[Assessment of intra and extrahepatic perfusion during hepatic artery infusion chemotherapy using slow-injected gadolinium-enhanced MR imaging through implanted catheter-port-system].
Twenty-four studies of intra-arterially slow-injected gadolinium-enhanced MR imaging through an implanted catheter-port system (reservoir-MR) were carried out in 15 patients with liver tumor. The flow rate of gadolinium injection was 0.1 ml/sec and a total of 3 mL was injected. Six consecutive phases, each with an acquisition time of 14 seconds, were obtained every 30 seconds. In all studies, the signal intensity of the drug delivery portion became very high. Twenty-three of 24 studies showed intrahepatic perfusion in the first phase. The hepatic vein was enhanced at the first phase in 10 and the second phase in 14. The abdominal aorta was enhanced at the second phase in all 24 studies. The portal vein was enhanced at the first phase in 4, the second phase in 13, and the third phase in 7 studies. Both intra- and extrahepatic perfusion were more clearly demonstrated by reservoir-MRI than by digital subtraction angiography through an implanted catheter-port system (reservoir-DSA); however, morphological changes in the hepatic artery were better demonstrated by reservoir-DSA than by reservoir-MRI.
Obuchi
M
M
Department of Radiology, Showa University Fujigaoka Hospital.
Sugimoto
H
H
Honda
M
M
Takizawa
K
K
Saeki
M
M
Kubota
H
H
Ichikawa
T
T
Satou
K
K
Yamamoto
W
W
D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000493:pharmacokinetics*; D005260:Female; D005682:Gadolinium; D006499:Hepatic Artery; D006801:Humans; D015918:Infusion Pumps, Implantable; D007261:Infusions, Intra-Arterial; D008099:Liver / Q000473:pathology*; D008113:Liver Neoplasms / Q000188:drug therapy* / Q000378:metabolism; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010477:Perfusion; D019047:Phantoms, Imaging
D000970:Antineoplastic Agents; D005682:Gadolinium