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Biomedical subjects

P Rohmer

Publications and source records attributed to P Rohmer.

At least 37 records · Page 2Linked to original sources
PubMed1986

[The place of ultrasonics in the diagnosis of traumatic hemoperitoneum].

Classically, the diagnosis of hemoperitoneum is based on clinical symptoms, which are not always relevant. Several complementary procedures can be considered when dealing with polytraumatic patients who may be comatose: scintigraphy, arteriography, CT, sonography and peritoneal lavage. The authors have finally selected sonography and lavage. Since ultrasound is reliable, reproductable and non aggressive, it is being more and more utilized. It readily shows solid-liquid contrast, and is particularly sensitive in displaying fluid in peritoneal recesses; parenchymal lesions are also evaluated. II enables one to explore the abdominal cavity with precision. Lavage is reserved for acute lesion with severe, evolutive hemoperitoneum, requiring immediate surgery. The indications for other imaging modalities are also discussed.

Abdominal Injuries↗
PubMed1986

[Ultrasonics in abdominal emergencies. Results of a series of 179 cases].

The study of a series of 179 emergency ultrasonic examinations showed a sensitivity of 97% and a specificity of 98%. Such results confirm the reliability of real-time sonography in the assessment of the acute abdomen, obstructive intestinal syndromes still requiring mainly conventional procedures. With this exception, the part of ultrasound in the diagnostic and the therapeutic strategies is essential. Associated to plain X-ray films, it enables one to curb down the number of other imaging procedures, such as IVP, angiography, or CT. Emergency ultrasound, particularly in traumatology, requires trained, competent radiologists. Performant machines should be available in admittance and intensive care wards.

Abdomen↗
PubMed1986

[An x-ray computed tomographic study of peritoneal ligaments and various mesos].

The CT analysis of peritoneal ligaments and mesos is possible thanks to the fluid contrast introduced by ascites, but also by identification of their contents: fat and opacified vascular elements. Ascites renders easy the display of the falciform ligament. Other displayed ligaments are the smaller omentum, the gastrosplenic ligament, the splenopancreatic ligament, the phrenolienal and phrenocolonic ligaments, the mesocolon, the mesosigmoid, the mesentery and the broad ligaments. The radioanatomic patterns of those peritoneal elements are depicted.

Ascites↗
PubMed1985

Hepatic alveolar echinococcosis: correlative US and CT study.

A total of 24 cases of hepatic alveolar echinococcosis (HAE) due to Echinococcus multilocularis was assessed by US and CT. The diagnosis was confirmed in all cases by immunologic and histologic study. Both US and CT patterns of HAE showed changes of liver morphology in both contour and size. Abnormal areas of parenchyma were nodular or in fields, irregular, heterogeneous, and basically echogenic. On CT these lesions were hypodense (30 to 40 HU) and did not show enhancement after administration of intravenous contrast medium. Clustered microcalcifications were encountered within the abnormal parenchymal fields in 50% of cases, and necrotized zones occurred in 40% of cases. Dilatation of intrahepatic bile ducts was commonly seen, especially on US; hilar involvement was frequent. Follow-up by both techniques can display increases of primary lesions, occurrence of new foci, and local or regional extensions. Precise evaluation of the lesions arising from correlative use of US and CT permits adequate therapeutic management.

Adult↗
PubMed1985

[Lymphographic and x-ray computed tomographic determination of criteria for normality of the transverse diameter of retroperitoneal lymph nodes].

Evaluation of ganglionic extension in malignant processes rely widely on ultrasound and CT. However the information yielded by those procedures regarding the ganglionic structure is poor. What is appreciated is the size of ganglia, that is presence or absence of adenomegaly. A CT study of subjects in which lymphography did not reveal structural or size changes enables one to specify the following criteria of normality: The transverse diameter of abdominal lymph nodes should not exceed 1,5 cm. The product: transverse diameter X antero posterior diameter should not exceed 2.

Female↗
PubMed1983

[Comparative echographic and scanographic study of a series of 19 hepatic angiomas].

The correlation of sonography with CT was studied in a series of 19 hepatic angiomas. CT is more specific, since it can demonstrate the vascular nature of the lesion. But it is less sensitive: in three cases it remained negative even after bolus injection of contrast medium. A follow-up strategy, and a decision policy regarding the different examination procedures is discussed.

Adult↗
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↗
PubMed1982

Sonographic study of the juxtarenal retroperitoneal compartments.

Computed tomographic scanning has brought analysis of the different retroperitoneal compartments and fascias into routine radiologic diagnosis. Ultrasound has generally been thought to be incapable of revealing the details of these anatomic structures unless they are enhanced by pathologic changes, such as the presence of fluid collections. The authors show that sonograms can reveal the anatomic features of the juxtarenal compartments in patients with pathologic conditions as well as in many normal subjects.

Humans↗