Use of Sonographic Techniques in Pregnancies - Essay Example

Lachman et al. categorically illustrates how sonographic studies relating to the brain's posterior can be achieved through the use of titled axial view. In addition to this, there were some positive results when OSB was used to demonstrate how the fourth ventricle is delineated by a thin membrane (Lachman et al, 103-106). The knowledge of anatomical landmarks is quite significant to sonographers as it can be applied by the management to the provision of counselling (Chaoui et al, 609-612). The posterior brain area can be easily visualized at the same point as the midsagittal essentially for aneuploidies screening. Moreover, the axial plane can be retrieved through trans-vaginal, anterior or other approaches done together for respective examination (fourth ventricle).

To achieve appropriate results about the fact-findings of this research, different methods were used; however, the main approach involved the use of sonographic techniques. Through this method, the examination was done with an aid of a high-resolution ultrasound system. In this regard, sonographic systems such as harmonic imaging high resolution, and wide aperture, which use the applications of cross beam with speckle reduction and dynamic range, were used. In addition, the scanning methods applied enabled the visualization of the midsagittal section and the correct NT measurements were therefore found to be between 84 to 84 mm where fetal images could be magnified to approximately 75% (Tonni, 216-219).

An alternative method was the use of two callipers where one is placed at the internal echogenic while another is placed close to the fetal skin where the nasal bones can easily be visualized. Furthermore, sonography can also be applied in this case as a means of traversing a statistical model and facilitating the calculation of exact material risks to the aneuploidies. These aneuploidies are variously classified as trisomy 21, trisomy 18 and trisomy 13 respectively and allow for an upward probe to enhance a reflection angle method of evaluation. It was therefore discovered that the midsagittal section of normal fetuses and the cisterna magna extend the entire ventricle and are subdivided by an epithelium membrane visualized as trans versing translucently fields with fluid during an 11 to 13 weeks period (Tonni, 216-219).

This research was carried out after monitoring different trimesters to find out how the brain develops to eventually gain normalcy. However, quite several fact findings were used. Notably, when a sample size of 200 normal fetuses aged 11 and 13 weeks was examined, it was discovered that they were characterized by having an anteroposterior diameter of approximately 2.0 mm; in addition, the echogenic lines of the nasal born were made visible and the cross-sections of the nuchal tissues were measured. This was made possible by placing a clipper resenting the soft tissues at the top while another was made at the bottom making it much easier for the sonographer to determine the variation difference by simply doing a measurement. Additionally, there was clear evidence that the marginal section of the normal fetus always had its cisterna magna extended along the whole surface of the ventricle and would only be separated by an epithelium piece of membrane (Tonni, 216-219).

The research was found to be quite credible since the results provide significant information to the sonographers about the detection of OSB and show the various radiology operation and implementation management authorities, and the necessity of counselling pregnant mothers. Moreover, it also provides crucial information on obstetrical patients and comparable needs to assist their progress (Tonni, 216-219).