Final answer:
A CT scan is the procedure performed to view a cross-section of an organ. It uses X-ray measurements and computer processing to create detailed images. Ultrasounds, which use sound waves, are preferred during pregnancy due to their non-invasive nature and lack of radiation.
Step-by-step explanation:
The procedure performed to view a cross-section of an organ is a Computed Tomography (CT) scan. This imaging technique involves the use of computer processing of many X-ray measurements taken from different angles to produce cross-sectional images, or virtual slices, of the body. CT scans can show detailed images of any part of the body, including bones, muscles, fat, organs, and blood vessels.
On the other hand, other procedures like ultrasounds are well-suited for monitoring pregnancies, as they are the least invasive method and use high-frequency sound waves instead of radiation, making them safer for the fetus. Magnetic Resonance Imaging (MRI) scans use a magnetic field and radio waves to create detailed images of the organs and tissues. Unlike CT scans and X-rays, MRI does not use ionizing radiation, which can be a significant consideration for certain patient groups.