Final answer:
A CT with IV Contrast, or CT Angiogram (CTA), is a medical imaging technique that uses contrast material and CT scanning to give a detailed view of blood vessels, which is crucial for diagnosing vascular diseases. The scan generates detailed cross-sectional or three-dimensional images, but also exposes patients to higher radiation levels.
Step-by-step explanation:
A CT with IV Contrast, also known as a CT Angiogram or CTA, is an advanced medical imaging technique that enhances the content loaded image of a conventional computed tomography (CT) scan. This procedure provides detailed information about the vascular system and helps in detecting abnormalities such as blockages or aneurysms In a CT Angiogram, a contrast agent is administered intravenously to the patient. As X-rays pass through the body, they are absorbed at different levels, which allows for a more detailed view when the contrast highlights the blood vessels. The resulting images from these CT scans are reconstructed by a computer, generating a cross-sectional or three-dimensional view of the scanned area, highly detailed enough to observe soft tissues. The development and refinement of computed tomography since the 1970s have considerably improved the accuracy of medical diagnoses and evaluations, especially for soft tissue imaging. However, it is crucial to note that CT scans expose patients to higher levels of radiation compared to standard X-rays, and precautions should be taken to minimize any associated risks.