نتایج جستجو برای: computer assisted radiotherapy planning

تعداد نتایج: 923795  

Journal: :Clinical Oncology 2021

Technological advancement has facilitated patient-specific radiotherapy in bladder cancer. This been made possible by developments image-guided (IGRT). Particularly transformative the integration of volumetric imaging into workflow. The ability to visualise target using cone beam computed tomography and magnetic resonance initially assisted with determining magnitude inter- intra-fraction chang...

Journal: :journal of dentistry, tehran university of medical sciences 0
hoorieh bashizadeh fakhar elham sadat emadian razavi sepideh soheilifar mohammad javad kharazifard

objectives: the purpose of this study was to develop and test a new tool for radiographic densitometry by combining periapical films and aluminum step wedge. materials and methods: we reviewed 50 kodak e-speed intraoral films. an aluminum step wedge consisting of 16 steps was constructed. each step was 1mmx3mx10mm. the step wedge was exposed to varying exposure times, ranging from 0.05 second t...

Journal: :Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology 1998
P A Coucke A Zouhair M Ozsahin N De Tribolet R O Mirimanoff

PURPOSE To investigate whether whole brain irradiation might be replaced by focalized irradiation after resection of a single brain metastasis in patients where extracranial tumor control is deemed to be obtained. PATIENTS AND METHODS Twelve patients were introduced in a phase I/II prospective study of conformal postoperative external irradiation after resection of a solitary brain metastasis...

2008
Zbigniew Nawrat

s of the XXX ESAO COGRESS „Hi tech & Medicine”. Aachen – Germany, 3-6 September 2003. The Journal of Artificial Organs 2003; 26: 668. 34. Nawrat Z. Perspectives of computer and robot assisted surgery for heart assist pump implantation. Planning for robotically assisted surgery. Lecture notes of the ICB Seminars. Assessment and mechanical support of heart and lungs. Darowski M, Ferrari G (ed.). ...

2014
Eduardo Castillejo Aitor Almeida Diego López-de-Ipiña Liming Chen

The participation of users within AAL environments is increasing thanks to the capabilities of the current wearable devices. Furthermore, the significance of considering user's preferences, context conditions and device's capabilities help smart environments to personalize services and resources for them. Being aware of different characteristics of the entities participating in these situations...

2012
Taku Itoh

The surface reconstruction problem for three-dimensional (3D) scattered point data derived from 3D range scanners has been investigated in fields such as computer graphics (CG) and computer-aided design (CAD) [1, 2]. By using an implicit function-based method, the surface reconstruction problem can be solved. However, it must be noted here that, for generation of an implicit function in general...

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