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Dive into the research topics where Peter Georgi is active.

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Featured researches published by Peter Georgi.


International Journal of Radiation Oncology Biology Physics | 1982

Radioisotope therapy of cystic craniopharyngeomas

Ludwig G. Strauss; V. Sturm; Peter Georgi; Wolfgang Schlegel; Hermann Ostertag; John H. Clorius; Gerhard van Kaick

Eighteen patients suffering from cystic craniopharyngeoma were treated with intracavitary irradiation. The beta-emitting radioisotope 90y (2.25 MeV) was instilled into the cyst following stereotactic puncture of the space-occupying lesion. The surgical approach was planned using angiograms and reconstructed transmission computer tomography (TCT) coronal and saggital sections. Therapy was devised to deliver 20,000 rad to the cysts wall. Eleven patients received follow-up TCT examinations after four months. Eight of 11 patients had a significant volume decrease in the craniopharyngeoma cyst. In two patients, the cystic volume remained unchanged; one had progression of disease. It is concluded that the intracavitary treatment of cystic craniopharyngeoma will result in a reduction of the size of the space-occupying lesion.


Nephron | 1978

Evidence of Possible Association of Nephrolithiasis and Nephroptosis

John H. Clorius; Wolfgang Huber; Magnhild Kjelle-Schweigler; Wolfgang Schlegel; Peter Georgi; Joachim Zelt

Two separate populations, one consisting of 100 patients with renal stones and one consisting of 81 patients with nephroptosis were examined to determine whether an association may exist between excessive renal mobility and renal stone formation. The statistical analysis of the data suggests a direct relationship between nephroptosis and the occurrence of renal stones.


European Journal of Nuclear Medicine and Molecular Imaging | 1977

Position dependent renogram changes of the mobile kidney

John H. Clorius; Magnhild Kjelle-Schweigler; Peter Georgi; Hans J. Sinn; Klaus Moehring

The present study evaluates the isotope renograms, obtained in prone and upright position of 87 patients with 93 mobile kidneys. Scintiphotos were made to determine the extent of renal movement. The transient position abnormality of the kidney was compared to the position dependent isotope renogram changes. It was possible to describe three types of floating kidney each with a characteristic motion and position dependent function disturbance. One form of renal ptosis, ptosis with ventral rotation, was commonly associated with a 2nd phase renogram abnormality and with hypertension.


Developments in cardiovascular medicine | 1990

Regional myocardial nitrogen-13-glutamate uptake following successful coronary angioplasty

Harald Tillmanns; Rainer Zimmermann; Wolfram H. Knapp; F. Helus; Peter Georgi; Bernhard Rauch; Franz-Josef Neumann; Sven Girgensohn; Wolfgang Maier-Bors; Wolfgang Kübler

N-13 labeled glutamate has previously been used as a positive marker of reversible myocardial ischemia in man [2,9]. The augmented uptake of N-13 glutamate could be due to increased utilization of glutamate and its transamination products for anaerobic ATP production.


Archive | 1990

Verfahren der Radiodiagnostik

Karl Zum Winkel; Peter Georgi; Wolfram H. Knapp

Zusatzlich zur morphologisch-dynamischen Diagnostik der Nuklearmedizin, die Funktionen topographisch zuordnen und Funktionsablaufe registrieren last, mussen die Grundzuge einiger Verfahren der radiologischen Diagnostik erortert werden. Ihre Moglichkeiten und Ergebnisse sind bedeutungsvoll bei der Kombination mit der nuklearmedizinischen Diagnostik fur die Beurteilung der klinischen Relevanz der Radioisotopenmethoden. Im vergangenen Jahrzehnt haben die neu eingefuhrten und intensiv verbesserten Verfahren der Radiodiagnostik (CT, Ultraschall, MRT) die Nuklearmedizin auf dem Gebiet der Darstellung struktureller, morphologischer Details verdrangt. Durch die Verwendung neuer Radiopharmaka und neuer nuklearmedizinischer Mesprinzipien war der Verlust teilweise auszugleichen.


Archive | 1990

Blut- und Abwehrsysteme

Karl Zum Winkel; Peter Georgi; Wolfram H. Knapp

Blutuntersuchungen mit Radionukliden bieten den Vorteil der ungewohnlich ge- ringen Substanzbelastung und damit des Einblicks in physiologische Vorgange ohne deren pharmakologische Beeinflussung. Diese Vorteile sind bei chemischen Analysen nur bedingt zu gewahrleisten. Einige Verfahren sind ohne Verwendung von Radiopharmaka uberhaupt nicht zu realisieren, andere fuhren zu wesentli- chen methodischen Vereinfachungen.


Archive | 1990

Niere und ableitende Harnwege

Karl Zum Winkel; Peter Georgi; Wolfram H. Knapp

Aufgaben der Niere sind Aufrechterhaltung des Wasser- und Elektrolythaushal- tes (Osmoregulation und Sicherung der aktuellen Reaktion des Blutes), die Aus- scheidung zahlreicher metabolischer Abbauprodukte und innere Sekretion (Renin-Angiotensin, Aldosteron).


The Journal of Nuclear Medicine | 1990

Pharmacokinetics of technetium-99m-MAG3 in humans.

Bernd Bubeck; Wolfgang Brandau; Ernst Weber; Tilman Kälble; Niranjan Parekh; Peter Georgi


Archives of Surgery | 1989

Scar or Recurrent Rectal Cancer: Positron Emission Tomography Is More Helpful for Diagnosis Than Immunoscintigraphy

Peter M. Schlag; Burkhard Lehner; Ludwig G. Strauss; Peter Georgi; Christian Herfarth


The Journal of Nuclear Medicine | 1982

Single-Photon Emission Computed Tomography (SPECT) for Assessment of Hepatic Lesions

Ludwig G. Strauss; Frank Bostel; John H. Clorius; Henry N. Wellman; Peter Georgi

Collaboration


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John H. Clorius

German Cancer Research Center

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Wolfram H. Knapp

German Cancer Research Center

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F. Helus

German Cancer Research Center

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Hermann Ostertag

German Cancer Research Center

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Ludwig G. Strauss

German Cancer Research Center

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B. Kimmig

Heidelberg University

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Hans-Jörg Sinn

German Cancer Research Center

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