22 KB114 KB15 KB199220252002Aschauer, Manuela AdelindeEbner, FranzStollberger, Rudolfštevilka:2letnik:366 stranistr. 103-108ISSN:1318-2099COBISSID:15184089URN:URN:NBN:SI:doc-3G5ZV8P0enAssociation of Radiology and OncologyRadiology and oncology (Ljubljana)angiografijaAortaarterijeContrast mediadiagnostikaGadolinijGadoliniumKontrastna sredstvaMagnetic resonance imagingMagnetna resonancaožiljePeriferne žile, bolezniPeripheral vascular diseasesPljučna arterijaPulmonary arteryVeinsVeneAdvances in contrast-enhanced MR-angiography|Introduction. Gadolinium(Gd)-enhanced three-dimensional (3D) magnetic resonance angiography (MRA) is a newer technique that provides high resolutiondata rapidly for depiction of both arteries and veins throughout thebody. Conclusions. Contrast-enhanced 3D MRA represents a milestone for non-invasive vascular imaging. While its clinical utility has already been established in many vascular territories, the continuos development of hard- and software, as well as of new contrast agents, will likely result in a further widening in the spectrum of indications. Delayed 3D acquisitions of the kidney, ureters and bladder can be performed routinely to demonstrate and characterise obstruction, delayed function, filling defects and masses. Some patients are not candidates for MRA because of pacemakers, some kind of stentsor immobilisation coils that cause considerable artifacts and obscure important structures. The resolution of CE-3D-MRA is lower compared with that of conventional angiography and visualisation of small peripheral arteries is limitedIzhodišča. Z gadolinium(Gd)-ojačana tri-dimenzionalna (3D) magnetno resonančnaangiografija (MRA) je novejša tehnika, s katero hitro dobimo podatkevisoke ločljivosti tako za prikaz arterij kot ven v celem telesu. Zaključki. S kontrastom ojačana 3D MRA predstavlja mejnik za neinvaziven slikovni prikaz žilja. Metem, ko je bila klinična uporabnost 3D MRA že dokazana v številnih področjih žilne diagnostike, bo stalen razvoj strojne in programske opreme, kakor tudi novih kontrastnih sredstev pripeljal do nadaljnega širjenja indikacij. Rutinsko lahko opravljamo 3D prikaz ledvic, ureterjev in mehurja, s čimer lahko prikažemo in ocenimo zaporo, zapoznelo funkcijo, polnitvene defekte in mase v predelu ledvic. Bolniki z vzpodbujevalniki srca, niso primerni za preiskavo z MRA, nekatere vrste endoprotez in imobilizacijskih sredstev pa povzročajo pomembne artefakte, ki skrijejo pomembne. Ločljivost CE-3D-MRA je nižja v primerjavi z konvencionalnoangiografijo, omejena pa je tudi ločljivost majhnih perifernih arterijTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaDruštvo radiologije in onkologije