What Makes Cat Scans So Helpful?
I have observed that an increased number of my COPD patients have been getting CAT scans. I have also noticed commercials on TV that echo the message: "If you have COPD get scanned." This inspired me to do some of my own research.
This also inspired some questions: What is a CAT scan? How do they prove helpful for COPD patients/ Doctors? Why are commercials recommending COPD patients get scanned?
Here is what I learned.
What is a CT scan?
The test is most commonly referred to as a CAT scan. The acronym refers to Computed Axial Tomograph.
A CAT scan is an advanced X-ray technique that creates detailed cross-sectional images of the body. Focused beams of X-rays generate a 3D image of your lungs on a computer, offering your doctor a more detailed view than a traditional X-ray.
This provides valuable information about your lungs, including the presence of emphysema, a significant component of COPD.1
Why the inclusion of CTs?
In the past, CT scans were NOT typically prioritized as a primary procedure for COPD patients. However, a significant shift occurred with the release of the 2023 Global Initiative for Obstructive Pulmonary Disease (GOLD) report.
The updated GOLD guidelines now advocate for COPD physicians to consider CT scans as a leading diagnostic tool.2
Factors contributing to this recommendation include
CT scans prove valuable in identifying COPD in its early stages, even when symptoms are mild or absent. So, a CT may be indicated for anyone with a history of exposure to cigarette smoke or other harmful airborne particles, such as those in the air at your work.
Perhaps this may be one of the key reasons why you now see advertisements encouraging you to “If you smoked, get scanned.2,3
Disease severity tracking
The GOLD COPD Guidelines consider a pulmonary function test (PFT) as the best test for determining disease severity. However, some patients are unable to do this test or find them very difficult to do.
A CT is now considered a viable option for doctors when attempting to determine disease severity.2,3
Detecting other lung conditions
CT scans can uncover additional lung conditions contributing to symptoms, such as lung cancer, bronchiectasis, and interstitial lung disease. Early identification and treatment of these secondary conditions can enhance symptom control and overall outcomes, all detectable through CT imaging.2-4
Emphysema distribution
CT scans provide a detailed look at how emphysema is distributed within the lungs. This information aids doctors in determining whether patients are suitable candidates for beneficial procedures like lung volume reduction surgery or endobronchial valve replacement, such as Zephyr Valves.2,3
Monitoring acute symptoms
CT scans can be used when you are having flare-ups as part of your workup. This can prove helpful for diagnosing other potential causes of your symptoms, such as pulmonary embolism (PE), heart disease, or lung infection (pneumonia).3
A Pivotal shift
CT scans have transitioned from a secondary diagnostic tool to a pivotal player in COPD management, representing a positive change. This transformation holds substantial potential, greatly assisting doctors in diagnosing and treating COPD.
This is what I have learned about the impact of CT scans on COPD. Now, I'd love to hear your thoughts.
Have you undergone a CAT scan? How did your doctor explain the results? Did these results contribute to your disease management?
Your experiences are valuable—feel free to share in the comments below.
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