[Comparison between Ultrasonography and CT in Diagnosis of Cervical Lymph Node Metastasis of Papillary Thyroid Carcinoma].

Objective To evaluate the efficacy of ultrasound and computed tomography (CT) in diagnosing cervical lymph node metastasis (CLNM) of papillary thyroid carcinoma (PTC). Methods The patients with PTC treated by surgery in the Chinese PLA General Hospital from January 2016 to January 2021 were selected for analysis.All the patients underwent preoperative ultrasound and CT examinations,the diagnostic values of which for CLNM were retrospectively analyzed.

Sonographic appearances of retained surgical sponges in the abdomen and pelvis.

Purpose: To describe the sonographic (ultrasound-US) features of retained surgical sponges (RSSs) and compare them with the pathological findings.

Methods: Ultrasound features of RSSs in nine patients (seven women and two men) identified between June 1996 and July 2015 were retrospectively analyzed. Patient characteristics including gender and age, location of the sponge, time interval until diagnosis, clinical presentation, and patient complaints were evaluated.

The effects of lauromacrogol injection into rat endometrial cysts: a preliminary experimental study.

Objective: To determine the effectiveness of different concentrations of lauromacrogol injections for the treatment of endometriosis in an experimental animal model and to provide an experimental basis for a pre-clinical application of the drug.

Methods: After autologous transplantation of endometrial tissue, 40 endometrial cysts were successfully established and randomly divided into three groups: a 1 % lauromacrogol injection group, a 0.5 % lauromacrogol injection group, and cysts without intervention (control group).

[Value of detection of cell-free fetal DNA in maternal plasma in the prenatal diagnosis of chromosomal abnormalities].

Objective: To investigate the value of detection of fetal cell-free fetal DNA (cff-DNA) in maternal plasma in the prenatal diagnosis of chromosomal abnormalities.

Methods: The plasma from 3200 gravidas (singleton with 20.3 ± 3.

[Prenatal genetic test and clinical guidance for 213 hereditary deaf families].

Objective: To summarize the workflow, strategy and experience of prenatal genetic test for deafness based on the 6-year clinical practice.

Methods: There were 213 families who received prenatal test from 2005 to 2011. Among the 213 families, 205 families had had one deaf child, including 204 couples with normal hearing and one couple of the deaf husband and normal wife, 8 families including 6 couples with normal hearing and 2 deaf couples, had no child before test.

[Detection of trisomy 21 by quantitative fluorescent PCR in clinical samples undergoing prenatal diagnosis for hereditary hearing loss].

Objective: To establish the genetic test technique of trisomy 21 concurrently conducts with prenatal diagnosis for hereditary hearing loss.

Methods: Fifty-four pregnant women who underwent prenatal diagnosis for hearing loss of their fetuses in Chinese People's Liberation Army General Hospital from March 2009 to May 2010 were enrolled in this study. All probands from the deaf families have confirmed the causative mutation for hearing loss in Genetic Testing Center in Chinese People's Liberation Army General Hospital.

[Diagnosis of spina bifida in fetuses using tomographic ultrasound imaging: a preliminary study].

Objective: To assess the value of tomographic ultrasound imaging (TUI) in the diagnosis of spina bifida in fectuses.

Methods: Eight fetuses suspected of having spina bifida following 2-D ultrasound underwent TUI examination. The fetal spines were observed on the coronal, transverse and sagittal views to confirm the location and severity of the spinal lesions, and the ultrasound findings were compared with the pathological results.

[Prenatal diagnosis for hereditary deaf families assisted by genetic testing].

Objective: To provide prenatal diagnosis for deaf families, which the first child was confirmed to be hereditary deafness caused by gap junction beta-2 (GJB2) or SLC26A4 (PDS) mutation, to avoid another deaf birth in these families.

Methods: Eight deaf families joined in this study. Each family had one child with severe to profound hearing loss while parents had normal hearing except a deaf father from family 8; mothers had been pregnant for 6-28 weeks.

[Establishment of animal models of endometriosis in rhesus monkeys].

Objective: To establish animal models of endometriosis in rhesus monkeys and study the invasion mechanism of endometriosis.

Methods: Five female healthy rhesus monkeys with regular menstrual cycles were selected, of whom 4 were used for endometriosis model establishment and 1 for control. During the period of days 8-15 of menstruation, or 3-5 days after the midcycle estrogen peak, the endometrium was implanted into the pelvic cavity other than the uterus in the experimental group, and in the control group, the greater omentum was implanted instead.