Low‐dose megavoltage cone‐beam computed tomography using a novel multi‐layer imager (MLI)
نویسندگان
چکیده
منابع مشابه
Conebeam computed tomography: legal considerations.
With the introduction of conebeam computed tomography (CBCT) in the early 2000s, oral and maxillofacial radiology fully entered the modern world of 3-dimensional (3D) radiographic imaging. Although conventional or medical computed tomography (CT) had been available since the 1970s, with few exceptions, it had not been widely used in dentistry. In the early days of conventional CT, the machines ...
متن کاملUse of conebeam computed tomography in dentistry.
Conebeam computed tomography (CBCT) is a technology new to dentistry that provides 3-D imaging of the oral and maxillofacial complex. Bitewing, periapical, and panoramic images are commonplace for diagnosis and treatment planning in dentistry. The 3-D data provided by conebeam technology uses a low quantity of radiation and provides insight into anatomy as an adjunct to 2-D imaging. As 3-D imag...
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Accurate dose delivery is essential for the success of intensity-modulated radiation therapy (IMRT) for patients with head-and-neck (HN) cancer. Reproducibility of IMRT dose delivery to HN regions can be critically influenced by treatment-related changes in body contours. Moreover, some set-up margins may not be adaptable to positional uncertainties of HN structures at every treatment. To obtai...
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Computed tomography (CT) dosimetry normally uses an ionization chamber 100 mm long to estimate the computed tomography dose index (CTDI), however some reports have already indicated that small devices could replace the long ion chamber to improve quality assurance procedures in CT dosimetry. This paper presents a novel dosimetry system based in a commercial phototransistor evaluated for CT dosi...
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ژورنال
عنوان ژورنال: Medical Physics
سال: 2020
ISSN: 0094-2405,2473-4209
DOI: 10.1002/mp.14017