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Biomedical subjects

B Wimmer

Publications and source records attributed to B Wimmer.

At least 109 records · Page 6Linked to original sources
PubMed1982

[Sonography of blunt abdominal trauma (author's transl)].

Sonographic examination of the abdomen after blunt abdominal trauma represents a rapid and effective diagnostic method without bothering the patient. It has proved its value not only in the confirmation or exclusion of free fluid in the abdomen caused by liver of spleen rupture, but also in such cases actually it replaces peritoneal lavage or exploratory laparotomy. It is also qualified for diagnosis of intraparenchymal or subcapsular hemorrhages, intraperitoneal as well as retroperitoneal and for follow up. In particular delayed bleedings including the risk of a retarded organ rupture can be detected early. A failure rate of 1.4% in 282 sonographically examined cases of blunt abdominal trauma further confirms the reliability of this method.

Abdominal Injuries↗
PubMed1981

[Ultrasonic diagnosis of blunt abdominal injuries].

In 190 patients with blunt abdominal trauma a sonogramm was made after admission. In 25 cases blood and fluid had accumulated in the abdominal cavity. In 24 cases diagnosis was correct. In patients who had organ lesions without fluid in the abdominal cavity the injured organ could be determined in 22 out of 25 cases. The danger of late liver and spleen ruptures existed in patients with organ hematomas. False positive results regarding fluid accumulation in the peritoneal cavity were found in 3 out of 165 patients.

Abdominal Injuries↗
PubMed1981

[Obstructive jaundice of benign and malignant origin: radiodiagnosis (author's transl)].

Sonography and abdominal survey are the basic image-producing examinations in obstructive jaundice. Excretory cholegraphy fails when the serum bilirubin level is more than 2 mg%. The method of choice for direct visualization of the biliary tract is to try an endoscopic retrograde contrast injection. If this fails, percutaneous transhepatic cholegraphy may be offered with more than 90% accuracy. This simple technique is easily changed into percutaneous biliary drainage. Our experience with more than 120 cases is reported.

Biliary Tract Neoplasms↗
PubMed1981

[Spontaneous external gallbladder perforation (author's transl)].

Spontaneous perforation of the gallbladder is one complication of cholelithiasis. There is a greater occurrence of free perforation in the peritoneal cavity with biliary peritonitis, followed by the perforation into the stomach, small intestine and colon. A single case of the nowadays rare spontaneous perforation in and through the abdominal wall will be reported. Spontaneous gallbladder perforation appears nearly asymptomatic in its clinical course because of absent biliary peritonitis.

Aged↗
PubMed1980

[The sonographic diagnosis of tumours of the chest wall (author's transl)].

Ultrasound diagnosis depends on the registration and evaluation of sonic impulses and their reflections which explore the interior of the body safely and differentiate between various tissues. The B-scan technique permits the production of transverse sections and has become an important aid to diagnosis in obstetrics, gynaecology, gastro-enterology and urology. Gas and bone do not conduct the high frequency impulses. Consequently sonography has remained unimportant in the thorax, with the exception of echo cardiography. Abnormalities of the chest wall may, however, provide an acoustic window, which occasionally makes diagnosis possible.

Adult↗
PubMed1980

[Ultrasonography of the kidney (author's transl)].

Ultrasound is a nowadays widely accepted diagnostic tool in urology and nephrology. It can improve, supplement or even replace standard radiographic procedures. Indications and limitations are presented. Main indications for renal ultrasound are renal and pararenal masses and nonvisualisation of the kidney. As in any other imaging procedure, the diagnostic accuracy depends on the following: location and size of the lesion and its density compared to that of the neighborhood, and the quality of the imaging unit and of the investigator.

Adenocarcinoma↗
PubMed1980

[Renal embolisation, renal cystography and percutaneous nephrostomy (author's transl)].

In renal disease, therapeutic procedures performed by radiologists include embolisation, cystography with obliteration and percutaneous nephrostomy. More than 72 therapeutic occlusions of the renal artery by balloon, coil, and gelfoam are presented. Basic differences in technique of application and in the mechanism of Ethibloc in comparison to other kinds of embolisation material are pointed out. In 61 diagnostic punctures of renal cysts, guided by sonograpny, 31 were treated by injection of Lipiodol. As in cystography, the combination of sonography and radiology proved to be highly valuable in 37 percutaneous nephrostomies. Technique, indication, contraindication, and complication of renal embolisation, renal cystography and percutaneous nephrostomy are briefly discussed.

Adenocarcinoma↗
PubMed1980

[Oral contraceptives and benign tumorous conditions of the liver (author's transl)].

Tumorous lesions of the liver were diagnosed by means of angiography, sonography and laparoscopy in six patients on oral contraceptives for a long time. These lesions were identified as liver cell adenoma (1), focal nodular hyperplasia (4) and cavernous hemangioma (1). The relationship between oral contraceptives and liver disorders is well-known. All cases of focal nodular hyperplasia show vascular alterations which may be important in the discussion of oral contraceptives being responsible. In contrast to liver cell adenoma and hemangioma, focal nodular hyperplasia may be considered as a nodular reparative regeneration of the parenchyma following focal parenchymal necrosis due to segmental vascular occlusion (i. e. thrombosis or fibrotic intimal obliteration). This lesions can therefore not be defined as a true neoplasm. The clinical findings are uncharacteristic, whereas selective hepatic artery angiography, shows typical features that distinguish liver cell adenoma from focal nodular hyperplasia. Regular medical examinations are recommended for women on continuous oral contraceptives for more than five years, because this group of patients is threatened by serious sequelae including intrahepatic and abdominal hemorrhage.

Adenoma↗
PubMed1980

[Percutaneous nephropyelostomy in combination with sonography and x-ray technology (author's transl)].

Sonography guarantees in a simple manner visualisation of the kidneys and of the renal tract independent of functioning. Besides enabling an exact localisation, sonography yields accurate data on the spatial depth. Hence, it must be considered the method of choice for antegrade pyelography and percutaneous nephropyelostomy, especially if the kidney is inactive. The requisite puncture is performed according to a modified Seldinger technique. The article reports on technical details, indication and results based on a study of 20 patients.

Adolescent↗