Lungs Health Archives - Viascan of Las Colinas – Non-Invasive Preventative Body Scan and Screening Services


The lungs are vital organs located in the chest. They are essential to the respiratory system’s ability to breathe in oxygen-containing air (inhalation) and exhale carbon dioxide (exhalation). It is crucial to keep an eye on the health of your lungs since any flaw in this process might have a negative influence on your ability to operate daily. Spirometry is one of the most fundamental medical procedures used to examine lung health; these tests include known as lung scan function tests or pulmonary function tests (PFTs). It necessitates going to the doctor or other medical facility. When lung disorders like asthma necessitate more regular lung health checks, this presents a hurdle. Because of this, one needs to keep an eye on obvious systems that enable home lung health testing.

How to Test Yourself for Lung Cancer?

While there are a number of at-home screening tests available for some diseases, such as colon cancer, lung cancer is not among them. Even if comparable tests are being developed, only a physician can perform tests to diagnose lung cancer at the present time. Early detection of lung cancer might enhance your prognosis. Home testing may be able to detect signals produced by cancer cells even in the absence of symptoms.

To find out whether more testing is required, it’s crucial to follow up with a physician or other healthcare provider because you might misunderstand the results. To diagnose lung cancer, a medical professional may use imaging tests or a biopsy. Since at-home tests still carry some danger, many medical professionals advise against using them.

What Does a Black Spot on your Lung Mean?

A pulmonary nodule is typically described as a spot on the lungs. This is a tiny, spherical tumor on the lung scan that appear on imaging scans as a white spot. These nodules usually have a diameter of fewer than three centimeters (cm). Don’t worry if your doctor discovers a pulmonary nodule on a CT or X-ray of your chest. Most pulmonary nodules are benign or noncancerous, and they are rather frequent. Up to half of all lung CT scans reveal nodules. A malignant lung nodule would often measure more than 3 cm in diameter or exhibit other features, such as an uneven form.

 What is a VQ Scan?

The Ventilation (V) Perfusion (Q) scan, commonly known as a VQ scan, consists of two scans that measure blood and airflow in your lungs. The first scan evaluates the efficiency of your lungs’ airflow. Your lungs’ blood flow path is examined in the second scan. The ventilation scan’s airflow and the perfusion scan’s blood flow should coincide if the lungs are functioning normally.

A discrepancy between the perfusion and ventilation scans (V being superior to Q) may point to a PE or obstruction. You will be given a “tracer,” which is a low-risk radioactive material, for both scans. This material releases radiation that highlights any regions with irregular blood or airflow.

 How Long Does a VQ Scan take?

VQ scans consist of two distinct scans. In the initial scan:

  • You have to be cautious not to move about as you lie on a table.
  • It will be necessary for you to cover your mouth and nose with a breathing mask.
  • You will be required to breathe in a small quantity of low-risk radioactive gas through a tube for around five minutes. You won’t feel any difference after using the petrol.
  • Under a scanner, the table will move; therefore, you must remain still.
  • Your chest and the movement of air in your lungs will be captured by the scanner on camera.

    In the subsequent scan:

  • You have to be cautious not to move about as you lie on a table.
  • A low-risk radioactive dye will be injected into your arm by your doctor.
  • The dye will enter your lungs and pass through your blood.
  • Under a scanner, the table will move; therefore, you must remain still.
  • The imaging device will capture pictures of normal lungs’ blood flow.
  • Each scan takes around 15 minutes, and the whole VQ scan takes between 45 and 60 minutes.

 Can a VQ Scan Detect Lung Cancer?

VQ scans have a limited role in early lung cancer detection. A pulmonary blood clot can be diagnosed with a VQ scan. If untreated, blood clots can be lethal. Your doctor may suggest a VQ scan if you are experiencing signs of a blood clot, such as severe discomfort while breathing in and shortness of breath. A pulmonary embolism, or PE, is another name for a blood clot. Your doctor may also recommend a VQ scan to assess lung function prior to or following surgery. In order to determine your lung function, providers may also utilize a VQ scan: 

  • Following a lung transplant.
  • Prior to having a lung removed entirely or in part surgically.
  • In the course of diagnosing or treating lung disorders such as chronic obstructive pulmonary disease (COPD).

 What Does a Normal CT Scan of the Lungs look like?

A normal-sized lung CT scan for Cancer shows no inflammation, enabling the diaphragm to dilate. Emphysema patients’ lungs may seem over inflated due to muscular atrophy, which distorts the diaphragm. Cystic alterations result from the demise of air sacs. 

  • Physicians may view intricate images of a patient’s lungs using computerized tomography (CT) scans.
  • They resemble X-rays in that they display a bigger picture of the injured area of the body. 
  • Compared to X-rays, lung CT scans may capture a variety of tiny images.

 These may help medical professionals determine whether a patient has emphysema or whether their lungs are in good shape.

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Even while there are tests and gadgets that allow you to perform an at-home lung cancer test, they cannot diagnose or rule out lung cancer on their own. Discuss the findings with a physician or health care facility like Via Scan of Las Colinas, who can use them in conjunction with further diagnostic procedures like lung scans and a biopsy to aid in the diagnosis. The findings of these tests may only be interpreted and recommended courses of action by a physician.

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