Which statement accurately reflects a potential investigation result for intussusception?

The statement regarding an ultrasound showing a target sign accurately describes a typical finding in cases of intussusception. This condition involves a part of the intestine folding into an adjacent segment, which can create an appearance reminiscent of a target on imaging due to the layering of the bowel's walls. The target sign is highly specific for intussusception and is best visualized on ultrasound, which is often the preferred imaging modality in pediatric patients due to its safety, lack of radiation, and effectiveness in diagnosing this condition.

In contrast, the other options relate to different or less specific findings. An X-ray showing air-fluid levels may suggest bowel obstruction, but it is not specific to intussusception. A CT scan displaying dilated bowel loops can indicate various conditions, including but not limited to obstruction or other issues with bowel motility, and is not exclusive to intussusception. An MRI indicating abdominal fluid collection usually points to other forms of abdominal pathology, such as infection or post-surgical complications, rather than intussusception specifically.