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Biomedical subjects

K Inamoto

Publications and source records attributed to K Inamoto.

43 records · Page 3Linked to original sources
PubMedDate not supplied

CT virtual endoscopy of the stomach: comparison study with gastric fiberscopy.

BACKGROUND: We evaluated the value of computed tomographic (CT) gastric virtual endoscopy (VE) by comparing it with real gastric fiberscopy (GF). METHODS: Sixty-six VE findings in 63 patients were compared with lesions found with GF. After a GF examination, the examinees were given bubble-making granules for the stomach and placed in a supine position on the CT table. Abdominal CT slices of 1 mm thickness were obtained by multidetector row CT (Siemens Sensation 16) and reconstructed to VE images with volume and surface rendering on the same day. RESULTS: VE images were successful in showing subtle alterations in the gastric mucosal folds. Gastric cancer, polyps, ulcers, erosions, and gastritis were clearly visualized. Comparison studies between VE and GF (as the gold standard) showed a sensitivity of 92.7% and a specificity of 90.9%. Original CT images were also useful in detecting lesions in other abdominal organs such as the liver, adrenal gland, and kidney. CONCLUSION: Because VE is a good noninvasive screening method, except for minimal radiation exposure, it is expected to become a new technique for stomach examinations.

Contrast Media↗
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Storage and retrieval of radiological images using a laser video disk.

A laser video disk was used for recording radiographs and CT images. Although some deterioration of the image quality was observed in the stored radiographs, this drawback was compensated for by several advantages such as easy video recording, large storage capacity, random access to a desired image, and rapid retrieval and display on the monitor. Connection to a microcomputer further widened its applications in the area of education. Overall, the laser video disk was evaluated to be of practical use.

Cost-Benefit Analysis↗
PubMedDate not supplied

Early esophageal carcinoma accompanied by esophageal varices: a case report.

This is a case report of early esophageal carcinoma accompanied by esophageal varices. Our conclusion from the experience is that when an esophagogram is performed on a patient with esophageal varices an air-contrast study in addition to an ordinary barium study should be performed as a routine examination.

Esophageal Neoplasms↗
PubMedDate not supplied

Duplication of the renal pelvis and ureter: associated anomalies and pathological conditions.

Thirty-one patients with anomalous and/or pathological conditions in the duplication of the renal pelvis and ureter were studied in order to analyze the urographic findings. A segmental defect evident in the visualization was caused by the abscess of one of the poles in the kidney. In patients with hypoplasia of one of the poles, the other normal pelvis extended to the neighboring segment, and consequently showed the same pattern as a simple pelvis and ureter on urography. The renal hypoplasia was apt to be combined with simple or ectopic ureterocele and ectopic ureteral opening. In patients with non-visualization of two pelves, hydronephrosis or renal hypoplasia was proved by other radiological modalities including computed tomography. Incidence of vesicoureteral reflux was more frequent in the ureter of the lower pelvis. Reflux was also found between the two ureters of the bifid ureter. It was concluded that these urographical findings correlated closely with pathological conditions.

Abnormalities, Multiple↗
PubMedDate not supplied

Computed tomography in the detection of small renal cell carcinoma.

Small renal cell carcinoma, less than 3 cm in diameter, was detected with computed tomography (CT) in three patients. The patients had no urological complaints and the carcinomas were discovered by chance during tests made for liver diseases. After making a comparison study between these three cases and a false-positive case, dynamic CT images were evaluated to be beneficial for detection of the tumors: dense staining in the early phase which became less dense than normal parenchyma in the late nephrogram phase.

Aged↗
PubMedDate not supplied

The use of computed tomography in fulminant hepatic failure.

We report on a case of fulminant hepatic failure induced by a hepatitis-B virus. Computed tomography (CT) was valuable in the recognition of severe liver atrophy with ascites. CT was also an efficient means for evaluating the progress of fulminant hepatic failure.

Acute Disease↗