[Gd-DTPA enhanced multi-shot echo-planar MRI: improvement of contrast between metastatic liver cancer and liver parenchyma].
In six patients with metastatic liver cancer, spin-echo multi-shot echo-planar MR imaging 8/2000/80/1 (shot/TR/TE/excitation) of the liver was performed before and 30, 60, 90 and 120 sec after the intravenous injection of Gd-DTPA. Signal-to-noise ratios (SNR) of the liver tumor and liver parenchyma were measured in each phase. The contrast-to-noise ratios (CNR) between the tumor and liver parenchyma were also calculated. While the SNR of the tumor did not change after the injection of Gd-DTPA, the SNR of the liver parenchyma decreased and the CNR between the tumor and liver parenchyma increased.
Kim
T
T
Department of Radiology, Osaka University School of Medicine.
Murakami
T
T
Takahashi
S
S
Okada
A
A
Hori
M
M
Nobuhiro
M
M
Tomoda
K
K
Narumi
Y
Y
Oi
H
H
Nakamura
H
H
D000328:Adult; D003287:Contrast Media; D017352:Echo-Planar Imaging; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008099:Liver / Q000473:pathology*; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000556:secondary; D008297:Male; D008875:Middle Aged
D003287:Contrast Media; D019786:Gadolinium DTPA