Coronal sonography: a review of abdominal applications.

Many abdominal structures are optimally imaged in the coronal plane because of their unique shape or environment. Routine application of coronal ultrasound scanning to the spleen, kidneys, and liver is advocated. Adjunctive coronal images of the biliary tract, inferior vena cava, aorta, and retroperitoneum complement or frequently provided diagnostic information unavailable in routine views. Inadequacy of acoustic windows or limitations of tissue-beam interaction encountered in transverse and sagittal projections may be overcome with coronal scans.