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Biomedical subjects

H J Otto

Publications and source records attributed to H J Otto.

At least 55 records · Page 3Linked to original sources

[Brain tumor diagnosis using 3-detector-gamma-encephalography].

The probability of diagnosis of brain tumours by means of 3-detector-gamma-encephalography (Hg 197-Neohydrin) is higher than that of the scintigraphic procedures so far available. Above all, the diagnostic accuracy of foci with low storage rates and space-occupying processes of the infratentorial region is improved. The short duration of the examination allows the method to be applied as a screening test.

Brain Neoplasms↗

[Results of nuclear medical, electroencephalographic, and angiographic examinations after brain tumor operations].

The methods of nuclear medicine and electro-encephalography allow, in combination, in almost every case the answer to the question of the cerebral tumour relapse. Our evaluation confirms the discovery of the greater sensitivity of the isotopic methods with relapses of glioblastomas, while relapses of meningiomas, astrocytomas, oligodendrogliomas and spongioblastomas can be recognized more frequently only by electro-encephalographic methods. The value of angiography is limited in cases of cerebral tumour relapses without pathological vascularisation, since the swelling can spread in the resection cavity without retroaction on the surrounding areas. For this reason vascular displacement (an only be observed very late on. Clinical judgement is furthermore complicated by the fact that after the removal of the primary tumour, often no reposition of the arteries ensues. After our exainations, a negative angiographic condition can be rule out a diagnosis of a relapse which has been established by electro-encephaolographic and isotopic methods.

Astrocytoma↗