Results 1 to 10 of about 1,088,040 (302)

Dosimetric comparison of organs at risk in ultra-hypofractionated versus hypofractionated postoperative radiotherapy for early breast cancer: single center clinical study [PDF]

Radiology and Oncology
Growing evidence of safety and feasibility has prompted a shift toward ultra-hypofractionated (UHF) schedules in postoperative radiotherapy in early breast cancer.
Petkovska Gordana, Ratosa Ivica, Trajanovska Valentina Bojovska, Iljovska Marina, Creslovnik Albina Pupakovski, Lazareva Emilija   +5 more
doaj   +2 more sources

Deep learning-based delineation of whole-body organs at risk empowering adaptive radiotherapy [PDF]

BMC Medical Informatics and Decision Making
Background Accurate delineation of organs at risk (OARs) is crucial for precision radiotherapy. Most previous autosegmentation models were only constructed for single anatomical region without evaluation of dosimetric impact.
Zi-Hang Chen, Song-Feng Li, Ling-Xin Xu, Meng-Qiu Tian, Feng Li, Yu-Xian Yang, Chen-Fei Wu, Guan-Qun Zhou, Li Lin, Yao Lu, Ying Sun   +10 more
doaj   +2 more sources

Clinical advances and challenges in dose constraints for organs at risk in proton therapy: A systematic review of the last decade's literature [PDF]

Precision Radiation Oncology
Proton beam therapy has demonstrated significant clinical efficacy across multiple malignancies, primarily attributed to its distinct physical dose deposition characteristics.
Jinghao Duan, Cheng Tao, Shizhang Wu, Chengqiang Li, Jinhu Chen, Tianyuan Dai, Yunyi Fan, Tong Bai, Xiangjuan Meng, Tian Kong, Jian Zhu   +10 more
doaj   +2 more sources

Evaluation of the accuracy of cone-beam CT–based dose calculation for target volumes and organs at risk in left-sided breast cancer radiotherapy [PDF]

Frontiers in Oncology
IntroductionAccurate dose calculation is essential in breast cancer radiotherapy. This study aimed to evaluate the feasibility and accuracy of cone-beam CT (CBCT) images with HU–relative electron density (HU-RED) correction for dose calculation in left ...
Xiaoxiao Hou, Zhenglu Bai, Xiaoxiao Jin, Erxun Dai, Yaqi Jiang, Jun Ma, Jun Li   +6 more
doaj   +2 more sources

Assessment of feasibility of cochlear sparing optimized radiotherapy in nasopharyngeal squamous cell carcinoma using high conformal radiation technique

Asian Journal of Medical Sciences, 2023
Background: One of the most prevalent head-and-neck tumors in Southeast Asia is nasopharyngeal carcinoma (NPC). Each year, NPC causes 84,400 new cases and 51,600 fatalities worldwide.
Nikhila Ponnachiparambil Chandrabose , Grace Mercy Priscilla Balu , Sivagnanam Balaji , Jeeva Sivasami , Narmatha Mariyappan , Satheesh Kumar Anbazhagan   +5 more
doaj   +1 more source

Intensity-Modulated Radiation Therapy (IMRT) Versus Rapidarc in the Treatment of Carcinoma Left Breast – Finding the Optimal Radiation Therapy Technique [PDF]

Iranian Journal of Medical Physics, 2023
Introduction: This study aimed to evaluate the dosimetric variations and treatment efficacy between intensity-modulated radiotherapy (IMRT) and double-arc RapidArc for irradiation of carcinoma left breast, focusing on adequate target coverage, sparing of
Preety Negi, Raja Sellapandiyan, Himanshu Srivastava, Harnoor Pruthi, Gokul Anandhan, Priyanka Singh   +5 more
doaj   +1 more source

Langerhans Cell Histiocytosis in Children: Literature Review

Вопросы современной педиатрии, 2023
Relevant information on Langerhans cell histiocytosis development and course in children is presented. The current concepts of disease pathogenesis, principles of its severity evaluation, patients stratification into risk groups, as well as of clinical ...
Evgeniy A. Burtsev, Gleb O. Bronin
doaj   +1 more source

Evaluation of Volumetric Doses of Organs at Risk in Carcinoma Cervix Patients with HDR Intracavitary Brachytherapy and Comparison of CT-based and Conventional Plans [PDF]

Journal of Biomedical Physics and Engineering, 2019
Background: Brachytherapy treatment planning in cervix carcinoma patients using two dimensional (2D) orthogonal images provides only point dose estimates while CT-based planning provides volumetric dose assessment helping in understanding the correlation
Sh Srivastava, N K Painuly, S P Mishra, K Srivastava, N Singh, S Singh, M L B Bhatt   +6 more
doaj   +1 more source

Evaluation of deep learning-based autosegmentation in breast cancer radiotherapy

Radiation Oncology, 2021
Purpose To study the performance of a proposed deep learning-based autocontouring system in delineating organs at risk (OARs) in breast radiotherapy with a group of experts. Methods Eleven experts from two institutions delineated nine OARs in 10 cases of
Hwa Kyung Byun, Jee Suk Chang, Min Seo Choi, Jaehee Chun, Jinhong Jung, Chiyoung Jeong, Jin Sung Kim, Yongjin Chang, Seung Yeun Chung, Seungryul Lee, Yong Bae Kim   +10 more
doaj   +1 more source

Evaluation of Three-Dimensional Conformal Radiotherapy and Intensity Modulated Radiotherapy Techniques for Left Breast Post-Mastectomy Patients: Our Experience in Nigerian Sovereign Investment Authority-Lagos University Teaching Hospital Cancer Center, South-West Nigeria

European Journal of Breast Health, 2021
Objective:This study aimed to evaluate the dosimetric properties of treatment plans obtained from three-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated radiotherapy techniques (IMRT) plans for left chest wall breast cancer patients ...
Samuel Adeneye, Michael Akpochafor, Bolanle Adegboyega, Adewumi Alabi, Nusirat Adedewe, Adedayo Joseph, Omolara Fatiregun, Akintayo Omojola, Abe Adebayo, Esther Oluwadara   +9 more
doaj   +1 more source