D. Timmerman

RESEARCH QUESTION: Is there a difference in recurrence rate of endometrioma(s) after cystectomy versus CO2 laser vaporization of the cyst wall? DESIGN: This single-centre retrospective study included 270 patients undergoing laparoscopic su…

Objectives: To develop a model that can discriminate between different etiologies of abnormal uterine bleeding. Design: The International Endometrial Tumor Analysis (IETA) 1 study is a multicenter observational diagnostic study in 18 bleedi…

The European Society of Gynaecological Oncology (ESGO), the International Society of Ultrasound in Obstetrics and Gynecology (ISUOG), the International Ovarian Tumour Analysis (IOTA) group, and the European Society for Gynaecological Endosc…

The European Society of Gynaecological Oncology (ESGO), the International Society of Ultrasound in Obstetrics and Gynecology (ISUOG), the International Ovarian Tumour Analysis (IOTA) group and the European Society for Gynaecological Endosco…

UNLABELLED: In monotherapy, immunotherapy has a poor success rate in ovarian cancer. Upgrading to a successful combinatorial immunotherapy treatment implies knowledge of the immune changes that are induced by chemotherapy and surgery. METH…

The pelviperineal organs of the female reproductive tract form an essential cornerstone of human procreation. The system comprises the ectodermal external genitalia, the Müllerian upper-vaginal, cervical, endometrial and oviductal derivativ…

STUDY QUESTION: Can the Endometriosis Fertility Index (EFI) be estimated accurately before surgery? SUMMARY ANSWER: The EFI can be estimated accurately based on mere clinical/ultrasound information, with some improvement after adding data …

BACKGROUND: Possible transtubal spillage of malignant cells is a major concern in fluid instillation sonography, as it is in hysteroscopy. This study aims to compare the transtubal flow of gel and saline and validate the clinical hypothesis…

Given the challenges of the current coronavirus (SARS-CoV-2) pandemic and to protect both patients and ultrasound providers (physicians, sonographers, allied professionals), the International Society of Ultrasound in Obstetrics and Gynecolo…

To assess the inter-observer agreement on the Morphological Uterus Sonographic Assessment (MUSA) features among experts and provide improved definitions of the features to facilitate diagnosing adenomyosis. A modified Delphi procedure among…

To evaluate the diagnostic accuracy of transvaginal ultrasound (TVS) to predict overall deep endometriosis (DE) and DE locations by applying the IDEA terminology. This was an international, multicentre prospective diagnostic accuracy study …

OBJECTIVE: To compare the value of using one-stop magnetic resonance imaging (MRI) vs standard radiological imaging as a supplement to transvaginal ultrasonography (TVS) for the preoperative assessment of patients with endometriosis referre…

This report describes a case of a uterine cystic myometrial lesion in a 16-year-old adolescent girl presenting with pelvic pain and severe progressively worsening dysmenorrhoea. Patient's symptoms, ultrasound and MRI were suggestive of juve…

There are many diagnostic methods to assist clinicians in assessing adnexal masses on ultrasound. After suggesting a standardized terminology and measurement technique to evaluate adnexal masses, the International Ovarian Tumor Analysis (IO…

Data on the assessment of adnexal masses during pregnancy is limited. Our objective was to evaluate the use of ultrasound as an adjunct to the management of adnexal masses in pregnant women. A prospective study was performed between Septemb…

Endometrial disorders represent a major gynaecological burden. Current research models fail to recapitulate the nature and heterogeneity of these diseases, thereby hampering scientific and clinical progress. Here we developed long-term expa…

OBJECTIVE: To generate guidance for detailed uterine niche evaluation by ultrasonography in the non-pregnant woman, using a modified Delphi procedure amongst European experts. METHODS: Twenty gynecological experts were approached through t…

OBJECTIVE: To describe the clinical and ultrasound characteristics of ovarian pure endometrioid carcinomas. METHODS: This was a retrospective multicenter study of patients with a histological diagnosis of pure endometrioid carcinoma. We id…

OBJECTIVE: To describe the clinical and ultrasound characteristics of ovarian pure clear cell carcinoma. METHODS: This was a retrospective study involving data from 11 ultrasound centers. From the International Ovarian Tumor Analysis (IOTA…

In 2015, the international Morphological Uterus Sonographic Assessment (MUSA) group published a consensus on which terminology to use when describing myometrial lesions seen on ultrasonography1. The use of MUSA terminology to describe ultra…

The endometrium, which is of crucial importance for reproduction, undergoes dynamic cyclic tissue remodeling. Knowledge of its molecular and cellular regulation is poor, primarily owing to a lack of study models. Here, we have established a…

OBJECTIVE: To compare ultrasonographic features of uterine lesions with the findings at macroscopy and microscopy. METHODS: Case series of ten consecutive women undergoing a hysterectomy for uterine pathology. A preoperative transvaginal u…

To describe clinical and ultrasound features of ovarian clear cell carcinoma (CCC). Patients with a histological diagnosis of ovarian CCC, who had undergone preoperative ultrasound examination, were retrospectively identified from ten ultra…

To describe clinical and ultrasound features of ovarian endometrioid carcinoma. Patients with a histological diagnosis of ovarian endometrioid carcinoma, who had undergone preoperative ultrasound, were retrospectively identified from 10 ult…