[Evaluation of multislice dynamic MR imaging of the whole liver].
In 47 patients with liver cirrhosis, we performed dynamic MRI with a multisection FLASH technique that enabled us to obtain 13 T 1-weighted images of the entire liver within a single breath hold. Computed tomographic arterial portography (CTAP), US, CT, angiography (AOG) and MRI (spin echo [SE] and dynamic MRI) were performed in all 47 patients. Except for cyst, hemangioma and metastatic tumor, 104 focal nodules less than 3 cm in diameter were detected. These 104 focal lesions were divided into three groups according to the pattern of CTAP: 69 portal supply negative, 11 portal supply decreased, and 24 portal supply normal. In the portal supply negative group, 63 lesions (91%) were detected by dynamic MRI, which was superior to other modalities (US 77%, CT 41%, AOG 70%, MRI-SE 61%). The superiority of dynamic MRI resulted from its excellent ability to detect liver lesions less than 1 cm in diameter. We confirmed histologically that dynamic MRI had almost the same ability to detect hepatocellular carcinoma (HCC) as CTAP. Dynamic MRI should be clinically useful as a noninvasive examination for the detection of HCC.
Inoue
E
E
Department of Diagnostic Radiology, Center for Adult Diseases, Osaka.
Kuroda
C
C
Fujita
M
M
Hosomi
N
N
Kadota
T
T
Narumi
Y
Y
Kuriyama
K
K
Yoshioka
H
H
Kasugai
H
H
Sasaki
Y
Y
D006528:Carcinoma, Hepatocellular / Q000175:diagnosis*; D006801:Humans; D008099:Liver / Q000473:pathology*; D008113:Liver Neoplasms / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D011172:Portography; D011237:Predictive Value of Tests; D014057:Tomography, X-Ray Computed