Complex sentence: Ultrasonography and Doppler sonography provide useful means to detect appendicitis, especially in children, and shows free fluid collection in the right iliac fossa, along with a visible appendix without blood flow in color Doppler.
Split into simpler sentences: Ultrasonography and Doppler sonography provide useful means to detect appendicitis, especially in children. Ultrasound can also show free fluid collection in the right iliac fossa, along with a visible appendix without blood flow when using color Doppler.