نتایج جستجو برای: gantry angle
تعداد نتایج: 131688 فیلتر نتایج به سال:
PURPOSE The purpose of this article is to present the first imaging experiments to demonstrate the functional equivalence between a conventional rotational gantry and a fixed-beam imaging geometry, and the feasibility of an iterative image-reconstruction technique under gravitational deformation. METHODS AND MATERIALS Experiments were performed using an Elekta Axesse with Agility MLC and XVI,...
This paper describes the design and development of harvesting system for the gantry system to harvest eggplants. For this purpose, the harvesting robot was successfully designed and fabricated for the gantry system to harvest eggplants. The operation of the harvester was controlled by Programmable Logic Controller (PLC). Basically, the limit switches, DC motor, and relay are connected to the PL...
An isocentric superconducting rotating-gantry for heavy-ion therapy is being developed [1]. This rotating gantry can transport heavy ions having 430 MeV/u to an isocenter with irradiation angles of over ±180°, and is further capable of performing fast raster-scanning irradiation [2]. A layout of the beam-transport line for the compact rotating-gantry is presented in Fig. 1. The rotating gantry ...
While a few physicists have designed new plan check automation solutions for their clinics, fewer, if any, managed to adapt existing solutions. As complex and varied as the systems they check, these programs must gain the full confidence of those who would run them on countless patient plans. The present automation effort, planCheck, therefore focuses on versatility and ease of implementation a...
Abstract Arc-therapy and flash therapy are promising proton treatment modalities as they enable further sparing of the healthy tissues surrounding tumor site. They impose strong constraints on beam delivery system rotating gantry structure, in particular providing high dose rate fast energy scanning. Fixed-field achromatic transport lattices potentially satisfy both allowing instant modulation ...
camera, and x-ray tube (partially hidden below table), attached to a floor-mounted parallelogram gantry to allow complex angulation; (2) lateral plane image chain attached to a ceiling-suspended gantry that can be moved into place when biplane imaging is desired; (3) and (4) television monitors for AP and lateral image chains; (5) movable radiation shield to protect operators from scatter dose ...
BACKGROUND High-speed rotational coronary venous (CV) angiography (RCVA) permits dynamic, multi-angle visualization of the CV anatomy. METHODS AND RESULTS RCVA uses a rapid isocentric rotation over a 108 degrees arc, right anterior oblique (RAO) 54 degrees to left anterior oblique (LAO) 54 degrees, in 4 s. Three-dimensional models of the venous tree were reconstructed, and the rotational imag...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید