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Three-dimensional ultrasonography in obstetrics: the clinical value
1Department of Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Techndogy, Wuhan 430030.
Journal of Tongji Medical University = Tong Ji Yi Ke Da Xue Xue Bao
|August 29, 2001
Summary
Three-dimensional ultrasonography (3DUS) enhances prenatal diagnosis by supplementing two-dimensional imaging. Different 3DUS modes vividly display fetal features and bony structures, improving diagnostic confidence.
Area of Science:
- Medical Imaging
- Obstetrics and Gynecology
- Fetal Medicine
Background:
- Two-dimensional ultrasonography (2DUS) is a standard prenatal diagnostic tool.
- Limitations in visualizing complex fetal anatomy exist with 2DUS.
Purpose of the Study:
- To evaluate the clinical utility of three-dimensional ultrasonography (3DUS) in obstetric imaging.
- To compare different 3DUS rendering modes for fetal examination.
Main Methods:
- 30 fetuses in the second and third trimesters were scanned using a transabdominal volume transducer.
- Three-dimensional ultrasonography (3DUS) rendering modes were applied: surface, transparent, and multiplanar.
- Fetal surface morphology, bony structures, and spatial relationships were assessed.
Main Results:
- Surface mode effectively visualized fetal external features (face, limbs, genitalia) and spatial relationships.
- Transparent mode achieved 100% success in displaying fetal bony structures (ribs, vertebrae, crania), irrespective of complexity.
- Multiplanar mode allowed viewing regions of interest from multiple orientations.
Conclusions:
- Three-dimensional ultrasonography (3DUS) serves as a valuable adjunct to 2DUS in obstetrics.
- 3DUS significantly enhances prenatal diagnosis and increases physician diagnostic confidence.