作者: mortuary 時(shí)間: 2025-3-21 20:40
General Principles of X-ray Contrast Media,ic number of the atoms present in the molecules, on the concentration of these molecules and on the thickness of the irradiated slice. In the case of chest X-rays, the bones, the airiferous lungs, the heart and other tissues provide adequate natural contrast. In other cases, however — e.g. in the ab作者: Nonflammable 時(shí)間: 2025-3-22 03:31 作者: RLS898 時(shí)間: 2025-3-22 06:25
Interactions,tematically in the laboratory of Dr. Junge, Germany. For this purpose, reference sera (normal and pathological values) were mixed with up to 20 vol.% CM solution and urine with up to 50% CM solution. Higher concentrations than this are unlikely to occur even a very short time after a CM injection.作者: 殺蟲(chóng)劑 時(shí)間: 2025-3-22 08:56 作者: MARS 時(shí)間: 2025-3-22 16:51 作者: MARS 時(shí)間: 2025-3-22 19:27 作者: hair-bulb 時(shí)間: 2025-3-23 00:56
https://doi.org/10.1007/978-3-642-01457-4tematically in the laboratory of Dr. Junge, Germany. For this purpose, reference sera (normal and pathological values) were mixed with up to 20 vol.% CM solution and urine with up to 50% CM solution. Higher concentrations than this are unlikely to occur even a very short time after a CM injection.作者: 松馳 時(shí)間: 2025-3-23 03:53 作者: SOW 時(shí)間: 2025-3-23 09:34
http://image.papertrans.cn/c/image/237145.jpg作者: Allergic 時(shí)間: 2025-3-23 13:17 作者: 嘲笑 時(shí)間: 2025-3-23 17:00 作者: 國(guó)家明智 時(shí)間: 2025-3-23 19:54
The direct carbon dioxide effect on plants,Optimal use of CM in radiology requires a knowledge of the nature and relevant properties of the available substances. This chapter describes the properties of current and newly developed contrast-giving substances which have an influence on their behavior in the organism, their side effects and their practical utility.作者: 泰然自若 時(shí)間: 2025-3-24 01:51
https://doi.org/10.1007/978-3-642-01259-4The most important physicochemical properties of water-soluble, iodinated CM are their solubility, the viscosity and osmolality of the solutions, the lipophilic or hydrophilic properties of the iodine-containing molecule and the electrical charge (table 4). In practice, these properties have the following significance:作者: 招待 時(shí)間: 2025-3-24 06:09
Erhard Cramer,Johanna Ne?lehováThe object of CM is to help to visualize certain structures in the organism or also to provide information about organ functions. An important prerequisite for a CM is low toxicity and safe use, since CM are often injected in high dosages and, for certain purposes, very quickly.作者: exquisite 時(shí)間: 2025-3-24 08:34
https://doi.org/10.1007/978-3-642-02431-3The development of CM takes place by large under the aspect of further improvement of tolerance and the opening-up of new diagnostic possibilities by means of different pharmacokinetics. In this connection, new technical developments also influence the use of and need for CM with special properties (table 39).作者: harbinger 時(shí)間: 2025-3-24 12:45 作者: 和平主義 時(shí)間: 2025-3-24 18:28 作者: GRE 時(shí)間: 2025-3-24 21:57
Risks of Contrast Media Use,The object of CM is to help to visualize certain structures in the organism or also to provide information about organ functions. An important prerequisite for a CM is low toxicity and safe use, since CM are often injected in high dosages and, for certain purposes, very quickly.作者: 分散 時(shí)間: 2025-3-25 01:22
Further Development of Contrast Media,The development of CM takes place by large under the aspect of further improvement of tolerance and the opening-up of new diagnostic possibilities by means of different pharmacokinetics. In this connection, new technical developments also influence the use of and need for CM with special properties (table 39).作者: scrutiny 時(shí)間: 2025-3-25 03:34 作者: 臭了生氣 時(shí)間: 2025-3-25 09:58 作者: Recessive 時(shí)間: 2025-3-25 12:13
Mikhail Dimentberg,Oleg Gaidai,Arvid Naess on X-ray and can only be enhanced through the use of contrast media. As a result, much effort has been made to better adapt contrast media and the techniques of their administration to diagnostic requirements and to develop better-tolerated products. At the same time, the technique continued to dev作者: Moderate 時(shí)間: 2025-3-25 17:39 作者: 大氣層 時(shí)間: 2025-3-25 22:12
Dimitri Plemenos,Georgios Miaouliss to opacification in a functional manner. In the latter case, the actual function of organs, such as the kidneys and liver,namely the elimination of metabolic end-products or exogenous substances, is exploited to demonstrate the organ itself or in the draining body cavities. As exogenous substances作者: crumble 時(shí)間: 2025-3-26 00:19
https://doi.org/10.1007/978-3-642-01457-4tematically in the laboratory of Dr. Junge, Germany. For this purpose, reference sera (normal and pathological values) were mixed with up to 20 vol.% CM solution and urine with up to 50% CM solution. Higher concentrations than this are unlikely to occur even a very short time after a CM injection.作者: Mediocre 時(shí)間: 2025-3-26 05:45 作者: Frisky 時(shí)間: 2025-3-26 08:52
Ansprechend verpacken: Das Thema Schrift,It is easy to calculate the quantity of a contrast medium in the path of the rays, or the contrast medium concentration in a given volume (CT) from the ray absorption, if the absorption in the same region is known before contrast medium administration.作者: 替代品 時(shí)間: 2025-3-26 13:22 作者: 消息靈通 時(shí)間: 2025-3-26 17:37
ure and properties of X-ray contrast media Barium sulfate 13 Water-soluble contrast media 14 Chemical structure, biological behavior and use 14 ? Conventional, highly hypertonic contrast media 15 ? Low-osmolar contrast media, especially non ionic substances 15 ? Nonionic contrast media 16 Osmolality作者: Brittle 時(shí)間: 2025-3-26 22:26
https://doi.org/10.1007/978-3-642-00881-8chest X-rays, the bones, the airiferous lungs, the heart and other tissues provide adequate natural contrast. In other cases, however — e.g. in the abdomen —, the composition of the organs is so similar that the differences in absorption are too small; they are radiographically anonymous and must be made visible by additional measures (fig. 1).作者: PURG 時(shí)間: 2025-3-27 02:35
Ansprechend verpacken: Das Thema Schrift,tation of the speed of movement and direction of reflected struc-tures (Doppler) using the altered frequency of the re-flected pulse to many other parameters resulting from the interaction of the pulse and the living organism.作者: Immunotherapy 時(shí)間: 2025-3-27 07:29 作者: 傻瓜 時(shí)間: 2025-3-27 10:49
Special Characteristics of the Contrast Media for Ultrasound,tation of the speed of movement and direction of reflected struc-tures (Doppler) using the altered frequency of the re-flected pulse to many other parameters resulting from the interaction of the pulse and the living organism.作者: Supplement 時(shí)間: 2025-3-27 16:38
Dimitri Plemenos,Georgios Miaoulis, the CM are eliminated from the organism via the kidneys and urine (urography) or via the liver and bile (cholegraphy) depending on their chemical structure and properties. As a consequence, parenchymal structures or elimination pathways become visible on the X-ray film (table 7a–c).作者: medieval 時(shí)間: 2025-3-27 21:33
Erhard Cramer,Johanna Ne?lehováare very rare particularly with the new, nonionic preparations; however, the need to be prepared for their treatment should never be neglected. One easily overlooked point to note is the expiry date on the preparations to be used for the treatment of such reactions.作者: monogamy 時(shí)間: 2025-3-27 22:33 作者: craving 時(shí)間: 2025-3-28 03:10 作者: 赤字 時(shí)間: 2025-3-28 06:39
Book 19991st editionoperties of X-ray contrast media Barium sulfate 13 Water-soluble contrast media 14 Chemical structure, biological behavior and use 14 ? Conventional, highly hypertonic contrast media 15 ? Low-osmolar contrast media, especially non ionic substances 15 ? Nonionic contrast media 16 Osmolality and side 作者: osculate 時(shí)間: 2025-3-28 10:28 作者: 尖酸一點(diǎn) 時(shí)間: 2025-3-28 18:07 作者: ineluctable 時(shí)間: 2025-3-28 20:50
Mikhail Dimentberg,Oleg Gaidai,Arvid Naessill also undoubtedly increase the diagnostic potential of ultrasound since these substances which are introduced from outside the body make it possible to visualize functions which otherwise could not be seen. Contrast enhancement also improves the quality of the morphological information.作者: 忍受 時(shí)間: 2025-3-29 01:38 作者: 蕁麻 時(shí)間: 2025-3-29 04:00
Book 1985ody species again emphasized somatic embryogenesis as a means of rapid propagation. This volume emphasizes tissue culture of forest trees. All of these areas, we feel, are breakthrough areas in which significant progress is expected in the next few years.作者: visceral-fat 時(shí)間: 2025-3-29 09:27 作者: RALES 時(shí)間: 2025-3-29 12:30 作者: tattle 時(shí)間: 2025-3-29 18:06
