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Biomedical subjects

E Bihr

Publications and source records attributed to E Bihr.

At least 19 recordsLinked to original sources
PubMed1982

[Ultrasonic diagnosis of acute cholecystitis. Critical study of 50 verified cases].

A retrospective study of fifty surgically proven cases of acute cholecystitis and a review of the literature enabled the authors to summarise the sonographic features of the disease. These may include one or several of the following signs: thick gall bladder wall with an occasional posterior hypoechogenic rim, diffuse echogenicity of the purulent bile and local tenderness at the passage of the transducer. If an abscess is present, there is a hypoechogenic area in contact with the gall bladder. The technical problems of the B scan performed on an emergency basis make the use of real time intercostal scans invaluable. Ultrasound should be the first and may be the radiological examination performed in this situation.

Acute Disease↗
PubMed1981

Ultrasonic study of hepatic and splenic traumatic lesions.

Traumatic lesions involving the parenchyma of liver and spleen give heterogeneous echo patterns on sonograms. Associated haematomas appear as sonolucent or sonotransparent areas. Subcapsular haematomas appear as peripheral sonolucent or sonotransparent areas. High resolution sectorial real-time ultrasound demonstrates such abnormalities. When examining for splenic or hepatic lesions, associated lesions such as renal contusion, juxta-renal or retroperitoneal haematoma and haemoperitoneum are sought. Haemoperitoneum may be shown in Morrison's pouch, in the vicinity of the spleen (moon-crescent sign) and also in the sac of Douglas. None of the abnormalities is entirely specific for trauma. However, the sensitivity of ultrasound in the evaluation of trauma is sufficient to render other diagnostic procedures such as C.T. and angiography only rarely necessary.

Humans↗
PubMed1980

[Ultrasonic diagnosis of intraperitoneal fluid in Morrison's pouch (and in the splenoperitoneal recess): the moon crescent sign (author's transl)].

Morrison's pouch, and, accessorily, the spleno-peritoneal recess, constitute specific indicators of the presence of intraperitoneal fluid. Intraperitoneal fluid gives rise to sonolucent atraip between the reflectivity of mean intensity of the liver and spleen, and the intense reflectivity of the perirenal fat. That image, which the authors term the "moon crescent sign", is displayed even when the fluid volume is as small as 30 to 40 ml. It is encountered in presence of ascites, but also in presence of fluid of inflammatory origin, of fluid due to pancreatic autolysis, or of blood. Hence the display of a moon crescent sign is of particular interest in the radiologic evaluation of an acute abdomen.

Abdomen, Acute↗
PubMed1980

[Ultrasonic study of pancreatic duct dilatations].

The analysis of the pancreatic duct constitutes now a routine step in the evaluation of the pancreas. The display of a dilatation above a cephalic tumor has no clinical application. But, on the other hand, in case of chronic pancreatitis, the display of a dilated duct, whose pattern is often particular ("zip-lie duct"), will be taken into account if an ERCP is considered. Lastly, the sonographic display of a canalar lithiasis is possible.

Chronic Disease↗
PubMed1979

[Gastric and intestinal appearances by abdominal ultrasound. The sign of brownian motion (author's transl)].

Gastric, as well as intestinal images, are always present on abdominal ultrasonic scans. Since they are difficult to analyse, such images are usually neglected. Morphological and dynamic criterial (as the "brownian movement sign") enable to identify stomach and intestine. It is then possible to avoid the misinterpretation of normal anatomic elements as pathological processes, and, from time to time, to diagnose specific gastrointestinal lesions.

Adult↗
PubMed1978

[Arterio-venous fistula of the left renal pedicle after nephrectomy. Possibilities and interest of early diagnosis (author's transl)].

The authors study a new case of arterio-venous fistula of the left renal pedicle after nephrectomy for trauma. The interest of this case resides in the existence of a right para-umbilical pulsating mass which corresponds to systolic expansion of the inferior vena cava. This sign, which disappeared after corrective operation has the advantage of orienting towards an abdominal vascular condition. In fact, the diagnosis of iatrogenic arterio-venous fistula was made very early : 6 weeks after nephrectomy. The lesion was treated by the purely abdominal route, in the absence of marked peri-aneurysmal fibrosis. Complete removal of the fistula and of the afferent and efferent vessels corrects recent hypertension and prevents later heart failure.

Adult↗