[Differential diagnosis by MRT of cavernous hemangiomas and malignant tumors of the liver--advantages of the multi-echo technic].
With a retrospective analysis of images from 39 patients with histologically proven liver tumours we tried to determine the best MRT-parameter for detection of cavernous hemangioma (n = 19) and its differentiation from malignoma (metastases n = 17, HCC n = 5). The best differentiation was achieved with the contrast-to-noise ratio between lesion and liver in multi-echo-images with TR/TE = 2,000/210 ms and a definite limit with an accuracy of 84% for hemangioma and 91% for malignoma. The respective intensity ratios (lesion/liver) were 95% and 77%. T2-relation times and the T1- and T2-ratios were also calculated. In contrary to the literature we think that these parameters are not sufficiently discriminating.
Koch
M
M
Institut für Röntgendiagnostik des Bereichs Medizin (Charité), Humboldt-Universität, Berlin, DDR.
Lüning
M
M
Mühler
A
A
Simon
C
C
D000328:Adult; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006392:Hemangioma, Cavernous / Q000175:diagnosis*; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000556:secondary; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged
MRT-Differentialdiagnose von kavernösen Hämangiomen und Malignomen der Leber--Vorteile der Multi-Echo-Technik.