What imaging technique shows detailed cross sections of tissue?

The chosen answer, which is a CAT scan, is correct because a CAT scan, or computed tomography scan, provides highly detailed cross-sectional images of the body. It combines X-ray technology with advanced computer processing to create slices of various tissues and organs, allowing medical professionals to visualize internal structures in great detail. This is particularly valuable for diagnosing conditions, planning treatment, and evaluating the effectiveness of existing treatment plans.

In contrast, X-rays primarily produce flat, two-dimensional images and are often limited to observing bone structures. Ultrasound uses sound waves to create images, primarily effective for soft tissues and real-time imaging but not typically for detailed cross-sectional views. MRI, while also capable of generating cross-sectional images, does so using magnetic fields and radio waves. While both MRI and CAT scans provide high levels of detail, the specific context of the question emphasizes the CAT scan's strength in producing those detailed cross-sectional images effectively.