Results 1 to 10 of about 19,423 (220)

Hybrid tandem and ovoids brachytherapy in locally advanced cervical cancer: impact of dose and tumor volume metrics on outcomes

Journal of Contemporary Brachytherapy, 2021
Purpose To report the impact of dose and tumor volume metrics at brachytherapy on outcomes for locally advanced cervical cancer treated with tandem and ovoids intracavitary/interstitial brachytherapy.
Amanda Rivera, Monica Wassel, Patrik N. Brodin, Ravindra Yaparpalvi, Christian Velten, Rafi Kabarriti, Madhur Garg, Shalom Kalnicki, Keyur J. Mehta   +8 more
doaj   +2 more sources

Mathematical interpretation of artificial ovoids and avian egg shapes (part I)

Regulatory Mechanisms in Biosystems, 2019
We performed comparative analysis of curvature characteristics of bird eggs and used ovoid profiles from various authors, our own geometric profiles, and archive bird egg profiles from our database. We suggested that the possible ovoids arise by changing
I. S. Mytiai, A. V. Matsyura
doaj   +2 more sources

Dosimetric effects of the Smit sleeve on high-dose-rate brachytherapy tandem and ovoids plans for patients with locally advanced cervical cancer

Journal of Contemporary Brachytherapy, 2019
Purpose Smit sleeves are used to facilitate insertion of the intrauterine tandem during brachytherapy for cervical cancer. When a tandem and ovoids system is used the base of the Smit sleeve displaces the ovoids distally.
Shahil Mehta, Benjamin Farnia, Alberto la Zerda, Robabeh Rahimi, Aaron Wolfson, Lorraine Portelance   +5 more
doaj   +2 more sources

Case report: Cervical brachytherapy technique for locally advanced cervical cancer in a patient with complete bicorporeal uterus [PDF]

Frontiers in Oncology
PurposeThe purpose of this study was to describe an approach to cervical brachytherapy for a patient with a complete bicorporeal uterus and locally advanced cervical cancer (LACC).Materials and methodsThe patient was a 53-year-old woman with a complete ...
Lipeng Ding, Lipeng Ding, Zhangcai Zheng, Yueao Cao, Zhenjiang Wang, Baoyu Zhu, Guoying Miao, Wenzhen Yuan   +7 more
doaj   +2 more sources

Three-dimensional trans-rectal and trans-abdominal ultrasound image fusion for the guidance of gynecologic brachytherapy procedures: a proof of concept study [PDF]

Scientific Reports
High dose-rate brachytherapy is a treatment technique for gynecologic cancers where intracavitary applicators are placed within the patient’s pelvic cavity. To ensure accurate radiation delivery, localization of the applicator at the time of insertion is
Tiana Trumpour, Carla du Toit, Alissa van Gaalen, Claire K. S. Park, Jessica R. Rodgers, Lucas C. Mendez, Kathleen Surry, Aaron Fenster   +7 more
doaj   +2 more sources

Comparison of dosimetric analysis of organs at risk and target volumes for ovoids and cylinders in endometrial carcinoma [PDF]

Journal of Contemporary Brachytherapy, 2023
Yashaswini BR, Tanvir Pasha, Rekha Reddy, Naveen T, Siddanna R Palled, Uday Krishna, Lokesh V, Sridhar P, Nikhila R, Thejaswini B, Chundru Swaroopa   +10 more
doaj   +2 more sources

On the Classification of Low-Degree Ovoids of Q(4,q) [PDF]

Combinatorica, 2022
Ovoids of the non-degenerate quadric Q(4,q) of PG(4,q) have been studied since the end of the’ 80s. They are rare objects and, beside the classical example given by an elliptic quadric, only three classes are known for q odd, one class for q even, and a ...
D. Bartoli, N. Durante
semanticscholar   +1 more source

Automatic segmentation of high-risk clinical target volume for tandem-and-ovoids brachytherapy patients using an asymmetric dual-path convolutional neural network.

Medical Physics (Lancaster), 2022
PURPOSES Pre-implant diagnostic MRI is the gold standard for image-guided tandem-and-ovoids brachytherapy for cervical cancer. However, high dose rate (HDR) brachytherapy planning is typically done on post-implant CT-based high-risk clinical target ...
Yufeng Cao, A. Vassantachart, O. Ragab, S. Bian, P. Mitra, Zhengzheng Xu, A. Gallogly, J. Cui, Z. Shen, S. Balik, M. Gribble, Eric Chang, Z. Fan, Wensha Yang   +13 more
semanticscholar   +1 more source

Covers of generalized quadrangles, 2. Kantor-Knuth covers and embedded ovoids [PDF]

Finite Fields Their Appl., 2020
In this paper, which is a sequel to \cite{part1}, we proceed with our study of covers and decomposition laws for geometries related to generalized quadrangles.
J. Thas, K. Thas
semanticscholar   +1 more source

Segmental formation of the main nerves of the sacral plexus [PDF]

Науковий вісник ветеринарної медицини, 2022
The study of segmental innervation may be of practical interest, as pathological processes involving organs and tissues can be caused by damage to both peripheral and individual segmental nerves.
Novak V., Bevz O., Melnychenko A., Ilnitsky M., Prysyazhnyuk N.   +4 more
doaj   +1 more source