20.500.12556/DiRROS-17953 Magnetic resonance of cardiac tumors and masses [Magnetna resonanca tumorjev in netumorskih mas v srcu] Cardiac tumors are rare and should be differentiated from nontumoral cardiac masses because of different therapeutic approach. For this purpose, spin-echo (SE) technique and gradient-echo (GE) technique are used in magnetic resonanceimaging (MR). The first provides anatomic evaluation of the heart andtissue characterization, while the second provides dynamic information on the blood flow and heart contraction. Cardiac myxoma is differential from thrombus by paramagnetic contrast agent administration. Their mobility is evaluated with GE technique. Lipomas and subacute hemorrhage have the same, high signal intensity on T1-weighted spin-echo image, therefore, the fat suppression technique is appropriate to recognize them. MR is used in evaluating the response of the malignant tumor to chemotherapy. GE MR is useful to differentiate between the thrombus and slow-flowing blood; the administration of gadolinium helps to distinguish the thrombus from the tumor.In patients suspected of having a cardiac tumor, echocardiography is thefirst method of choice. MR is used to confirm the findigs of echocardiography, to determine precisely the tumor location, extent, and its tissue characterization, to follow up patients under treatment, and to detect early tumor recurrence. Tumorji srca so redki in jih je potrebno ločiti of netumorskih mas v srcu, sajje zdravljenje različno. V ta namen se pri slikanju z magnetno resonanco (MR) uporabljata spin-echo (SE) in gradient-echo (GE) tehnika. Prva omogoča prikaz anatomije srca in ugotavljanje sestabe tkiva, druga nudi informacije o dinamiki - pretoku krvi in srčnih kontrakcijah. Miksom srca ločimo od tromba spomočjo intravenske aplikacije paramegnetnega kontrastnega sredstva. Z GE tehniko ocenjujemo njegovo premičnost. Lipom in subakutna krvavitev imata enako, visoko intenziteto signala na T1-uravnoteženi sliki, zato za njuno razpoznavo uporabimo tehniko maščobne supresije. MR uporabljamo za oceno reakcije malignega tumorja na kemoterapijo. GE MR je koristna pri ločevanju tromba in počasnega pretoka, intravenska aplikacija gadolinija pa za ločitev tromba od tumorja. Ehokardiografija je prva metoda izbire pri bolnikih s sumomna tumor v srcu. MR uporabimo za potrditev ehokardiografskega izvida, za natančnejšo opredelitev lokalizacije in razširjenosti tumorja, za ugotavljanjesestave tumorskega tkiva, za spremljanje bolnikov med zdravljenjemin za zgodnje odkrivanje morebitne ponovne tumorske rasti. true false true Slovenian Medical Association - Slovenian Association of Radiology, Nuclear Medicine Society, Slovenian Society far Radiotherapy and Oncology, and Slovenian Cancer Society Ljubljana Angleški jezik Slovenski jezik by Authors Neznano 2024-01-24 14:24:24 2024-01-24 14:24:25 2024-01-25 03:36:56 0000-00-00 00:00:00 2000 0 0 BSDOCID53026; str. 151-158 št. 2 Letn. 34 2000 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2000-01-01 616.1 1318-2099 11711193 RAZ_Berden_Pavel_2000.pdf RAZ_Berden_Pavel_2000.pdf 1 762E9BAD0C380B935E1EE15718CF8CA7 6377597122cb3c075819baeefa8230708d8efd36111dbe732304d624aaedd380 12885663-babc-11ee-b0d4-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=24345 Onkološki inštitut Ljubljana 0 0 0