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Start Over Author "Lohaus F" Publisher springer heidelberg
10 results on '"Lohaus F"'

1. Stereotactic radiosurgery and radiotherapy for resected brain metastases: current pattern of care in the Radiosurgery and Stereotactic Radiotherapy Working Group of the German Association for Radiation Oncology (DEGRO) (vol 198, pg 919, 2022)

Author

Rogers, S., Baumert, B., Blanck, O., Boehmer, D., Bostroem, J., Engenhart-Cabillic, R., Ermis, E., Exner, S., Guckenberger, M., Habermehl, D., Hemmatazad, H., Henke, G., Lohaus, F., Lux, S., Mai, S., Minasch, D., Rezazadeh, A., Steffal, C., Temming, S., Wittig, A., Zweifel, C., Riesterer, O., Combs, S. E., Rogers, S., Baumert, B., Blanck, O., Boehmer, D., Bostroem, J., Engenhart-Cabillic, R., Ermis, E., Exner, S., Guckenberger, M., Habermehl, D., Hemmatazad, H., Henke, G., Lohaus, F., Lux, S., Mai, S., Minasch, D., Rezazadeh, A., Steffal, C., Temming, S., Wittig, A., Zweifel, C., Riesterer, O., and Combs, S. E.

Published
2023

2. Stereotactic radiosurgery and radiotherapy for resected brain metastases: current pattern of care in the Radiosurgery and Stereotactic Radiotherapy Working Group of the German Association for Radiation Oncology (DEGRO)

Author

Rogers, S., Baumert, B., Blanck, O., Boehmer, D., Bostroem, J., Engenhart-Cabillic, R., Ermis, E., Exner, S., Guckenberger, M., Habermehl, D., Hemmatazad, H., Henke, G., Lohaus, F., Lux, S., Mai, S., Minasch, D., Rezazadeh, A., Steffal, C., Temming, S., Wittig, A., Zweifel, C., Riesterer, O., Combs, S., Rogers, S., Baumert, B., Blanck, O., Boehmer, D., Bostroem, J., Engenhart-Cabillic, R., Ermis, E., Exner, S., Guckenberger, M., Habermehl, D., Hemmatazad, H., Henke, G., Lohaus, F., Lux, S., Mai, S., Minasch, D., Rezazadeh, A., Steffal, C., Temming, S., Wittig, A., Zweifel, C., Riesterer, O., and Combs, S.

Abstract

Purpose Preoperative stereotactic radiosurgery (SRS) of brain metastases may achieve similar local control and better leptomeningeal control rates than postoperative fractionated stereotactic radiotherapy (FSRT) in patients treated with elective metastasectomy. To plan a multicentre trial of preoperative SRS compared with postoperative FSRT, a survey of experts was conducted to determine current practice. Methods A survey with 15 questions was distributed to the DEGRO Radiosurgery and Stereotactic Radiotherapy Working Group. Participants were asked under what circumstances they offered SRS, FSRT, partial and/or whole brain radiotherapy before or after resection of a brain metastasis, as well as the feasibility of preoperative stereotactic radiosurgery and neurosurgical resection within 6 days. Results Of 25 participants from 24 centres, 22 completed 100% of the questions. 24 respondents were radiation oncologists and 1 was a neurosurgeon. All 24 centres have one or more dedicated radiosurgery platform and all offer postoperative FSRT. Preoperative SRS is offered by 4/24 (16.7%) centres, and 9/24 (37.5%) sometimes recommend single-fraction postoperative SRS. Partial brain irradiation is offered by 8/24 (33.3%) centres and 12/24 (50%) occasionally recommend whole-brain irradiation. Two centres are participating in clinical trials of preoperative SRS. SRS techniques and fractionation varied between centres. Conclusion All responding centres currently offer postoperative FSRT after brain metastasectomy. Approximately one third offer single-fraction postoperative SRS and four already perform preoperative SRS. With regard to potential co-investigators, 18 were identified for the PREOP-2 multicentre trial, which will randomise between preoperative SRS and postoperative FSRT.

Published
2022

3. The impact of local control on overall survival after stereotactic body radiotherapy for liver and lung metastases from colorectal cancer: a combined analysis of 388 patients with 500 metastases

Author

Klement, R. J., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., Andratschke, N., Klement, R. J., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., and Andratschke, N.

Published
2017

4. Patterns of care and outcome analysis of SBRT for colorectal lung and liver metastases in 388 patients with 500 metastases: an analysis of the DEGRO working group Stereotactic Radiotherapy

Author

Basler, L., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Klement, R. J., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., Andratschke, N., Basler, L., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Klement, R. J., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., and Andratschke, N.

Published
2017

5. Interobserver variability in target volume delineation of hepatocellular carcinoma

Author

Gkika, E., Tanadini-Lang, S., Kirste, S., Holzner, P. A., Neeff, H. P., Rischke, H. C., Reese, T., Lohaus, F., Duma, M. N., Dieckmann, K., Semrau, R., Stockinger, M., Imhoff, D., Kremers, N., Haefner, M. F., Andratschke, N., Nestle, U., Grosu, A. L., Guckenberger, M., Brunner, T. B., Gkika, E., Tanadini-Lang, S., Kirste, S., Holzner, P. A., Neeff, H. P., Rischke, H. C., Reese, T., Lohaus, F., Duma, M. N., Dieckmann, K., Semrau, R., Stockinger, M., Imhoff, D., Kremers, N., Haefner, M. F., Andratschke, N., Nestle, U., Grosu, A. L., Guckenberger, M., and Brunner, T. B.

Abstract

Background Definition of gross tumor volume (GTV) in hepatocellular carcinoma (HCC) requires dedicated imaging in multiple contrast medium phases. The aim of this study was to evaluate the interobserver agreement (IOA) in gross tumor delineation of HCC in a multicenter panel. Methods The analysis was performed within the Stereotactic Radiotherapy working group of the German Society for Radiation Oncology (DEGRO). The GTVs of three anonymized HCC cases were delineated by 16 physicians from nine centers using multiphasic CT scans. In the first case the tumor was well defined. The second patient had multifocal HCC (one conglomerate and one peripheral tumor) and was previously treated with transarterial chemoembolization (TACE). The peripheral lesion was adjacent to the previous TACE site. The last patient had an extensive HCC with a portal vein thrombosis (PVT) and an inhomogeneous liver parenchyma due to cirrhosis. The IOA was evaluated according to Landis and Koch. Results The IOA for the first case was excellent (kappa: 0.85); for the second case moderate (kappa: 0.48) for the peripheral tumor and substantial (kappa: 0.73) for the conglomerate. In the case of the peripheral tumor the inconsistency is most likely explained by the necrotic tumor cavity after TACE caudal to the viable tumor. In the last case the IOA was fair, with a kappa of 0.34, with significant heterogeneity concerning the borders of the tumor and the PVT. Conclusion The IOA was very good among the cases were the tumor was well defined. In complex cases, where the tumor did not show the typical characteristics, or in cases with Lipiodol (Guerbet, Paris, France) deposits, IOA agreement was compromised.

Published
2017

6. The impact of local control on overall survival after stereotactic body radiotherapy for liver and lung metastases from colorectal cancer: a combined analysis of 388 patients with 500 metastases

Author

Klement, R. J., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., Andratschke, N., Klement, R. J., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., and Andratschke, N.

Published
2017

7. Patterns of care and outcome analysis of SBRT for colorectal lung and liver metastases in 388 patients with 500 metastases: an analysis of the DEGRO working group Stereotactic Radiotherapy

Author

Basler, L., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Klement, R. J., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., Andratschke, N., Basler, L., Adebahr, S., Alheit, H., Allgaeuer, M., Becker, G., Blanck, O., Boda-Heggemann, J., Brunner, T., Duma, M., Eble, M. J., Ernst, I, Gerum, S., Habermehl, D., Hass, P., Henkenberens, C., Hildebrandt, G., Imhoff, D., Kahl, H., Klass, N. D., Klement, R. J., Krempien, R., Lewitzki, V, Lohaus, F., Ostheimer, C., Petersen, C., Papachristofilou, A., Rieber, J., Schneider, T., Schrade, E., Semrau, R., Teichgraeber, U., Wachter, S., Wittig, A., Guckenberger, M., and Andratschke, N.

Published
2017

8. Interobserver variability in target volume delineation of hepatocellular carcinoma

Author

Gkika, E., Tanadini-Lang, S., Kirste, S., Holzner, P. A., Neeff, H. P., Rischke, H. C., Reese, T., Lohaus, F., Duma, M. N., Dieckmann, K., Semrau, R., Stockinger, M., Imhoff, D., Kremers, N., Haefner, M. F., Andratschke, N., Nestle, U., Grosu, A. L., Guckenberger, M., Brunner, T. B., Gkika, E., Tanadini-Lang, S., Kirste, S., Holzner, P. A., Neeff, H. P., Rischke, H. C., Reese, T., Lohaus, F., Duma, M. N., Dieckmann, K., Semrau, R., Stockinger, M., Imhoff, D., Kremers, N., Haefner, M. F., Andratschke, N., Nestle, U., Grosu, A. L., Guckenberger, M., and Brunner, T. B.

Abstract

Background Definition of gross tumor volume (GTV) in hepatocellular carcinoma (HCC) requires dedicated imaging in multiple contrast medium phases. The aim of this study was to evaluate the interobserver agreement (IOA) in gross tumor delineation of HCC in a multicenter panel. Methods The analysis was performed within the Stereotactic Radiotherapy working group of the German Society for Radiation Oncology (DEGRO). The GTVs of three anonymized HCC cases were delineated by 16 physicians from nine centers using multiphasic CT scans. In the first case the tumor was well defined. The second patient had multifocal HCC (one conglomerate and one peripheral tumor) and was previously treated with transarterial chemoembolization (TACE). The peripheral lesion was adjacent to the previous TACE site. The last patient had an extensive HCC with a portal vein thrombosis (PVT) and an inhomogeneous liver parenchyma due to cirrhosis. The IOA was evaluated according to Landis and Koch. Results The IOA for the first case was excellent (kappa: 0.85); for the second case moderate (kappa: 0.48) for the peripheral tumor and substantial (kappa: 0.73) for the conglomerate. In the case of the peripheral tumor the inconsistency is most likely explained by the necrotic tumor cavity after TACE caudal to the viable tumor. In the last case the IOA was fair, with a kappa of 0.34, with significant heterogeneity concerning the borders of the tumor and the PVT. Conclusion The IOA was very good among the cases were the tumor was well defined. In complex cases, where the tumor did not show the typical characteristics, or in cases with Lipiodol (Guerbet, Paris, France) deposits, IOA agreement was compromised.

Published
2017

9. Interobserver Variability in the Target Volume Definition for Hepatocellular Carcinomas with and without portal vein Thrombosis

Author

Gkika, E., Lang, S., Kirste, S., Holzner, P., Neeff, H., Rischke, C., Reese, T., Lohaus, F., Duma, M. -N., Dieckmann, K., Semrau, R., Stockinger, M., Nestle, U., Grosu, A. -L., Guckenberger, M., Brunner, T., Gkika, E., Lang, S., Kirste, S., Holzner, P., Neeff, H., Rischke, C., Reese, T., Lohaus, F., Duma, M. -N., Dieckmann, K., Semrau, R., Stockinger, M., Nestle, U., Grosu, A. -L., Guckenberger, M., and Brunner, T.

Published
2016

10. Interobserver Variability in the Target Volume Definition for Hepatocellular Carcinomas with and without portal vein Thrombosis

Author

Gkika, E., Lang, S., Kirste, S., Holzner, P., Neeff, H., Rischke, C., Reese, T., Lohaus, F., Duma, M. -N., Dieckmann, K., Semrau, R., Stockinger, M., Nestle, U., Grosu, A. -L., Guckenberger, M., Brunner, T., Gkika, E., Lang, S., Kirste, S., Holzner, P., Neeff, H., Rischke, C., Reese, T., Lohaus, F., Duma, M. -N., Dieckmann, K., Semrau, R., Stockinger, M., Nestle, U., Grosu, A. -L., Guckenberger, M., and Brunner, T.

Published
2016

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