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Biomedical subjects

S Tada

Publications and source records attributed to S Tada.

At least 289 records · Page 16Linked to original sources
PubMed1985

Differentiation of benign from malignant ascites by sonographic evaluation of gallbladder wall.

The gallbladders of 65 patients with ascites were examined on ultrasonograms. In 37 patients, the thickness of the gallbladder wall was less than or equal to 3 mm and was considered normal or "single." In 28 patients, the gallbladder wall thickness was greater than or equal to 4 mm, with a central echo-free zone giving the appearance of a double wall. Of the 37 patients with single-walled gallbladders, 35 (95%) had carcinomatous peritonitis. Of the 28 patients with double-walled gallbladders, 23 (82%) had benign disease, such as liver cirrhosis (n = 22) and nephrotic syndrome with hypoalbuminemia (n = 1). The results of this study indicate that sonography is useful in determining whether the cause of ascites is malignant or benign disease.

Ascites↗
PubMed1985

Candida-induced histamine release from basophils: relationship to house dust- and anti-IgE-induced secretion.

Candida albicans-induced histamine release from basophils was studied in 54 patients with bronchial asthma in comparison with the release caused by house dust and anti-IgE. The release of histamine induced by C. albicans and that induced by house dust were closely related to the serum levels of specific IgE antibodies as expressed by RAST scores. A correlation of C. albicans-induced histamine release with the release caused by anti-IgE was not generally observed. On the other hand, a close correlation was found between house dust- and anti-IgE-induced histamine release. It was suggested from these results that the differences between C. albicans- and house dust-induced histamine release might be due to the different antigenicity of the two allergens.

Adolescent↗
PubMed1985

[Value and problems of magnetic resonance imaging in the diagnosis of aortic dissection].

Nuclear magnetic resonance imaging was performed for 14 patients with aortic dissection using a 0.15 T resistive magnetic imaging system (Toshiba MRT-15A). The diagnosis was confirmed by X-ray computed tomography. The scan time was 15 minutes, and five or 10 slices were obtained simultaneously. The imaging was made using spin echo method (repetition time: TR = 200-800 msec, and echo delay time: TE = 40 msec). The natural contrast between flowing blood and stationary material permits the clear demonstration of the intimal flap of aortic dissection. The intimal flap was demonstrated in seven cases as a curvilinear high intensity band within the dilated aorta in consecutive sections. The rapidly flowing blood in the narrow true lumen produced little or no signal, while eddy currents within the false lumen usually produced signals. The thrombi in the false lumen had high intensity. In seven cases, the false lumen was completely filled with thrombi and the intimal flap could not be observed on nuclear magnetic resonance images.

Aortic Dissection↗
PubMed1985

[Antegrade pyelography].

Percutaneous antegrade pyelography under ultrasonic real-time guidance was performed in 18 cases of obstructive hydronephrosis, which were poorly visualized the renal collecting system on excretory urography and in which or retrograde pyelography could not be performed successfully. This technique was safe, accurate and easy, and provided significant diagnostic information in these cases. With the patient under local anesthesia an 18 gauge spinal needle was inserted into the renal pelvis. Approximately 10-20 ml fluid were withdrawn from the renal pelvis for cytology and culture. After the injection of contrast medium radiograms were obtained in adequate positions. Delayed films were obtained when indicated. In 8 cases pelvic and/or ureter tumor was diagnosed. In two cases congenital anomalies were diagnosed, one had complete obstruction at the ureteropelvic junction and the other had complete obstruction at the ureterovesical junction. In the other three cases ureter ligation and in 5 cases ureter stenosis were diagnosed. The quality of the aspirated urine was dark-red in 6 cases, positive cytology, in 6 cases, all of which had pelvic and/or ureter tumors. No severe complications were observed.

Adult↗
PubMed1985

[A case of preputial calculi].

A case of a 73-year-old patient with preputial calculi is presented. The patient visited our hospital complaining of consciousness loss. It was impossible to place a catheter because of complete phimosis. Palpatory examination suggested the presence of stones in preputial cavity. Dorsal incision was made. After pus discharge nine small stones were extirpated. Ammonium hydrogen urate (96%) and calcium phosphate (4%) were found in these stones with infrared spectroscopic analysis. Bacteriodes ureolytcus and Peptostreptcoccus asaccharolyticus were isolated from urine specimen.

Aged↗