Pretorius D H, Nelson T R
Sharp Perinatal Center, University of California, San Diego 92093-0610.
J Ultrasound Med. 1994 Nov;13(11):871-6. doi: 10.7863/jum.1994.13.11.871.
The anatomy of the cranial sutures and fontanelles in the developing fetus is difficult to evaluate using conventional two-dimensional ultrasonography (2DUS). Three-dimensional sonographic imaging (3DUS) was performed on eight normal volunteer pregnant patients after informed consent with conventional 2DUS equipment that had been adapted to obtain 3DUS images. 3DUS images of the cranium were evaluated for the presence of specific cranial sutures and fontanelles. Cranial sutures and fontanelles were identified with 3DUS in all fetuses scanned. The sutures most commonly identified included coronal, lambdoidal, and squamosal. The fontanelles most often identified included anterior, posterior, mastoid, and sphenoid. 3DUS offers the capability of identifying cranial sutures and fontanelles more clearly because volume rendered images show the cranial surface in its entirely rather than as a cross-sectional slice, offering the potential to identify pathologic cranial lesions currently not seen with 2DUS.
利用传统二维超声检查（2DUS）难以评估发育中胎儿的颅缝和囟门解剖结构。在八名正常志愿孕妇患者签署知情同意书后，使用已改装以获取三维超声（3DUS）图像的传统2DUS设备对其进行了三维超声成像检查。对颅骨的3DUS图像评估特定颅缝和囟门的存在情况。在所有扫描的胎儿中，均通过3DUS识别出了颅缝和囟门。最常识别出的颅缝包括冠状缝、人字缝和鳞状缝。最常识别出的囟门包括前囟、后囟、乳突囟和蝶囟。3DUS能够更清晰地识别颅缝和囟门，因为容积再现图像可完整显示颅骨表面，而不是作为一个横截面切片，从而有可能识别出目前2DUS无法发现的病理性颅骨病变。
