When we undergo physical examination, we will need to have a CT scan. CT is a comprehensive disease detection instrument, commonly known as computerized tomography. Then, what diseases can lung CT detect? What can CT detect? Is CT scanning harmful? Is lung enhancement CT painful? Below, we will actually understand this in detail.

Lung enhancement CT is not painful. The main difference between lung enhancement CT and lung plain CT is the intravenous injection of contrast agent, which is commonly known as diatrizoate. Diatrizoate has a higher concentration than other injections, so it is necessary to find a larger vein, and the needle used will also be thicker, which may cause some pain at the injection site and during the drip. Lung enhancement CT can better detect hidden lung diseases and differentiate benign and malignant nodules than plain CT, so lung enhancement CT is needed when necessary for the disease, and there is no need to worry about the pain of lung enhancement CT.

Common questions before doing CT

1. We need to contact the radiology department one day in advance to arrange for the CT examination, understand common questions, and book the examination time.

2. Pay attention to fasting and alcohol control six hours before the examination. Do not inject glucose and do not engage in strenuous exercise, including long-term exercise.

3. Diabetic patients, pregnant or breastfeeding women, and those undergoing the procedure should inform the medical staff when booking.

4. Due to the uniqueness of radioactive drugs, the scheduled examination time is generally not changeable. If there are special circumstances and you cannot arrive on time, please call 24 hours in advance to reschedule the time.

5. On the day of the examination, bring all materials, including medical history, CT, MRI, pathology, and treatment history, to the CT center.

6. Upon arrival at the center, the reception nurse will attend to the patient and proceed with the material registration. After precise measurement of body weight and blood sugar levels, go to the injection room for intravenous injection of the imaging agent. After injection, you need to lie quietly in bed for 1 hour waiting for the examination. During this period, avoid communication, exercise, making phone calls, watching TV, etc.

7. The nurse will notify the examination. Before the examination, you must urinate, remove metallic objects from your body, and follow the doctor’s advice to drink water. There is no need to move your body during the examination.

8. After the examination, please wait for the doctor’s notification. Leave after the doctor confirms that the image is satisfactory. Some patients may need delayed imaging or enhanced CT imaging, so please be patient.

9. Part of the CT examination requires prior preparation. Patients undergoing CT scans of the head and neck, chest, limbs, and spine generally do not require special prior preparation.