ABSTRACT
Objective:To explore the diagnostic value of high-frequency ultrasound for Zenker diverticulum.Methods: 15 patients who were suspected as Zenker diverticulum through the diagnosis of using high frequency ultrasound were analyzed in the research. Their appearances of ultrasound were summarized, and these results were compared with barium meal at upper gastrointestinal tract and results of postoperative pathology, respectively.Results: In 15 patients, 4 cases were confirmed by adopting barium meal at upper gastrointestinal tract, and 11 cases were confirmed by adopting postoperative pathology. All of lesions in 15 cases were located on the back of left side of the thyroid gland, and there were 3 kinds of sonographic appearance. The first kind was equal echo lesion, and there were spots and schistoses without echo inside lesion, their form showed a semicircle shape. The second kind was hypoechoic, the form showed irregularity or semi cyclic annular, and the border was clear, and there were strong echogenic spots. The third kind was hyperechoic lesions, and the strong echo were movable with morphological changing after the slight pressure of search unit, and slim half ring low echo wall can be seen indistinctly around lesions.Conclusion:High-frequency ultrasonography is a convenient, rapid and non-invasive method for the diagnosis of Zenker diverticulum, and it is helpful to grasp its ultrasonogram characteristic and examination method in early detection of disease, avoiding misdiagnosis and missed diagnosis. Therefore, it has important clinical value.
ABSTRACT
At present, the evaluation of endometrial receptivity (ER) is a routine research direction in the diagnosis and treatment of infertility, and it has been an key problem that have to be settled urgently in clinical practice. The definition of ER is the ability that endometrium receives embryo implantation, thereby the concept of implantation time windows was proposed. Ultrasound was applied to evaluate ER has series advantages included of convenience, safety, non-invasive and repeatability. Therefore, gynecologists has pay more and more attention to it and it has been the most extensive imaging method in reproductive medicine for studying of ER. This paper through applied ultrasound indicators to review the research progress of evaluating ER from four aspects included morphological index, relative index of blood flow, uterine contraction and endometrial peristaltic wave and endometrial angiography.