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Biomedical subjects

S Tada

Publications and source records attributed to S Tada.

At least 415 records · Page 23Linked to original sources
PubMed1978

Angiographic measurement of posterior fossa in the Japanese.

Measurement employing the concept of the centroid is the most accurate way to study the radiographic anatomy of the posterior fossa. The normal measurements in Japanese subjects and as reported by Ross and du Boulay correlated well. We have developed a new radiographic centroid based on the morbid anatomy of the posterior fossa. The normal measurement in the Japanese by this method is also presented.

Adult↗
PubMed1978

Labelled gelfoam in transcatheter arterial embolization of renal cell carcinoma.

Six patients with renal cell carcinoma underwent transcatheter arterial embolization with Gelfoam labelled by metallic clips. The embolization procedure was more easily monitored by fluoroscopy, and the complication of peripheral embolization was prevented. Tumor regression can be evaluated by changes in the distribution of the metallic clips on plain films.

Adenocarcinoma↗
PubMed1978

Radionuclide study in pulmonary sequestration.

A radionuclide hemodynamic study was helpful in demonstrating blood supply from the aberrant artery in pulmonary sequestration. Two regions of interest were set up in corresponding lower lung fields of a patient suspected of sequestration in the left lower lobe. Following i.v. injection of Tc-99m albumin, radioactively appeared in the the left target area 8-10 sec behind that on the right. This delay is due to the systemic arterial supply to the sequestration, rather than through the pulmonary artery.

Adult↗
PubMed1977

Contrast nasopharyngography.

Contrast nasopharyngography was performed in 25 cases of nasopharyngeal lesions, 15 of which were carcinoma, six malignant lymphoma, and four benign lesions including neurofibroma, haemangioma, angiofibroma and tuberculosis. Nasopharyngography was also performed in 22 cases with extranasopharyngeal lesions, including nine of head and neck malignant lymphoma and 13 of tumours originating in adjacent organs. To describe the extent and site of the tumour, the nasopharyngeal walls were labelled segment 1 to 15 on axial and lateral views. The lateral skull films were negative in five of eight small malignancies involving no more than five wall segments, and also negative in six of 10 cases of unilateral involvement. Small lesions involving the unilateral fossa of Rosenmueller and/or the superolateral wall were frequently undetected. Nasopharyngography is indicated in cases where clinical suspicions of a lesion remain after a normal straight film. When malignancies were treated with radiation therapy a pre-irradiation nasopharyngogram clearly depicted the site and extent of the disease, and a post-irradiation study showed a marked shrinkage of the tumour mass and/or markedly improved raggedness of the wall of the nasopharynx. Four benign lesions showed large space-occupying lesions. In the case of tuberculosis, for example, the nasopharyngeal cavity was totally obliterated by the granulomatous tissue. In nine cases of malignant lymphoma involving the neck nodes or the palatine tonsil, the nasopharyngogram was normal.

Contrast Media↗