[Detectability of focal liver lesions: comparison of MRI at 1.5 T and dynamic spiral CT].
OBJECTIVE
To compare dynamic spiral CT with MR imaging in the detectability of focal liver lesions.


METHODS
Thirty-one patients with 62 focal liver lesions (27 benign) were evaluated retrospectively. Dynamic spiral CT scans were compared with T1- and T2- weighted spin-echo (SE) sequences and in part with multi slice 2-D-FLASH and single-shot slice-selective inversion recovery Turbo-FLASH sequences at 1.5 T.


RESULTS
Dynamic spiral CT detected 89% of all lesions and was superior to each sequence alone (56-70%), and also to MRI overall (79%) regardless of lesion size, localization, and histology. However, statistical significance (p < 0.05) was only found for the differences between CT and the T1-weighted SE sequence.


CONCLUSIONS
Compared to conventional SE and GE MR imaging sequences, dynamic spiral CT scanning seems to be more effective in the detection of focal liver lesions.
Urhahn
R
R
Klinik für Radiologische Diagnostik, RWTH Aachen.
Adam
G
G
Keulers
P
P
Kilbinger
M
M
Günther
R W
RW
D018248:Adenoma, Liver Cell / Q000175:diagnosis / Q000473:pathology; D005234:Fatty Liver / Q000175:diagnosis / Q000473:pathology; D006391:Hemangioma / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D006965:Hyperplasia / Q000175:diagnosis / Q000473:pathology; D007091:Image Processing, Computer-Assisted; D008099:Liver / Q000473:pathology; D008107:Liver Diseases / Q000175:diagnosis* / Q000473:pathology; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D015588:Observer Variation; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*
Erkennbarkeit fokaler Leberläsionen: Vergleich von MRT bei 1,5 T und dynamischer Spiral-CT.