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Biomedical subjects

K H Gerhardt

Publications and source records attributed to K H Gerhardt.

5 recordsLinked to original sources
PubMed1981

[Thickening of the gastric wall in the echographic section (author's transl)].

The distal portion of the normal stomach can now be visualized in the majority of patients undergoing echographic examination. Pathological thickening of the wall appear in the echographic section as a complete or incomplete cockade phenomenon. Besides the morphological appearance, abdominal echography also permits a certain assessment of gastric peristalsis and its disturbances frequently associated with the cockade phenomenon. With increasing size and rigidity of the wall, the complete cockade phenomenon suggests the presence of a malignant infiltration process in the wall; the incomplete pathological cockade phenomenon of the stomach is, on the other hand, far more ambiguous. Abdominal echography can consequently influence diagnosis directively and economically.

Humans↗
PubMed1981

[Echography of the upper abdominal vessels (author's transl)].

The newer generation of real-time ultrasonic equipment with its high resolution capacity permits not only visualization of the large abdominal vessels like the aorta and inferior vena cava, but in addition the tracing smaller visceral branches. The celiac trunk with its branches, the common hepatic artery and the splenic artery, the superior mesenteric and the two renal arteries can be visualized in 60-80% of all echographically examined patients. Consequently the new possibilities of abdominal echography with regard to assessment of the variations of vessels from the norm and intravascular processes such as thromboses are opened up. Changes in the courses of vessels permit conclusions on the seat and direction of growth of tumors.

Abdomen↗
PubMedDate not supplied

[Changes in kidney function and morphology in the aged].

Increasing age of man leads to macroscopical and microscopical alterations in the kidneys. They cause a reduction of renal plasma flow, glomerular filtration rate and other renal functions. The characteristics of creatinine, blood urea nitrogen and uric acid in old people up to hundred years and over are discussed with regard to vitality and sex. The result of the reduction of kidney function is only a fully compensated renal insufficiency without need of specific therapy, but with need of dose reduction of drugs excreted with urine. The radiological renal cortical index (Vuorinen) is higher in old age because of the involution of renal cortical parenchyma. The sonographic B-scan is able to show these findings as well and to delimit them from pathological ones.

Adult↗