What imaging study is commonly used to evaluate gallbladder function?

Ultrasound is the imaging study most commonly used to evaluate gallbladder function due to its non-invasive nature and ability to provide real-time imaging. It is particularly effective for assessing gallbladder size, structure, and the presence of gallstones.

In evaluating gallbladder function, ultrasound can also be used in conjunction with fasting and postprandial challenges to assess gallbladder contraction. This can help determine how well the gallbladder is functioning in response to food, especially fatty meals, which trigger gallbladder contraction to release bile into the intestine.

Other imaging studies, though useful for various aspects of abdominal assessment, do not specifically address gallbladder function as effectively as ultrasound. For example, CT scans and MRIs are more suited for detailed anatomical visualization, while X-rays are limited in soft tissue assessment and are not typically employed for evaluating gallbladder function. Thus, ultrasound stands out as the preferred modality for this specific purpose.