摘要:
Disclosed are contrast agents of the formula or a pharmaceutically acceptable salt thereof, contained in aqueous compositions and methods for their use in diagnostic radiology of the gastrointestinal tract wherein
Z = H, halo, C 1 -C 20 alkyl, cycloalkyl, lower alkoxy, alkoxycarbonyl, cyano, where the alkyl and cycloalkyl groups can be substituted with halogen or halo-lower-alkyl groups; R = C l -C 25 alkyl, cycloalkyl, or halo-lower-alkyl, optionally substituted with halo, fluoro-lower-alkyl, aryl, lower-alkoxy, hydroxy, carboxy, lower-alkoxy carbonyl or lower-alkoxy-carbonyloxy, (CR 1 R 2 ) ρ -(CR 3 = CR 4 ) mQ , or (CR 1 R 2 )p-C=C-Q; Ri, R 2 , R 3 and R 4 are independently H, lower-alkyl, optionally substituted with halo; x is 1-4; n is 1-5; m is 1-15; p is 1-20; and Q is H, lower-alkyl, lower-alkenyl, lower-alkynyl, lower-alkylene, aryl, or aryl-lower alkyl. in an aqueous, pharmaceutically acceptable carrier.
- ein Verfahren zur Herstellung von als schattengebende Komponente in Röntgenkonstrastmitteln geeignetes Bariumsulfat mit erhöhter Fliessfähigkeit und Dichte, - das durch dieses Verfahren erhaltene gesinterte Bariumsulfat und - daraus hergestellte Röntgenkontrastmittel hoher Fliessfähigkeit und Schattendichte.
Bariumsulfat geeignet zur Herstellung von Röntgenkontrastmitteln mit erhöhter Fliessfähigkeit und Dichte wird durch eine Hochtemperaturbehandlung bei 700 - 1200 °C, vorzugsweise 800 - 1000 °C, erhalten. Das derart gesinterte Bariumsulfat zeichnet sich durch eine Schüttdichte von 2.5 bis 3 g/ml und seine rein wässerige Suspension, enthaltend 200 g Bariumsulfat pro 100 ml; durch eine Viskosität von höchstens 1000 mPas aus. Rontgenkontrastmittel enthaltend mindestens 200 g gesintertes Bariumsulfat pro 100 ml, eignen sich hervorragend für die schwierige Doppelkontrastdarstellung des Magens bzw. der Magenschleimhaut.
摘要:
Ferritin or iron-based image enhancement agents identify target tissue for treatment or ablation and are heated by microwave absorption. Microwave heat substrates enhance microwave hyperthermal ablation treatment, and may be percutaneously delivered and imaged by x-ray CT during placement of the microwave treatment antenna, allowing more precise positioning and more complete ablation of a tumor site. One method of treating a target tissue uses image-guided delivery of a heat substrate with a reverse-phase change polymer, and may apply energy to fix a mass of the material in the tissue. The fixed polymer may increase hyperthermia, form a thermal boundary, or blockade a vessel or passage so as to reduce or prevent undesired conductive cooling by contiguous tissue, or may deliver a localized treatment drug at the site, upon heating or as it degrades over time.
摘要:
An edible composition of matter having an apparent viscosity of from about 150 cP to about 2000 cP at about 30 s-1; a yield stress of from 0 Pa to about 20 Pa at 1 s-1; and a flow index of from about 0.2 to about 0.6. The composition may include an imaging agent. The compositions are useful for providing sustenance to dysphagic subjects and for evalualuating dysphagia.
摘要:
The present invention relates to thickened beverage compositions. More particularly the invention relates to beverage compositions thickened for the management of dysphagia. More particularly this invention relates to the production of thickened beverages by a dispensing machine that is also capable of dispensing non-thickened beverages.
摘要:
The present invention relates to a process for the manufacture of optionally doped nanoparticulate metal sulfate nanoparticles wherein the metal is selected from polyvalent metals or monovalent transition metals, said process comprising the step of heating a reaction mixture comprising a) a polar organic solvent comprising at least two hydroxy groups or a polar organic solvent comprising at least one sulfoxide group, b) a source of a polyvalent metal or monovalent transition metal, a sulfate source, and optionally a dopant metal source, and c) a base selected from i) bases having an aromatic N-containing heterocycle with the exception of imidazole ii) bases having an aliphatic N-containing heterocycle, iii) aliphatic hydroxy-substituted amines iv) aliphatic polyamines v) aromatic amines vi) ammonia and ammonia-releasing compounds vii)metal hydroxides, and metal sulfates obtainable by this method. The resulting sulfate nanoparticle show a high degree of whiteness and an excellent dispersibility in water and according to preferred embodiments also in methanol.