[THe differentiation between benign and malignant liver lesions by unenhanced MRI].
The aim of the study was to establish qualitative criteria for differentiating between malignant and benign focal lesions of the liver using unenhanced MRT at 0.5 Tesla.


METHODS
72 patients with 103 focal liver lesions were examined with T1 and T2 weighted SE sequences. The images were examined by three radiologists according to qualitative criteria (homogeneity, form and signal of the lesions compared with liver, spleen and muscle).


RESULTS
The most specific sign applying to 90% of malignant lesions were diffuse or irregular contours on T2 weighted sequences; this had a sensitivity of 43%. For all other features, specificity for malignancy was less than 67%.


CONCLUSIONS
Using these sequences and criteria it is not possible to distinguish between malignant and benign lesions of the liver with sufficient accuracy.
Grebe
P
P
Klinik und Poliklinik für Radiologie, Universitätskliniken Mainz.
Schild
H
H
Kreitner
K F
KF
Ferber
A
A
D003937:Diagnosis, Differential; D006801:Humans; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000175:diagnosis*; D016015:Logistic Models; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D009132:Muscles / Q000473:pathology; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013154:Spleen / Q000473:pathology
Differenzierung zwischen benignen und malignen Leberläsionen mit der Nativ-MRT.