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Your search keyword '"Kaiser, H.-J."' showing total 223 results
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223 results on '"Kaiser, H.-J."'

6. Preoperative motor system brain mapping using positron emission tomography and statistical parametric mapping: hints on cortical reorganisation. (Paper)

Author

Meyer, P.T., Sturz, L., Sabri, O., Schreckenberger, M., Spetzger, U., Setani, K.S., Kaiser, H-J., and Buell, U.

Subjects
Patients -- Care and treatment, Brain mapping -- Methods -- Equipment and supplies, Health, Psychology and mental health, Methods, Equipment and supplies
Abstract

Objectives: This study investigated the applicability of statistical parametric mopping (SPM) for analysing individual preoperative brain mapping studies in patients with cerebral mass lesions for neuro-surgical planning. The study further [...]

Published
2003

18. Contact potential and heterogenous catalysis

Author

Kaiser, H. J., Freyberg, Hans Georg von, and Doiwa, Alfred

Subjects
ddc:540
Abstract

It is shown that in the case of metals connected by a first order conductor the decomposition of formic acid is less at the element of lower work function while it is more at the element of higher work function. The metals used were Ni, Cd, Zn. The results correspond to the investigations of other authors 1 who showed that the activation energy on alloys depends on how far the concentration of electrons is from full saturation of the lattice type. This effect is explicable in terms of the development of a contact potential, the conditions in the case of metals being similar to those in the case of alloys

Published
2016

19. Kontaktpotential und heterogene Katalyse

Author

Kaiser, H. J., Freyberg, Hans Georg von, Doiwa, Alfred, Kaiser, H. J., Freyberg, Hans Georg von, and Doiwa, Alfred

Abstract

It is shown that in the case of metals connected by a first order conductor the decomposition of formic acid is less at the element of lower work function while it is more at the element of higher work function. The metals used were Ni, Cd, Zn. The results correspond to the investigations of other authors 1 who showed that the activation energy on alloys depends on how far the concentration of electrons is from full saturation of the lattice type. This effect is explicable in terms of the development of a contact potential, the conditions in the case of metals being similar to those in the case of alloys

Published
2016

21. Colour vision deficiencies in Alzheimer's disease

Author

Pache, M, Smeets, C H W, Gasio, P F, Savaskan, E, Flammer, J, Wirz-Justice, A, Kaiser, H J, University of Zurich, and Kaiser, H J

Subjects
1302 Aging, 610 Medicine & health, 2717 Geriatrics and Gerontology, 11359 Institute for Regenerative Medicine (IREM)
Published
2003
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49. Integrated boost IMRT with FET-PET-adapted local dose escalation in glioblastomas. Results of a prospective phase II study.

Author

Piroth MD, Pinkawa M, Holy R, Klotz J, Schaar S, Stoffels G, Galldiks N, Coenen HH, Kaiser HJ, Langen KJ, Eble MJ, Piroth, M D, Pinkawa, M, Holy, R, Klotz, J, Schaar, S, Stoffels, G, Galldiks, N, Coenen, H H, and Kaiser, H J

Abstract

Purpose: Dose escalations above 60 Gy based on MRI have not led to prognostic benefits in glioblastoma patients yet. With positron emission tomography (PET) using [(18)F]fluorethyl-L-tyrosine (FET), tumor coverage can be optimized with the option of regional dose escalation in the area of viable tumor tissue.Methods and Materials: In a prospective phase II study (January 2008 to December 2009), 22 patients (median age 55 years) received radiochemotherapy after surgery. The radiotherapy was performed as an MRI and FET-PET-based integrated-boost intensity-modulated radiotherapy (IMRT). The prescribed dose was 72 and 60 Gy (single dose 2.4 and 2.0 Gy, respectively) for the FET-PET- and MR-based PTV-FET((72 Gy)) and PTV-MR((60 Gy)). FET-PET and MRI were performed routinely for follow-up. Quality of life and cognitive aspects were recorded by the EORTC-QLQ-C30/QLQ Brain20 and Mini-Mental Status Examination (MMSE), while the therapy-related toxicity was recorded using the CTC3.0 and RTOG scores.Results: Median overall survival (OS) and disease-free survival (DFS) were 14.8 and 7.8 months, respectively. All local relapses were detected at least partly within the 95% dose volume of PTV-MR((60 Gy)). No relevant radiotherapy-related side effects were observed (excepted alopecia). In 2 patients, a pseudoprogression was observed in the MRI. Tumor progression could be excluded by FET-PET and was confirmed in further MRI and FET-PET imaging. No significant changes were observed in MMSE scores and in the EORTC QLQ-C30/QLQ-Brain20 questionnaires.Conclusion: Our dose escalation concept with a total dose of 72 Gy, based on FET-PET, did not lead to a survival benefit. Acute and late toxicity were not increased, compared with historical controls and published dose-escalation studies. [ABSTRACT FROM AUTHOR]

Published
2012
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