Dorien Rijkaart

Dorien Rijkaart
CZE · radiotherapy

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16
Publications
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756
Citations

Publications

Publications (16)
Article
Full-text available
Introduction: Deep learning (DL) models are increasingly developed for auto-segmentation in radiotherapy. Qualitative analysis is of great importance for clinical implementation, next to quantitative. This study evaluates a DL segmentation model for left- and right-sided locally advanced breast cancer both quantitatively and qualitatively. Method...
Article
Full-text available
Purpose: Intra-operative radiotherapy (IORT) has been used as a tool to provide a high-dose radiation boost to a limited volume of patients with fixed tumors with a likelihood of microscopically involved resection margins, in order to improve local control. Two main techniques to deliver IORT include high-dose-rate (HDR) brachytherapy, termed 'int...
Article
Full-text available
Background Artificial intelligence (AI) shows great potential to streamline the treatment planning process. However, its clinical adoption is slow due to the limited number of clinical evaluation studies and because often, the translation of the predicted dose distribution to a deliverable plan is lacking. This study evaluates two different, delive...
Article
Primary human papillomavirus (HPV)-based screening results in a 2-5% lower specificity for cervical intraepithelial neoplasia grade 2 or worse (CIN2+) compared to Pap cytology. To identify HPV-positive women with CIN2+, we retrospectively evaluated the cross-sectional and longitudinal performance of p16/Ki-67 dual-stained cytology in HPV-positive w...
Article
Full-text available
Primary human papillomavirus (HPV)-based cervical screening will be introduced in The Netherlands in 2016. We assessed the five-year cervical (pre)cancer risk of women with different combinations of HPV- and cytology test results. Special attention was paid to risks for cervical intraepithelial neoplasia grade 3 and 2 or more (CIN3+/2+) of HPV-posi...
Article
Full-text available
Background: Women with borderline/mildly dyskaryotic (BMD) cytology smears are currently followed up with repeat testing at 6 and 18 months. The objective of this study is to analyse the cross-sectional and longitudinal performance of p16/Ki-67 dual-stained cytology for the detection of cervical intraepithelial neoplasia (CIN) grade 3 or worse (CIN...
Article
Cytology-based nation-wide cervical screening has led to a substantial reduction of the incidence of cervical cancer in western countries. However, the sensitivity of cytology for the detection of high-grade precursor lesions or cervical cancer is limited; therefore, repeated testing is necessary to achieve program effectiveness. Additionally, aden...
Article
Full-text available
Background: High-risk human papillomavirus (hrHPV) testing has higher sensitivity but lower specificity than cytology for cervical (pre)-cancerous lesions. Therefore, triage of hrHPV-positive women is needed in cervical cancer screening. Methods: A cohort of 1,100 hrHPV-positive women, from a population-based screening trial (POBASCAM: n = 44,938;...
Article
Full-text available
Our aim was to investigate whether high-risk HPV (hrHPV) mRNA detection by PreTect HPV-Proofer can be used to stratify hrHPV DNA-positive women of different cytology classes for risk of high-grade cervical intraepithelial neoplasia or worse (cervical precancer or cancer, i.e., cervical intraepithelial neoplasia grade 2 or higher [≥ CIN2]). A total...
Article
Full-text available
Human papillomavirus (HPV) testing is more sensitive than cytology for detecting high-grade cervical intraepithelial neoplasia (CIN). We evaluated the performance of high-risk HPV (hrHPV) testing in routine screening. In all, 25,871 women (29-61) enrolled in our population-based cohort study were offered both cytology and hrHPV testing. High-risk H...
Article
Full-text available
Screening women for high-grade cervical intraepithelial neoplasia or cervical cancer (CIN3(+)) by high-risk human papillomavirus (hrHPV) testing has as side-effect the detection of hrHPV-positive women without clinically relevant lesions. Here, we developed an objective assay assessing the methylation status of the promoter regions of CADM1 and MAL...
Article
Full-text available
We evaluated the performance of primary high-risk human papillomavirus (hrHPV) testing by hybrid capture 2 (HC2) with different thresholds for positivity, in comparison with conventional cytology. We used data of 25,871 women (aged 30-60 years) from the intervention group of the VUSA-Screen study (VU University Medical Center and Saltro laboratory...
Article
Full-text available
The cervico-ocular reflex (COR) works in conjunction with the vestibulo-ocular reflex (VOR) and the optokinetic reflex (OKR) in order to prevent visual slip over the retina during head movement. The COR induces eye movements in response to proprioceptive signals from the neck. We investigated whether the COR gain can be adapted by inducing a mismat...

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