Solid-state, flat-panel, digital radiography detectors and their physical imaging characteristics

Cowen, Arnold R.; Kengyelics, Stephen M.; Davies, Andrew G.

doi:10.1016/j.crad.2007.10.014

Cited by 81 publications

(66 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The effective dose was about 1 µSv for the 5 sec exposure. The doses usually carried out in dental clinic are about 0.01 mSv for intraoral radiography, 0.02 mSv for panoramic radiography, 0.04 mSv for dental CT scan in comparison with 0.07 mSv for chest and 3.3 mSv for stomach radiography 26) . The resulting radiation dose in this study is difficult to precisely compare with clinical radiography.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A Preliminary Study on Low-dose X-ray Imaging Using Parametric X-ray

Tanaka

Hayakawa

Takahashi

et al. 2011

J. Hard Tissue Biology.

View full text Add to dashboard Cite

Abstract:Parametric X-ray (PXR) is a new type of radiography with variable monochrome wavelength and high coherent characteristics. The Laboratory for Electron Beam Research and Application (LEBRA) at Quantum Science Institute, Nihon University generated LEBRA-PXR, a system that irradiates Si crystal with electron accelerated by linear accelerator (LINAC). LEBRA-PXR is uniquely developed for world-wide application experiment. X-ray images of tooth samples were taken with flat panel detector using LEBRA-PXR. As a result, images were captured as short as 1 sec. LEBRA-PXR uses LINAC with micro-macro pulse electron beam structure. Imaging time of 1 sec is equivalent to about 0.025 msec when x-ray is converted to actual radiation exposure. The effective dose point estimates of x-rays were about 1 µ Sv/5 sec. Results show that LEBRA-PXR can be used to generate low dose x-ray imaging advocating the possibility of its application in biological studies and medical treatment.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The study clearly shows that using FPD is the closest way to the future low-dose radiographic diagnosis. Cowen et al 26) described the new generation digital image detector and future trends in digital radiology.…”

Section: Discussionmentioning

confidence: 99%

A Preliminary Study on Low-dose X-ray Imaging Using Parametric X-ray

Tanaka

Hayakawa

Takahashi

et al. 2011

J. Hard Tissue Biology.

View full text Add to dashboard Cite

show abstract

“…Taking up a great deal of space, weighing more than 100 lb, the present digital X-ray devices and "rooms" that are primarily designed to install in a radiology suite or for inhospital use in fixed locations, they cannot easily be moved once installed. To solve this problem, many DR systems have been developed with mini-mobile DR systems [4][5][6]. They are gaining importance in radiographic acquisition because they can meet the positioning requirements of nearly all commonly encountered radiography examinations and environments.…”

Section: Introductionmentioning

confidence: 99%

Development of a Mini-Mobile Digital Radiography System by Using Wireless Smart Devices

et al. 2014

View full text Add to dashboard Cite

The current technologies that trend in digital radiology (DR) are toward systems using portable smart mobile as patient-centered care. We aimed to develop a mini-mobile DR system by using smart devices for wireless connection into medical information systems. We developed a minimobile DR system consisting of an X-ray source and a Complementary Metal-Oxide Semiconductor (CMOS) sensor based on a flat panel detector for small-field diagnostics in patients. It is used instead of the systems that are difficult to perform with a fixed traditional device. We also designed a method for embedded systems in the development of portable DR systems. The external interface used the fast and stable IEEE 802.11n wireless protocol, and we adapted the device for connections with Picture Archiving and Communication System (PACS) and smart devices. The smart device could display images on an external monitor other than the monitor in the DR system. The communication modules, main control board, and external interface supporting smart devices were implemented. Further, a smart viewer based on the external interface was developed to display image files on various smart devices. In addition, the advantage of operators is to reduce radiation dose when using remote smart devices. It is integrated with smart devices that can provide X-ray imaging services anywhere. With this technology, it can permit image observation on a smart device from a remote location by connecting to the external interface. We evaluated the response time of the mini-mobile DR system to compare to mobile PACS. The experimental results show that our system outperforms conventional mobile PACS in this regard.

show abstract

“…In the international literature many articles can be found describing digital detector systems and presenting comparisons among various systems with regard to their diagnostic performance [5][6][7][8][9]. The characteristics of the x-ray beam, especially the x-ray beam energy, can also contribute to image quality.…”

Section: Introductionmentioning

confidence: 99%

Performance comparison between three intraoral image receptors of different technology at a variety of tube potential, tube current and exposure time settings using a stepwedge phantom

Katsoni¹,

Tsalafoutas²,

Gritzalis³

et al. 2011

Health

View full text Add to dashboard Cite

Purpose: To comparatively evaluate the performance of three intraoral image receptors of different technology when exposed to different X-ray beam spectra, dose and dose rate levels using a stepwedge phantom. Materials and methods: The intraoral radiographic receptors evaluated were: the Kodak Insight F speed class film, the Kodak RVG 6000, and the Duerr Vistascan Combi PSP system. A dental quality control phantom made of Plexiglas, containing an aluminium stepwedge with 12 steps and 7 holes drilled in each step was radiographed using a dental X-ray unit offering a wide range of tube potential, tube current and exposure time settings. The visibility of the holes in the images produced with each one of the three receptors was assessed by three independent observers. For each image the total image quality score (TS) was derived from the summation of the number of visible holes in each step. The numbers of perceptible holes in each experimental condition (TSs) were statistically analyzed through use of analysis of variance. Intraobserver and interobserver agreement was also measured. Results: Vistascan exhibited the most extended useful exposure range, followed by RVG 6000 and Insight. The performance of all receptors tested was greatly dependent on the exposure parameters and mainly on the kV settings. Overall, the RVG 6000 offered the best image quality at doses somewhere in between those required by the Insight and the Vistascan.

show abstract

Solid-state, flat-panel, digital radiography detectors and their physical imaging characteristics

Cited by 81 publications

References 32 publications

A Preliminary Study on Low-dose X-ray Imaging Using Parametric X-ray

A Preliminary Study on Low-dose X-ray Imaging Using Parametric X-ray

Development of a Mini-Mobile Digital Radiography System by Using Wireless Smart Devices

Performance comparison between three intraoral image receptors of different technology at a variety of tube potential, tube current and exposure time settings using a stepwedge phantom

Contact Info

Product

Resources

About