Purpose or Case Report: Background: Volume acquisition in ultrasound is recognized as a helpful tool in prenatal sonography, but notorious for having a steep learning curve. At times, utilizing this technology may be the only way to visualize anatomy due to factors such as maternal body habitus or fetal position. Our goal is provide the audience with the information and techniques required to take a volume sweep acquisition and obtain numerous rendering modes to evaluate the fetal craniofacial area.

Aims:
1. To describe utility and benefit of acquiring volume ultrasound in detection of craniofacial anomalies in prenatal patients.
2. To describe tips, tricks, and current technology to optimize imaging and assist in minimizing equivocal exams.
3. Provide examples of soft tissue lesions, hydrocephalus, craniosynostosis, micrognathia and midline cleft cases.
4. To look into future technology and potential applications.

Methods & Materials: Second and third trimester prenatal ultrasound exams were performed on patients referred for suspected abnormalities. Volume sweeps were acquired on each patient and representative cases chosen to illustrate technical aspects and clinical indications for this procedure were selected. Post-acquisition rendering was performed to illustrate modes to analyze the skeletal system, fluid filled structures, soft tissue, and internal structure contours. Correlation was made with follow up radiology studies, clinical and/or surgical outcomes.

Results: Thorough evaluation and timely diagnosis is essential for optimal management and site of delivery.

Common sites for multiplanar imaging include the bony face and soft tissue anatomy. Demonstration of the methods will be explored and the impact of their clinical application discussed.

Conclusions: Through this exhibit, participants will gain familiarity with the use of multiplanar and spatial volume imaging, and utilize volume imaging as an effective adjuvant tool to routine 2D cross-sectional imaging.