what is a PET scan - #19255

A few days ago, I heard about a medical test called a PET scan, and I realized that I don’t fully understand what it is used for. I know that it’s a type of imaging scan used to detect diseases inside the body, but I want to learn more about how it works and why doctors recommend it. Since Ayurveda takes a different approach to diagnosing and understanding illnesses, I am also curious whether there are Ayurvedic methods that provide similar insights as a PET scan but in a natural way. From what I read, a PET scan (Positron Emission Tomography) is often used to detect cancer, brain disorders, and heart diseases. It involves injecting a radioactive substance into the body, which helps doctors see how different organs and tissues are functioning. But I also read that exposure to radiation, even in small amounts, can have long-term risks. If someone needs a PET scan, should they take any Ayurvedic detox measures afterward to help remove toxins from the body? Another thing I’m curious about is how Ayurveda identifies diseases without using modern scans. Since Ayurveda focuses on reading the body’s signals, like pulse diagnosis (Nadi Pariksha) and tongue analysis, does it offer alternative ways to detect imbalances that a PET scan might reveal? Are there any Ayurvedic diagnostic techniques that help assess organ health naturally? I also read that a PET scan is sometimes used to check how well cancer treatments are working. Since Ayurveda also offers supportive care for cancer patients, does it have herbs or therapies that improve the body’s ability to heal and detoxify after treatments like chemotherapy or radiation? One concern I have is whether a PET scan is always necessary for detecting diseases. Are there conditions where Ayurveda suggests relying on symptoms and natural diagnostic methods instead of medical scans? If someone needs a PET scan, how can Ayurveda support their overall health before and after the test? I’m interested in understanding how modern medical imaging like a PET scan compares with traditional Ayurvedic diagnostic techniques. What are the best Ayurvedic approaches for assessing health, preventing diseases, and supporting the body through medical tests like a PET scan?