448. Experimental CT phantom for motion analysis
نویسندگان
چکیده
منابع مشابه
Phantom investigation of 3D motion-dependent volume aliasing during CT simulation for radiation therapy planning
PURPOSE To quantify volumetric and positional aliasing during non-gated fast- and slow-scan acquisition CT in the presence of 3D target motion. METHODS Single-slice fast, single-slice slow, and multi-slice fast scan helical CTs were acquired of dynamic spherical targets (1 and 3.15 cm in diameter), embedded in an anthropomorphic phantom. 3D target motions typical of clinically observed tumor ...
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As there is continuing controversy over the role of F-18-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/CT-fused imaging in radiation therapy (RT) planning, we performed a phantom study to assess the feasibility of FDG-PET/CT-based gross tumor volume (GTV) contouring. The phantom set, consisting of an elliptical bowl and 6 spheres measuring from 10-37 mm in diameter, were filled wi...
متن کاملEffect of high-pitch dual-source CT to compensate motion artifacts: a phantom study.
RATIONALE AND OBJECTIVES To evaluate the potential of high-pitch, dual-source computed tomography (DSCT) for compensation of motion artifacts. MATERIALS AND METHODS Motion artifacts were created using a moving chest/cardiac phantom with integrated stents at different velocities (from 0 to 4-6 cm/s) parallel (z direction), transverse (x direction), and diagonal (x and z direction combined) to ...
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Accepted: July 11 2014
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Introduction: One of the main steps in the optimization process in diagnostic imaging is the quality control of radiology devices. The usual method of CT scan calibration is used of a phantom. The phantom created a certain weakening for the radiation through which it passes. One of the most suitable methods for quantitative analysis of the resolution and contrast in CT scan im...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1990
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003322570