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Biomedical subjects

H Otsuji

Publications and source records attributed to H Otsuji.

At least 37 records · Page 2Linked to original sources
PubMed1989

[Diagnostic value of the cortico-medullary contrast on dynamic CT and MRI in chronic renal parenchymal diseases].

Correlation between cortico-medullary contrast (CMC) and dynamic CT or MRI for chronic renal parenchymal diseases was evaluated compared with serum creatinine level (Cr). Forty two kidneys of 23 patients were chronic glomerulonephritis (12), chronic pyelonephritis (12), chronic renal failure (4), and other diseases (14). Thirty two kidneys with low Cr (under 1.6) were demonstrated the good CMC by dynamic CT and T1-weighted image (IR) of 0.5 T. Six with middle of Cr (between 1.6 and 3.0) were showed a decrease in CMC and four with high Cr (over 3.0) had no CMC. CMC correlated with Cr.

Chronic Disease↗
PubMed1986

Pulmonary asbestosis: CT study of subpleural curvilinear shadow. Work in progress.

High-resolution computed tomographic scans of 19 patients with pulmonary asbestosis revealed a subpleural curvilinear shadow (SCLS) parallel to the inner chest wall in the lungs of 15 (78.9%) patients. Most (46.7%) SCLS measured greater than 5 cm but less than 10 cm in length and occurred less than 1 cm from the inner chest wall in all cases. SCLS was distributed mainly in the lower lobe in patients with mild pulmonary fibrosis and in segments where fibrosis was mild in patients with honeycomb shadows. This may reflect initiation of pulmonary fibrosis leading to the formation of a honeycomb shadow. Radiologic-pathologic correlation, achieved in one postmortem specimen, seemed to indicate that SCLS was associated with the initial change of fibrosing bronchioloalveolitis, which is characteristic of pulmonary asbestosis.

Asbestosis↗
PubMed1983

Evaluation of arterial embolization therapy for hepatocellular carcinoma by computed tomography.

Changes in tumor area and the attenuation value determined from computed tomography (CT) slice section of the tumor at its maximum size were investigated in 18 patients with hepatocellular carcinoma who were studied by CT after arterial embolization therapy. The tumor area was reduced in all cases after embolization therapy. Greater than 50% reduction of the tumor area occurred during the follow-up period in 13 cases (87%). In cases evaluated by follow-up CT, the relative attenuation value of tumor to nontumor regions decreased during the initial stage after embolization therapy, but showed a tendency towards greater elevation than in the initial stage, despite tumor reduction. This change in the attenuation value was considered to reflect necrosis and shrinkage of the tumor after embolization therapy. The absence of such changes in nontumor regions supports the use of arterial embolization therapy as an effective, conservative treatment for hepatocellular carcinoma. Follow-up examination by CT of hepatocellular carcinoma after embolization therapy contributes to the post-therapeutic evaluation of tumors and to the determination of the appropriate time for reembolization therapy.

Adult↗