نتایج جستجو برای: 3D planning

تعداد نتایج: 382805  

Journal: :iranian journal of medical physics 0
zahra falahatpour m.sc. graduate of medical radiation, nuclear engineering dept., faculty of nuclear engineering, shahid beheshti university, tehran, iran seyed mahmood reza aghamiri associate professor, nuclear engineering dept., faculty of nuclear engineering, shahid beheshti university, tehran, iran robab anbiaee assistant professor, radiotherapy and oncology dept., emam hossein hospital, shahid beheshti university, tehran, iran

introduction: breast conserving radiotherapy is one of the most common procedures performed in any radiation oncology department. a tangential parallel-opposed pair is usually used for this purpose. this technique is performed using 2d or 3d treatment planning systems. the aim of this study was to compare 2d treatment planning with 3d treatment planning in tangential irradiation in breast conse...

Robab Anbiaee Seyed Mahmood Reza Aghamiri, Zahra Falahatpour

Introduction: Breast conserving radiotherapy is one of the most common procedures performed in any radiation oncology department. A tangential parallel-opposed pair is usually used for this purpose. This technique is performed using 2D or 3D treatment planning systems. The aim of this study was to compare 2D treatment planning with 3D treatment planning in tangential irradiation in breast conse...

Positioning service is one of Wireless Sensor Networks’ (WSNs) fundamental services. The accurate position of the sensor nodes plays a vital role in many applications of WSNs. In this paper, a 3D positioning algorithm is being proposed, using mobile anchor node to assist sensor nodes in order to estimate their positions in a 3D geospatial environment. However, mobile anchor node’s 3D path optim...

Journal: :iranian journal of medical physics 0
robab anbiaee assistant professor, radiotherapy and oncology dept., imam hossein hospital, shahid beheshti university, tehran, iran seyed mahmoud reza aghamiri associate professor, nuclear engineering-medical radiation dept., faculty of nuclear engineering, shahid beheshti university, tehran, iran zahra falahatpour m.sc in nuclear engineering-medical radiation, faculty of nuclear engineering, shahid beheshti university, tehran, iran

introduction: radiation therapy following breast conserving surgery is one of the most common procedures performed in any radiation oncology department. a tangential parallel-opposed pair is almost always the technique of choice for this purpose. this technique is often performed based on 3d treatment planning. the aim of this study was to compare 3d treatment planning for two different energie...

Journal: :Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons 2009
Gwen R J Swennen Wouter Mollemans Filip Schutyser

PURPOSE The aim of this report was to present an integrated 3-dimensional (3D) virtual approach toward cone-beam computed tomography-based treatment planning of orthognathic surgery in the clinical routine. MATERIALS AND METHODS We have described the different stages of the workflow process for routine 3D virtual treatment planning of orthognathic surgery: 1) image acquisition for 3D virtual ...

Journal: :basic and clinical cancer research 0
kaveh shirani tak abi department of engendering, science and research branch, islamic azad university, tehran, iran hassan ali nedaie department of medical physics, tehran university of medical science, tehran, iran. hossein hassani department of engendering, science and research branch, islamic azad university, tehran, iran mansour naderi m.sc of medical physics, radiotherapeutic oncology department of cancer institute mohammad babaie radiotherapy oncology department, cancer institute, tehran university of medical science, theran, iran mahmood samei radiotherapeutic oncology, radiation oncology center of karaj, iran

the aim of radiation therapy treatment planning is to achieve an optimal balance between delivering a high dose to target volume and a low dose to healthy tissues. in order to refrain any complications resulting from the dose to the surrounding normal organs, the role of treatment plan has been critically evaluated in term of how large the volume or mass of normal tissues exposed in the radiati...

2016
Juan Ren Wei Yuan Ruihua Wang Qiuping Wang Yi Li Chaofan Xue Yanli Yan Xiaowei Ma Li Tan Zi Liu

OBJECTIVE The purpose of this study was to comprehensively compare the 3-dimensional (3D) magnetic resonance imaging (MRI)-guided and conventional 2-dimensional (2D) point A-based intracavitary brachytherapy (BT) planning for cervical cancer with regard to target dose coverage and dosages to adjacent organs-at risk (OARs). METHODS A total of 79 patients with cervical cancer were enrolled to r...

2012
Andreas DONAUBAUER Martin BREUNIG André BORRMANN Ernst RANK Matthäus SCHILCHER Stefan HINZ Ralf-Peter MUNDANI

SUMMARY The planning of road, railway, and subway tracks in urban environments is a manifold task because of complex legal, environmental, economic, and structural problems. However, skills and knowledge of the participants differ substantially and computer support for complex planning still is at its beginning. Especially computer-aided collaborative planning for 3D city and building models is...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...

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