Clinical application of three-dimensional transvaginal ultrasonography in the diagnosis of intrauterine adhesions

Short-term reproductive outcomes analysis and prediction of the modified uterine stent treatment for mild to moderate intrauterine adhesions: experience at a single institution

BACKGROUND

To evaluate the efficacy of modified uterine stent in the treatment of mild-to-moderate intrauterine adhesions and explore the relative indicators affecting prognosis prediction.

METHODS

A total of 115 patients with mild-to-moderate intrauterine adhesions received a modified uterine stent placement after hysteroscopy adhesiolysis. The second-look hysteroscopy operated after 3 months surgery, and the third-look hysteroscopy operated after 6 months surgery if necessary. The stent was removed when the cavity shape was repaired, then the reproductive outcomes were followed up one year.

RESULTS

Menstrual blood volume, endometrial thickness and volume had increased significantly after 3 months surgery. The rates of cavity repaired were 86.96% (100/115) after 3 months surgery and 100% (115/115) after 6 months surgery cumulatively. Endometrial thickness after 3-months surgery was positively associated with uterine cavity shape repaired (P<0.01). The receive operating characteristic (ROC) curve showed the rate of uterine cavity shape repaired predicted by the model was 0.92, based on the endometrial thickness after 3-months surgery. The rate of pregnancy was 86.09% (99/115) in one year, while the rate of miscarriage accounted for 26.26% (26/99). The median time interval between stent removal and subsequent conception was 3 months. It showed adhesion recurrence was the risk factor for subsequent pregnancy (P<0.01).

CONCLUSIONS

A modified uterine stent placement under hysteroscopy was an effective approach for mild-to-moderate intrauterine adhesions, which is easy to operate and worthy for clinical promotion. Endometrial thickness measured by ultrasonography probably has predictive value in adhesion recurrence and subsequent pregnancy.

TRIAL REGISTRATION

ChiCTR2100051524. Date of registration (retrospectively registered): 26/09/2021.

Value of 2D ultrasonography in the diagnosis and evaluation of intrauterine adhesions - a prospective study

RESEARCH QUESTION

What is the value of 2D ultrasonography in the diagnosis and assessment of intrauterine adhesions (IUA)?

DESIGN

This was a prospective study conducted at a hysteroscopy centre.

RESULTS

Of a total of 600 subjects recruited, 41 dropped out and 559 were finally enrolled and analysed. The observed 2D ultrasonography features, in decreasing order of frequency, were 'irregular endometrium' (37.9%), 'broken endometrial echo' (23.4%), 'thin endometrium' (13.7%), 'loss of endometrial echo' (13.1%,), 'hyperechoic focus' (12.5%) and 'fluid in the cavity' (8.8%). The sensitivity of individual ultrasound features ranged from 8.8% to 37.9%, whereas the specificity of individual ultrasound features ranged from 78.9% to 100%. When all the six ultrasound features were considered together, the sensitivity and specificity were 71.7% and 66.2% respectively. The sensitivity, specificity and accuracy of ultrasound diagnosis in the mid-proliferative phase, peri-ovulatory phase and mid-luteal phase did not appear to be significantly different statistically, although the results in the mid-proliferative phase appeared to be consistently higher than those in the mid-luteal phase. In women confirmed to have IUA, the likelihood of the adhesions being severe in nature in the presence of zero, one, two or three or more ultrasound features was 8.7%, 23.0%, 40.2% and 80.5%, respectively (P < 0.001).

CONCLUSIONS

The findings in this study support the notions that ultrasonography examination in women suspected to have IUA cannot replace hysteroscopy in the diagnosis of the condition. However, it does provide useful clinical information regarding severity and could help in the planning of hysteroscopy to optimize management.

Diagnostic Value of Ultrasonography Combined with Hysteroscopy in Intrauterine Space-Occupying Abnormalities

The aim of this study was to analyze the diagnostic significance of ultrasonography combined with hysteroscopy for intrauterine space-occupying abnormalities. A total of 99 patients with uterine space-occupying abnormalities treated in hospitals were enrolled. The patients were divided into three groups according to different disease types: the submucosal myoma group, endometrial polyp group, and placenta residue group, with 33 patients in each group. The differences and diagnostic effects in intrauterine ultrasound, hysteroscopic findings, and surgical histopathology were observed in each group. Outcome measures: it was to compare the sensitivity, specificity, and accuracy of intrauterine ultrasound and angiography for intrauterine space-occupying lesions using surgical and pathological examination methods as the gold standard; the relationship between the location, number, size, appearance, and serosal layer of intrauterine lesions was clearly shown; the location, number, appearance, and echogenicity of space-occupying abnormalities under hysteroscopy were observed. The results showed that the diagnostic rates of endometrial polyps, submucous myoma, and residual placenta were 90.9%, 80.8%, and 72.7%, respectively. However, the sensitivity, specificity, and accuracy of ultrasonography in the diagnosis of endometrial polyps were 90.0%, 66.7%, and 87.9%, respectively; those of hysteroscopy in the diagnosis of endometrial polyps were 96.7%, 66.7%, and 93.9%, respectively; and combined diagnosis was 96.7%, 100.0%, 97.0%, 100.0%, and 75.0%. The sensitivity, specificity, and accuracy of ultrasonography in the diagnosis of submucous myoma of the uterus were 88.9%, 50.0%, and 81.8%, respectively; those of hysteroscopy in the diagnosis of submucous myoma of the uterus were 96.3%, 83.3%, and 93.9%, respectively; and combined diagnosis was 100.0%, 83.3%, 97.0%, 96.4%, and 100.0%. The sensitivity, specificity, and accuracy of ultrasonography in the diagnosis of uteroplacental remnants were 87.5%, 66.7%, and 81.8%, respectively; those of hysteroscopy in the diagnosis of uteroplacental remnants were 91.7%, 77.8%, and 87.9%, respectively; and combined diagnosis was 95.8%, 88.9%, 93.9%, 95.8%, and 88.9%. In summary, ultrasonography combined with hysteroscopy can improve the diagnostic sensitivity and accuracy for intrauterine space-occupying abnormalities.