follow the blood supply to your lungs. The Technologist will then take identical pictures as the ventilation portion of the study. This will require another 15-20 minutes. Any diagnostic procedure involves risks. There can be minimal side effects, and allergic reactions are rare. The test and material are used routinely throughout the world under physician supervision.
Lung Scan	Lung cancer is the leading cause of death of more Americans than any other type of cancer. Most individuals with lung cancer do not survive even 5 years. However, if the lung cancer is detected early and treated, at least 70-80% survive the first 2 years. Hence, detection of lung cancer at the initial stages is very important to improve survival rates. CT scans play a major role in the screening/detection of lung cancers. Lung cancer tumors are as big as an orange by the time they are discovered through a conventional x-ray – and at this stage the cancer has usually spread and caused enough damage. CT scan is the most useful test to identify and screen for lung cancers at early stages. The CT scan is able to detect very small masses in the lung by detecting which, an individual's survival rate may be hugely improved. CT scan of the chest is beneficial also for individuals at risk for lung cancers. Individuals with the following factors should get a CT chest Individuals who smoke cigarettes Individuals who are frequently exposed to second hand smoke Individuals who have been exposed to asbestosis or to radon Individuals who have a history of tuberculosis Individuals who cough blood and have lost a lot of weight Individuals with a genetic history of lung cancer Individuals who have a stubborn cough for a long time and suffer from shortness of breath If an abnormality is detected, it will be discussed with you and your physician and you may require more tests, biopsy or observation. Further testing is generally done at a later time.
Lung Scans	A lung scan is a nuclear scanning test usually carried out to detect a blood clot that is preventing normal blood flow to part of a lung. Two types of lung scans are done together: Ventilation scan. In a ventilation scan, a radioactive tracer gas or mist is inhaled by the patient so it reaches the lungs. Pictures from this scan can show areas of the lungs that are receiving poor supply of air or also that retain too much air. Perfusion scan. In a perfusion scan, a radioactive tracer substance is administered into a vein. It travels through the bloodstream and reaches the lungs. Pictures from this scan can detect areas of the lungs that are not receiving good blood supply. In areas of the lung where the blood flow is normal, the tracer is absorbed evenly. Regions not receiving enough blood show up. When the lungs are working normally, blood flow on a perfusion scan matches air flow on a ventilation scan. So, a discrepancy between the ventilation and perfusion scans may indicate a pulmonary embolism. Ventilation and perfusion scans can be done to diagnose certain lung diseases. If both scans are done, the test is named a V/Q scan. A lung scan is done to find a blood clot that is preventing the regular blood flow (perfusion) to part of a lung (pulmonary embolism). It is done to evaluate the flow of blood (perfusion) or air (ventilation) through the lungs and assess the amount of damage occurred to the lungs. A lung scan is often done before lung surgery before removing parts of the lung.
Ventilation-Perfusion Lung Scanning for Pulmonary Emboli	The traditional method of lung scanning detects defects of pulmonary artery perfusion. Fake positive results occur because regions of hypoventilation, such as are present in obstructive airways disease, also result in defects of perfusion. The opposite is not true, however, as defects of perfusion continue to be ventilated. Thus in pulmonary embolism ventilation-perfusion, there occurs discrepancy (normal ventilation and impaired perfusion). We have assessed the clinical value of this discrepancy. Out of 18 patients with ventilation-perfusion discrepancy 14 had a final diagnosis of pulmonary emboli, while this diagnosis was not made in any of the 34 patients without the discrepancy. We conclude that combined ventilation-perfusion lung scan differentiates pulmonary emboli from other lung conditions such as asthma and bronchitis which cause impaired pulmonary perfusion. The fake positive rate was only 4% overall and 7.7% in patients with perfusion defects.
What is a lung scan?	A lung scan is a nuclear scanning test that is most commonly used to detect a blood clot that is preventing normal blood flow to part of a lung (pulmonary embolism).
2 Types of Lung Scan	Two types of lung scans are usually done together: * Ventilation scan. During a ventilation scan, a radioactive tracer gas is inhaled into the lungs. Pictures from this scan can show areas of the lungs that are not receiving enough air or that retain too much air. Areas of the lung that retain too much air show up as bright or "hot" spots on the pictures. Areas that are not receiving enough air show up as dark or "cold" spots. * Perfusion scan. During a perfusion scan, a radioactive tracer substance is injected into a vein in the arm. It travels through the bloodstream and into the lungs. Pictures from this scan can show areas of the lungs that are not receiving enough blood. The tracer is absorbed evenly in areas of the lung where the blood flow is normal. These areas show up with the tracer distributed evenly. Areas that are not receiving enough blood show up as cold spots. If the lungs are working normally, blood flow on a perfusion scan matches air flow on a ventilation scan. A mismatch between the ventilation and perfusion scans may indicate a pulmonary embolism. Ventilation and perfusion scans can be done separately or together to diagnose certain lung diseases. If both scans are done, the test is called a V/Q scan. In this case, the ventilation scan is done first.
Why is a lung scan done?	Why It Is Done A lung scan is done to: * Detect a blood clot that is preventing normal blood flow (perfusion) to part of a lung (pulmonary embolism). * Evaluate the flow of blood (perfusion) or air (ventilation) through the lungs. * See what parts of the lungs are working and which are damaged. This is often done before lung surgery to remove parts of the lung.
Why dont doctors encourage people to get regular screening for lung cancer?	Screening for breast, cervical and colon cancers has been shown to reduce your risk of dying of these diseases when compared with those who don't get screened. Doctors recommend screening for these cancers because doing so has been proved to be beneficial for a group of people in the study setting. This same standard should be met for lung cancer before screening is broadly recommended. At this point there isn't convincing evidence that lung CT scan screening results in more good than harm. In fact, a recent study of current and former smokers showed that lung CT scan screening detected three times as many cancers as expected, but also resulted in 10 times as many surgeries as expected, and did not reduce the number of people with advanced cancer or the expected deaths from lung cancer. So the bottom line is the lung CT scan screening did not appear to help.
Precautions	The amount of radioactivity a person is exposed to during these tests is very low and is not harmful. However, if the patient has had other recent radionuclear tests, it may be necessary to wait until other radiopharmaceuticals have been cleared from the body so that they do not interfere with these tests
Description	In a lung perfusion scan, a small amount of the protein labeled with a radioisotope is injected into the patient's hand or arm vein. The patient is positioned under a special camera that can detect radioactive material, and a series of photographs are made of the chest. When these images are projected onto a screen (oscilloscope), they show how the radioactive protein has been distributed by the blood vessels running through the lungs. In a lung ventilation scan, a mask is placed over the nose and mouth, and the patient is asked to inhale and exhale a combination of air and radioactive gas. Pictures are then taken that show the distribution of the gas in the lungs. Each test takes 15-30 minutes.
Preparation	There is little preparation needed for these tests. The patient may eat and drink normally before the procedure. Tests to check for pulmonary embolism are often performed on an emergency basis.
Aftercare	No special aftercare is needed. The patient may resume normal activities immediately.
Risks	There are practically no risks associated with these tests.
Patients from Around the World	England, UK, United States of America, US, USA, United Kingdom, United States, India, Canada, Australia, Philippines, Singapore, Ireland, Pakistan, Malaysia, France, Germany, Hong Kong, Spain, Saudi Arabia, Netherlands, United Arab Emirates, New Zealand, Iran, Egypt, Israel, South Africa, Greece, Belgium, Poland, Taiwan, Indonesia, Japan, Italy, Cyprus, Switzerland, China, Portugal, Thailand, Brazil, Russia, South Korea, Mexico, Norway, Denmark, Sweden, Romania, Malta, Jordan, Nigeria, Sri Lanka, Luxembourg, Kuwait, Lebanon, Bulgaria, Austria, Puerto Rico, Qatar, Kenya, Gibraltar, Hungary, Turkey, Bermuda, Mauritius, Monaco, Tanzania, Finland, Bahrain, Colombia, Ukraine, Trinidad and Tobago, Venezuela, Oman, Argentina, Brunei, Bangladesh, Czech Republic, Vietnam, Cayman Islands, Slovakia, Belarus, Chile, Guernsey, Barbados, Guam, Jamaica, Bosnia and Herzegovina, Serbia and Montenegro, Peru, Nepal, Lithuania, Albania, Sudan, Syria, Costa Rica, Kazakhstan, Gambia, Iraq, Morocco, Panama, Iceland, Azerbaijan, Yemen, Palestinian Territory, Ghana, Moldova, Falkland Islands, Georgia, Fiji, Northern Mariana Islands, Mongolia, Latvia, Macedonia, Angola, Guatemala, British Virgin Islands, Antigua and Barbuda, Serbia, Croatia, Zambia, Senegal, Uganda, Bolivia, Montenegro, Namibia, Uruguay, Dominican Republic, Netherlands Antilles, Algeria, Seychelles

No.	Location	Topic	Description	Link
1	London, UK	Lung Scan	A lung scan or scans is a nuclear scanning test that is most commonly used to detect a blood clot inside lung. A chest X-ray is usually done the same day either before or after the lung scan. A lung scan is usually done by a nuclear medicine technologist	Click Here
2	Europe	Ventilation Lung Scan	The Ventilation lung Scan, Scans assesses the air supply going to your lungs. Once your Ventilation Lung Scan is completed, you will then have a Perfusion Lung Scan. The Perfusion Scan assesses the blood supply going to your lungs. You may be required to have a Chest X-ray before or after the Lung Scan in UK.	Click Here
3	England	EBCT Scan	EBCT scans are non-invasive & can generate a 3D scanning image of the heart and lungs. EBCT scanning or scans is an excellent screening tool that can pick up early heart disease and lung cancer. Scanning involves X-ray exposure, women who are pregnant should not undergo an EBCT scan.	Click Here
4	London, UK	Perfusion Lung Scan	The ventilation lung scan or scans or scanning studies the distribution of air through the lungs and the perfusion lung scan studies the blood supply to and within the lungs. The Lung Perfusion Scan studies the blood supply to and within the lungs.	Click Here
5	Europe	Lung Cancer and CT Scan	Lung Cancer Scanning is a disease in which certain lung cells don't function right, and produce too much tissue forming a Lung Tumor Scans. Lung cancer is a cancer of the lungs characterized by the presence of malignant tumours. Using CT scans to screen for lung cancer can help save lives.	Click Here
6	London, UK	EBCT Lung Scan	EBCT Scans is an excellent tool for lung screening. The EBCT lung scan is a fast, highly accurate, non-invasive and painless procedure. It can image the whole chest in 3D scan enabling even the smallest airways to be seen with startling clarity.EBCT scanning can detect abnormalities such as lung nodules, tumours and emphysema at a very early stage.	Click Here
7	England	Lung Scan	A lung scan is a nuclear scanning test that is most commonly used to detect a blood clot that is preventing normal blood flow to part of a lung (pulmonary embolism). See an illustration of a lung scan in London.Two types of lung scans are usually done:Ventilation scan or scans. During a ventilation scan, a radioactive tracer gas is inhaled into the lungs. Pictures from this scan or scanning can show areas of the lungs that are not receiving enough air or that retain too much air. Areas of the lung that retain too much air show up as bright or “hot” spots on the pictures. Areas that are not receiving enough air show up as dark or “cold” spots. Perfusion scan. During a perfusion scan, a radioactive tracer substance is injected into a vein in the arm. It travels through the bloodstream and into the lungs. Pictures from this scan can show areas of the lungs that are not receiving enough blood. The tracer is absorbed evenly in areas of the lung where the blood flow is normal. These areas show up with the tracer distributed evenly. Areas that are not receiving enough blood show up as cold spots scan.	Click Here
8	United Kingdom	Lung Scanning	What is the purpose of the Lung Scan or Scans?The purpose of the Lung Scan is to detect clots that may have travelled in your bloodstream and lodged themselves in your lungs scanning.What happens during the Ventilation Scan? The Ventilation Scan assesses the air supply going to your lungs. You will breathe in (through a mouth piece) for about three to five minutes an aerosol labelled with a radiopharmaceutical. You will not feel any side effects from this material. After the breathing portion, the Technologist will take pictures of your lungs using a machine called a Gamma camera. This will take about 15-20 minutes.	Click Here
9	Europe	Lung Scan - Early Lung Cancer Screening & Detection with Scans	Lung cancer kills more Americans than any other type of cancer. The five-year survival rate for lung cancer is only 14% in London. However, it's estimated the survival rate may be increased to 80% through early detection and treatment. The lung scan is a tool used for the early detection of lung cancer scanning in UK. Lung cancer tumors are typically the size of an orange by the time they are discovered through a conventional x-ray. However, the lung scan may detect tumors as small as a grain of rice.	Click Here
10	London, UK	Heart Check America's - Lung Scan	Lung cancer kills more American men and women than any other type of cancer. Lung cancer tumors are typically the size of an orange by the time they're discovered in a chest x-ray. CT scans or scan or scanning can detect tumors as small as a grain of rice. The five-year survival rate for lung cancer is only 14%. However, it's estimated this could be increased to 80% through early detection and treatment in London, UK.	Click Here
11	London, UK	Lung Scans	The purpose of lung scans, scan are to detect clots that may have travelled in your bloodstream and lodged themselves in your lungs.There are usually two parts to lung scans: 1) Ventilation Scan or Scans or Scanning 2) Perfusion Scan The Ventilation Scan assesses the air supply going to your lungs. You will breathe in (through a mouth piece) for about three to five minutes an aerosol labelled with a radiopharmaceutical in London. You will not feel any side effects from this material. After the breathing portion, the Technologist will take pictures of your lungs using a machine called a Gamma camera. This will take about 15-20 minutes	Click Here
12	United Kingdom	Lung Scan	An EBT lung scan or scans or scanning is an excellent means of early detection of Lung Cancer, Emphysema, Aneurysm of the Aorta, and other lung ailments in London. Every year 3.5 million people die worldwide from tobacco-related diseases - a third of them are attributable to lung cancer in UK. Having an EBT lung scan, scanning greatly increases your ability to have potential lung cancer detected earlier, and at a more curable stage. Conventional chest x-rays can detect lung cancer, but at a more advanced stage, and usually too late for effective treatment. Only low-dose CT scans or scan, such as ebt lung cancer screening can detect the small nodules of lung cancer at an earlier and potentially more curable stage.	Click Here
13	London, UK	Gallium lung scanning	Gallium lung scanning or scan is widely used to evaluate pulmonary inflammation in patients with interstitial lung disease but has not previously been reported in crocidolite-exposed workers. In order to characterize the pulmonary inflammation caused by crocidolite inhalation, GLS and BAL findings were related to chest x-ray film changes graded according to the ILO classification of roentgenograms of pneumoconioses in UK.	Click Here
14	United Kingdom	Lung Scans Evaluation of Thrombolytic Therapy for Pulmonary Embolism	With Lung Scans, we can now detect and accurately quantify even the smallest amounts of calcium in the Lung. If calcium is detected at the earliest possible time through Lung Scan, this could be years before the first symptoms of lung disease present themselves. Lung Scan UK is specialized CT scanning that measure problem in the lung.	Click Here
15	Europe	Lung Scans	Lung Scan London is used for the diagnosis of lung disease. Lung Scan provides powerful tool in the field of lung disease detection. Lung Scan London department is a centre of excellence for lung disease prevention both nationally and internationally. Lung Scan is a very safe and effective way of detecting and diagnosing the extent of lung disease. This type of lung scan is most likely to be helpful in cases where the exercise test is inconclusive, the patient cannot exercise adequately, or a quantitative evaluation of blood flow is required.	Click Here
16	London, UK	Systematic Lung Scans Reveal a High Frequency of Silent Pulmonary Embolism in Patients With Proximal Deep Venous Thrombosis	A high frequency of asymptomatic pulmonary embolism (PE) has been reported in patients with deep venous thrombosis (Lung Scanning) in studies of a limited number of patients using varying criteria for lung scan assessment. Objectives To estimate the frequency of PE using systematic lung scans in a large group of outpatients with Lung Scanning and to compare the results using varying lung scan assessment criteria. Methods An international multicenter study comparing 2 different regimens of low-molecular-weight heparin nadroparin in Lung Scanning: perfusion lung scans were performed in 622 outpatients with no clinical indication of PE and with proximal Lung Scanning confirmed by venography. Three hundred seventy-nine of these patients underwent ventilation lung scans. High-probability (HP) scans for PE were assessed separately using either ventilation scans or chest radiographs to define mismatched perfusion defects.	Click Here
17	United Kingdom	Results of Lung Scanning	Results Lung Scanning showed abnormalities in 82% of the patients; 59% had segmental defects and 30% had normal scans or scans with a very low probability of PE. Depending on the criteria used, 32% to 45% had HP scans for PE; these percentages were higher in young patients. No relationship was found between extent of thrombosis and Lung Scanning. The estimated frequency of silent PE was 39.5% to 49.5%. During a 3-month follow-up period during which the patients received therapy, the rate of PE recurrence was low (1.3%) and did not differ between patients with baseline HP scans and those with normal scans. Conclusions Regardless of what interpretative criteria are used for assessing lung scans in PE, the frequency of silent PE is 40% to 50% in patients with DVT. A baseline lung scan may easily detect PE in these patients but is not useful for predicting early thromboembolic recurrences that may occur during therapy.	Click Here
18	London, UK	Early diagnosis of inhalation injury using 133 xenon lung scans	Journal of Lung Scanning UK is the only journal in the world devoted to this dynamic and growing subspecialty. Physicians and technologists value the Journal not only for its peer-reviewed articles, but also for its timely discussions about the current and future role of Lung Scans. Original articles address all aspects of Lung Scans London, including interpretation, diagnosis, imaging equipment, and use of radiopharmaceuticals. As the official publication of the American Society of Lung Scans, the Journal also brings readers the latest information emerging form the Society's task forces and publishes guidelines and position papers as they are adopted.	Click Here