作者: phlegm 時(shí)間: 2025-3-22 00:07 作者: 鎮(zhèn)痛劑 時(shí)間: 2025-3-22 01:57 作者: Overthrow 時(shí)間: 2025-3-22 05:40
Technical trends of the CR systemgy (ICR; Brussels) and Radiological Society of North America (RSNA) meeting (Chicago); 1983, the first CR system is brought on the market; 1985, the second generation system is brought on the market (a built-in type is also announced). With the full-scale introduction of the second generation system作者: 中國(guó)紀(jì)念碑 時(shí)間: 2025-3-22 11:15
An introduction to clinical utilization of CRgital radiograms with high spatial and high density resolution to be obtained at a relatively low X-ray dose. In order to make this new technique better be utilized, certain problems associated with it will be discussed here.作者: Forehead-Lift 時(shí)間: 2025-3-22 13:22 作者: Forehead-Lift 時(shí)間: 2025-3-22 19:30
Breast and thyroid, both mammography and neck roentgenography would appear to be good applications for CR. However, in a strict sense, CR is poor in its capacity to depict the fine detail of microcalcifications in the breast compared with the nonscreen technique. It seems that this problem comes from the limitation o作者: 等待 時(shí)間: 2025-3-22 22:58 作者: Fissure 時(shí)間: 2025-3-23 02:59
Biliary tract systemusion cholecystocholangiography (DIC) combined with tomography, CR produced better images than the screen film; even in the case of low-dose exposure, CR was thought to be sufficiently usable for clinical diagnosis. In simultaneous multisection tomography, CR could probably present even better image作者: 緯線 時(shí)間: 2025-3-23 07:20
Intravenous digital subtraction angiographyplates. We have so far used this system for angiography, taking advantage of one of the features of CR, namely that it allows easy subtracton because it performs analog to digital conversion in the course of processing [1, 2]. Another type of digital angiography is digital fluorography (DF) using an作者: badinage 時(shí)間: 2025-3-23 10:04 作者: synovitis 時(shí)間: 2025-3-23 16:15
Diseases of the bones and jointsses, the diagnostic capability of CR is evaluated as comparable or superior to that of screen/film techniques. However, due to its limited spatial resolution, this new technique does not have sufficient capability to visualize bone microstructures. In this chapter, the advantages and disadvantages o作者: albuminuria 時(shí)間: 2025-3-23 19:53
https://doi.org/10.1007/978-4-431-66884-8X-ray; angiography; children; diseases; evaluation; gastrointestinal tract; hospital; hospitals; image proce作者: Optimum 時(shí)間: 2025-3-23 23:11 作者: 確定無疑 時(shí)間: 2025-3-24 06:24 作者: ensemble 時(shí)間: 2025-3-24 06:41
https://doi.org/10.1007/978-3-642-66784-8btained with the conventional screen/film system. CR is thus recognized as a new system which can deal with many angiograms. This chapter presents clinical cases of intra-arterial DSA using CR and the advantages and problems of this system are discussed.作者: 易彎曲 時(shí)間: 2025-3-24 12:42 作者: VOC 時(shí)間: 2025-3-24 18:07
Vladimir I. Nekorkin,Manuel G. Velardeed as a substitute for the screen/film system. The IP is made by densely applying particles of inorganic crystals called photostimulable phosphor onto a polyester film. The phosphor layer has the function of recording an X-ray image. The photostimulable phosphor is a special luminescent material whi作者: Flatus 時(shí)間: 2025-3-24 20:23
Rudolf Friedrich,Joachim Peinke,Oliver Kampssible image to allow reading and diagnosis. The following displaying methods are available: (1) CRT monitor for direct reading; (2) exposure on a film from a CRT monitor by an optical system like a multiformat camera and display as a film image for reading; (3) direct recording on a film from image 作者: anagen 時(shí)間: 2025-3-25 00:39 作者: AGGER 時(shí)間: 2025-3-25 05:58 作者: Exposure 時(shí)間: 2025-3-25 07:39 作者: grovel 時(shí)間: 2025-3-25 11:38
Transition to Turbulence in a Fluid Flow, both mammography and neck roentgenography would appear to be good applications for CR. However, in a strict sense, CR is poor in its capacity to depict the fine detail of microcalcifications in the breast compared with the nonscreen technique. It seems that this problem comes from the limitation o作者: 脆弱帶來 時(shí)間: 2025-3-25 17:47 作者: 突變 時(shí)間: 2025-3-25 21:51 作者: ABOUT 時(shí)間: 2025-3-26 01:30
Cooperative Effects in Fluid Problemsplates. We have so far used this system for angiography, taking advantage of one of the features of CR, namely that it allows easy subtracton because it performs analog to digital conversion in the course of processing [1, 2]. Another type of digital angiography is digital fluorography (DF) using an作者: 膝蓋 時(shí)間: 2025-3-26 04:20 作者: 涂掉 時(shí)間: 2025-3-26 09:06 作者: heirloom 時(shí)間: 2025-3-26 16:26 作者: insecticide 時(shí)間: 2025-3-26 19:48
Krishna Pusuluri,Huiwen Ju,Andrey ShilnikovThe operating principle of the CR system is best clarified by reference to the four-quadrant display shown in Fig. 4.1.作者: mucous-membrane 時(shí)間: 2025-3-26 21:10 作者: 異端邪說下 時(shí)間: 2025-3-27 03:35
Image processingThe operating principle of the CR system is best clarified by reference to the four-quadrant display shown in Fig. 4.1.作者: correspondent 時(shí)間: 2025-3-27 05:47
Excretory urographyThis chapter reports our experience with computed radiography (CR) applied to excretory urography, where CR is useful in decreasing the exposure dose. This method has also been found to allow analysis of renal parenchymatous lesions in excretory urog-raphy when used for tomography in the nephrogram phase.作者: 取回 時(shí)間: 2025-3-27 11:37
An introduction to clinical utilization of CRgital radiograms with high spatial and high density resolution to be obtained at a relatively low X-ray dose. In order to make this new technique better be utilized, certain problems associated with it will be discussed here.作者: intellect 時(shí)間: 2025-3-27 14:04 作者: 騙子 時(shí)間: 2025-3-27 20:47
Intra-arterial digital subtraction angiographybtained with the conventional screen/film system. CR is thus recognized as a new system which can deal with many angiograms. This chapter presents clinical cases of intra-arterial DSA using CR and the advantages and problems of this system are discussed.作者: 易于交談 時(shí)間: 2025-3-27 22:35 作者: 遠(yuǎn)地點(diǎn) 時(shí)間: 2025-3-28 02:08 作者: Graves’-disease 時(shí)間: 2025-3-28 09:38 作者: 激怒 時(shí)間: 2025-3-28 11:45 作者: 愛哭 時(shí)間: 2025-3-28 16:04 作者: 掃興 時(shí)間: 2025-3-28 22:47
Rudolf Friedrich,Joachim Peinke,Oliver Kamps from a CRT monitor by an optical system like a multiformat camera and display as a film image for reading; (3) direct recording on a film from image signals by a laser printer to produce a film image for reading.作者: Enliven 時(shí)間: 2025-3-29 02:15 作者: Root494 時(shí)間: 2025-3-29 03:44
Transition to Turbulence in a Fluid Flowict the fine detail of microcalcifications in the breast compared with the nonscreen technique. It seems that this problem comes from the limitation of the spatial resolution with the present equipment.作者: GLIDE 時(shí)間: 2025-3-29 07:53
Cooperative Effects in Fluid Problemsgnition of lesions upon double-contrast radiography of the anterior wall or with the oblique projection. CR may also allow a reduction in the exposure dose to about one-tenth of the usual amount. This would be further reduced if the examiner could obtain better adhesion of contrast medium to the gastric wall.作者: Anthropoid 時(shí)間: 2025-3-29 12:36
Instabilities in Fluid Dynamicsolution, this new technique does not have sufficient capability to visualize bone microstructures. In this chapter, the advantages and disadvantages of the application of CR to bone and joint diseases will be discussed.作者: 一美元 時(shí)間: 2025-3-29 18:45
Imaging plate a polyester film. The phosphor layer has the function of recording an X-ray image. The photostimulable phosphor is a special luminescent material which stores X-ray energy and emits light proportional to the stored X-ray energy when stimulation energy such as visible light is irradiated to it.作者: Entrancing 時(shí)間: 2025-3-29 21:55
Image recording from a CRT monitor by an optical system like a multiformat camera and display as a film image for reading; (3) direct recording on a film from image signals by a laser printer to produce a film image for reading.作者: 粗魯性質(zhì) 時(shí)間: 2025-3-30 01:14 作者: 發(fā)酵劑 時(shí)間: 2025-3-30 05:11 作者: Androgen 時(shí)間: 2025-3-30 09:35 作者: frozen-shoulder 時(shí)間: 2025-3-30 14:59 作者: 確定方向 時(shí)間: 2025-3-30 19:33
Intravenous digital subtraction angiography imaging intensifier (II). Since the DF system was originally developed for angiography, there are naturally fundamental differences between the two systems. In routine angiography, however, the two systems have already been widely used, currently for the same purposes in most cases. This chapter includes a comparison of the two systems.作者: 最高峰 時(shí)間: 2025-3-30 22:31
Mathematical Aspects of Dynamic Systems,id progress in technology; these systems include X-ray CT, ultrasonic (US), nuclear magnetic resonance (MRI), and positron CT. X-ray CT and US, in particular, are extensively distributed and in common use today.作者: 不理會(huì) 時(shí)間: 2025-3-31 01:05 作者: 首創(chuàng)精神 時(shí)間: 2025-3-31 06:26
Book 1987in the near future. This book is the first textbook on computed radiography written by Japanese authors and describes basic technologies and clinical results obtained at various hospitals. There are more than 60 CR systems working in clinical environments in Japan. However, as yet there are not so m作者: 爭(zhēng)吵加 時(shí)間: 2025-3-31 09:22
