Retractile mesenteritis: small-bowel radiography, CT, and MR imaging.
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Aged↗
Biomedical subjects
N Ichinari
Publications and source records attributed to N Ichinari.
[Construction of an MRI reporting system using the Internet].
Out university hospital, includes a LAN (Local Area Network) and uses network services such as WWW(World Wide Web). We have constructed an MRI diagnostic reporting system on the Internet in which interactive date management was established on WWW by using CGI (Common Gateway Interface) software. Linking database information such as MRI reports with WWW browsers using by CGI provides easy data access to the database and offers hypertext and searching. This system suggests the possibility of creating a cheaper and more flexible network using Internet technology.
Computer Communication Networks↗
Retroperitoneal foregut cyst.
A foregut cyst is formed as a result of abnormal budding and pinching of the tracheobronchial tree when bronchial buds develop to form the primitive respiratory tree. Foregut cysts are clinically classified as bronchogenic, esophageal, enterogastric, or ciliated hepatic. We present a foregut cyst that occurred in the retroperitoneum and was difficult to distinguish from other retroperitoneal cystic mass lesions. Magnetic resonance imaging was useful in revealing the cyst's continuity to adjacent organs.
Aged↗
Focal fatty infiltration in the posterior aspect of hepatic segment IV associated with aberrant pancreaticoduodenal venous drainage.
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Biopsy, Needle↗
Sclerosing hemangioma of the lung: MR findings and correlation with pathological features.
Two sclerosing hemangiomas of the lung had mixed areas of high and low signal intensity on both T1- and T2-weighted images and were totally enhanced on postcontrast T1-weighted images. The T1 high signal intensity areas corresponded to those including abundant clear cells, and the T2-weighted low signal intensity areas corresponded to the fibrotic or hemorrhagic areas in the tumors. The T2 high signal intensity areas with remarkable contrast enhancement corresponded to the hemangiomatous parts of the tumors.
Adult↗
HASTE MR cholangiopancreatography in the evaluation of intraductal papillary-mucinous tumors of the pancreas.
PURPOSE: The aim of this study was to determine the usefulness of MR cholangiopancreatography (MRCP) of intraductal papillary-mucinous tumors. METHOD: Thirteen patients with intraductal papillary-mucinous tumors were examined by breath-hold MRCP using a half-Fourier acquisition single-shot turbo spin echo (HASTE) sequence with a body phased-array coil. RESULTS: Endoscopic retrograde cholangiopancreatography (ERCP) and MRCP completely imaged the entire main pancreatic duct in 12 and in all 13 patients, respectively. ERCP demonstrated the whole opacification of the cystic lesion in only one patient. MRCP depicted the whole of the cystic lesion in all 11 patients who had cystic lesions. ERCP and MRCP source images depicted a communicating duct between the main pancreatic duct and the cystic lesion in 8 and in all 11 patients, respectively. ERCP depicted papillary projections in the main pancreatic ducts in two patients. MRCP source images depicted papillary projections in the main pancreatic ducts or cystic lesions in five patients. CONCLUSION: MRCP may be more useful to reveal the main pancreatic duct, cystic lesion, communicating duct between the main pancreatic duct and cystic lesion, and papillary projections than ERCP in patients with intraductal papillary-mucinous tumors of the pancreas.
Adenocarcinoma, Mucinous↗
MR imaging during arterial-portography (MR-AP) in the detection of hepatic tumor: comparison with CT-AP.
This study was undertaken to compare the detection rate of hepatic space occupying lesion (SOL)s between computed tomography during arterial portography (CT-AP) and magnetic resonance imaging during arterial portography (MR-AP) and the differences in time intensity curve on MR-AP between HCC, metastatic tumor, FNH, and hemangioma. We performed CT-AP and MR-AP in 17 patients including 14 cases of HCC and one each of metastasis, FNH, and hemangioma. MR-AP was performed by Turbo-FLASH sequence. There was no statistically significant difference between CT-AP and MR-AP in detecting satellite lesions in terms of smallest diameter and number of flow defects (p > 0.05). Hemangioma showed rapid enhancement after the first pass and, consequently, the same enhancement as the hepatic parenchyma. MR-AP was comparable to CT-AP in the detection of hepatic SOLs. Hemangioma showed an enhancement pattern different from those of HCC, metastatic tumor, and FNH, which showed patterns similar to each other.
Carcinoma, Hepatocellular↗