What type of imaging is utilized to diagnose appendicitis?

The most commonly utilized imaging technique to diagnose appendicitis is a CT scan of the abdomen and pelvis, often performed with oral contrast. This method provides detailed cross-sectional images that can help visualize the appendix, assess for inflammation, and identify any complications such as abscess or perforation.

CT scans are favored because they have a high sensitivity and specificity for appendicitis, enabling clinicians to make accurate diagnoses quickly. The use of oral contrast can enhance the visualization of the intestinal tract, helping to differentiate between appendicitis and other potential causes of abdominal pain.

Other imaging modalities, while useful in certain contexts, may not offer the same level of diagnostic accuracy. For example, ultrasound can be helpful, especially in pediatric patients or pregnant women, but it may not always visualize the appendix clearly. MRI is generally reserved for cases where there is a need to avoid radiation exposure, such as in pregnant patients; however, it is not routinely used for appendicitis diagnosis due to limited availability and higher cost. An X-ray of the abdomen is typically not indicated for diagnosing appendicitis, as it is less effective in identifying the condition compared to the aforementioned methods.