Search

Your search keyword '"Umutlu L"' showing total 550 results
Start Over Author "Umutlu L"
550 results on '"Umutlu L"'

103. Vergleich einer CT basierten Volumetrie von Lungenkontusionen bei schwerstverletzten Patienten mit dem Outcome

Author

Fochtmann, U, Schmitz, D, Umutlu, L, Keitel, J, Schöneberg, C, Lendemans, S, and Hußmann, B

Subjects
ddc: 610, MSCT, 610 Medical sciences, Medicine, Volumetrie, Korrelation, Lungenkontusion, Outcome, Letalität
Abstract

Fragestellung: Beim schwerstverletzten Patienten stellt eine schwere Lungenkontusion (LK) nach wie vor eine große Herausforderung bei der intensivmedizinischen Behandlung dar und ist mit auch in der aktuellen Literatur noch mit einer hohen Letalität verbunden. Insbesondere bleibt unklar ab[zum vollständigen Text gelangen Sie über die oben angegebene URL], Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2015)

Published
2015
Full Text
View/download PDF

104. Whole-Body [18F]-FDG-PET/MRI for Oncology: A Consensus Recommendation.

Author

Umutlu, Lale, Beyer, Thomas, Grueneisen, Johannes Stefan, Rischpler, Christoph, Quick, Harald H., Veit-Haibach, Patrick, Eiber, Matthias, Purz, Sandra, Antoch, Gerald, Gatidis, Sergios, Nikolaou, Konstantin, Schaefer, Jürgen F., Rausch, Ivo, Herrmann, Ken, Herrmann, K., Krause, B. J., Schoenberg, S. O., Umutlu, L., Anton, F., and Antoch, G.

Published
2019
Full Text
View/download PDF

105. Combined PET/MRI: from Status Quo to Status Go. Summary Report of the Fifth International Workshop on PET/MR Imaging; February 15-19, 2016; Tubingen, Germany

Author

Bailey, D.L., Pichler, B.J., Guckel, B., Barthel, H., Beer, A.J., Botnar, R., Gillies, R., Goh, V., Gotthardt, M., Hicks, R.J., Lanzenberger, R., Fougere, C. la, Lentschig, M., Nekolla, S.G., Niederdraenk, T., Nikolaou, K., Nuyts, J., Olego, D., Riklund, K.A., Signore, A., Schafers, M., Sossi, V., Suminski, M., Veit-Haibach, P., Umutlu, L., Wissmeyer, M., Beyer, T., Bailey, D.L., Pichler, B.J., Guckel, B., Barthel, H., Beer, A.J., Botnar, R., Gillies, R., Goh, V., Gotthardt, M., Hicks, R.J., Lanzenberger, R., Fougere, C. la, Lentschig, M., Nekolla, S.G., Niederdraenk, T., Nikolaou, K., Nuyts, J., Olego, D., Riklund, K.A., Signore, A., Schafers, M., Sossi, V., Suminski, M., Veit-Haibach, P., Umutlu, L., Wissmeyer, M., and Beyer, T.

Abstract

Contains fulltext : 172154.pdf (publisher's version ) (Open Access), This article provides a collaborative perspective of the discussions and conclusions from the fifth international workshop of combined positron emission tomorgraphy (PET)/magnetic resonance imaging (MRI) that was held in Tubingen, Germany, from February 15 to 19, 2016. Specifically, we summarise the second part of the workshop made up of invited presentations from active researchers in the field of PET/MRI and associated fields augmented by round table discussions and dialogue boards with specific topics. This year, this included practical advice as to possible approaches to moving PET/MRI into clinical routine, the use of PET/MRI in brain receptor imaging, in assessing cardiovascular diseases, cancer, infection, and inflammatory diseases. To address perceived challenges still remaining to innovatively integrate PET and MRI system technologies, a dedicated round table session brought together key representatives from industry and academia who were engaged with either the conceptualisation or early adoption of hybrid PET/MRI systems. Discussions during the workshop highlighted that emerging unique applications of PET/MRI such as the ability to provide multi-parametric quantitative and visual information which will enable not only overall disease detection but also disease characterisation would eventually be regarded as compelling arguments for the adoption of PET/MR. However, as indicated by previous workshops, evidence in favour of this observation is only growing slowly, mainly due to the ongoing inability to pool data cohorts from independent trials as well as different systems and sites. The participants emphasised that moving from status quo to status go entails the need to adopt standardised imaging procedures and the readiness to act together prospectively across multiple PET/MRI sites and vendors.

Published
2016

106. 7 T renal MRI: challenges and promises

Author

de Boer, A., Hoogduin, J.M., Blankestijn, P.J., Li, X., Luijten, P.R., Metzger, G.J., Raaijmakers, A.J.E., Umutlu, L., Visser, F., Leiner, T., de Boer, A., Hoogduin, J.M., Blankestijn, P.J., Li, X., Luijten, P.R., Metzger, G.J., Raaijmakers, A.J.E., Umutlu, L., Visser, F., and Leiner, T.

Abstract

The progression to 7 Tesla (7 T) magnetic resonance imaging (MRI) yields promises of substantial increase in signal-to-noise (SNR) ratio. This increase can be traded off to increase image spatial resolution or to decrease acquisition time. However, renal 7 T MRI remains challenging due to inhomogeneity of the radiofrequency field and due to specific absorption rate (SAR) constraints. A number of studies has been published in the field of renal 7 T imaging. While the focus initially was on anatomic imaging and renal MR angiography, later studies have explored renal functional imaging. Although anatomic imaging remains somewhat limited by inhomogeneous excitation and SAR constraints, functional imaging results are promising. The increased SNR at 7 T has been particularly advantageous for blood oxygen level-dependent and arterial spin labelling MRI, as well as sodium MR imaging, thanks to changes in field-strength-dependent magnetic properties. Here, we provide an overview of the currently available literature on renal 7 T MRI. In addition, we provide a brief overview of challenges and opportunities in renal 7 T MR imaging.

Published
2016

107. Combined PET/MRI: from Status Quo to Status Go. Summary Report of the Fifth International Workshop on PET/MR Imaging; February 15-19, 2016; Tubingen, Germany

Author

Bailey, DL, Pichler, BJ, Gueckel, B, Barthel, H, Beer, AJ, Botnar, R, Gillies, R, Goh, V, Gotthardt, M, Hicks, RJ, Lanzenberger, R, la Fougere, C, Lentschig, M, Nekolla, SG, Niederdraenk, T, Nikolaou, K, Nuyts, J, Olego, D, Ahlstrom Riklund, K, Signore, A, Schaefers, M, Sossi, V, Suminski, M, Veit-Haibach, P, Umutlu, L, Wissmeyer, M, Beyer, T, Bailey, DL, Pichler, BJ, Gueckel, B, Barthel, H, Beer, AJ, Botnar, R, Gillies, R, Goh, V, Gotthardt, M, Hicks, RJ, Lanzenberger, R, la Fougere, C, Lentschig, M, Nekolla, SG, Niederdraenk, T, Nikolaou, K, Nuyts, J, Olego, D, Ahlstrom Riklund, K, Signore, A, Schaefers, M, Sossi, V, Suminski, M, Veit-Haibach, P, Umutlu, L, Wissmeyer, M, and Beyer, T

Abstract

This article provides a collaborative perspective of the discussions and conclusions from the fifth international workshop of combined positron emission tomorgraphy (PET)/magnetic resonance imaging (MRI) that was held in Tübingen, Germany, from February 15 to 19, 2016. Specifically, we summarise the second part of the workshop made up of invited presentations from active researchers in the field of PET/MRI and associated fields augmented by round table discussions and dialogue boards with specific topics. This year, this included practical advice as to possible approaches to moving PET/MRI into clinical routine, the use of PET/MRI in brain receptor imaging, in assessing cardiovascular diseases, cancer, infection, and inflammatory diseases. To address perceived challenges still remaining to innovatively integrate PET and MRI system technologies, a dedicated round table session brought together key representatives from industry and academia who were engaged with either the conceptualisation or early adoption of hybrid PET/MRI systems. Discussions during the workshop highlighted that emerging unique applications of PET/MRI such as the ability to provide multi-parametric quantitative and visual information which will enable not only overall disease detection but also disease characterisation would eventually be regarded as compelling arguments for the adoption of PET/MR. However, as indicated by previous workshops, evidence in favour of this observation is only growing slowly, mainly due to the ongoing inability to pool data cohorts from independent trials as well as different systems and sites. The participants emphasised that moving from status quo to status go entails the need to adopt standardised imaging procedures and the readiness to act together prospectively across multiple PET/MRI sites and vendors.

Published
2016

116. Giant Intracranial Aneurysms at 7T MRI

Author

Matsushige, T., primary, Chen, B., additional, Ringelstein, A., additional, Umutlu, L., additional, Forsting, M., additional, Quick, H.H., additional, Sure, U., additional, and Wrede, K.H., additional

Published
2015
Full Text
View/download PDF

127. Predictive impact of the inflammation-based indices in uveal melanoma liver metastases treated with transarterial hepatic chemoperfusion

Author

Ludwig Johannes M., Haubold Johannes, Bauer Sebastian, Richly Heike, Siveke Jens T., Wimmer Julia, Umutlu Lale, Schaarschmidt Benedikt M., and Theysohn Jens M.

Subjects
uveal melanoma, liver metastases, transarterial hepatic chemoperfusion, melphalan, inflammatory markers, Medical physics. Medical radiology. Nuclear medicine, R895-920
Abstract

The aim of the study was to evaluate pretreatment inflammatory markers as prognostic factors in patients with unresectable uveal melanoma liver metastases treated with transarterial hepatic chemoperfusion.

Published
2021
Full Text
View/download PDF

148. Hochaufgelöste 7 Tesla MRT des kleinen Beckens

Author

Beiderwellen, K, primary, Kraff, O, additional, Johst, S, additional, Maderwald, S, additional, Fischer, A, additional, Ladd, ME, additional, Forsting, M, additional, Lauenstein, TC, additional, and Umutlu, L, additional

Published
2013
Full Text
View/download PDF

149. Imaging with I in differentiated thyroid carcinoma: is PET/MRI superior to PET/CT?

Author

Binse, I., Poeppel, T., Ruhlmann, M., Gomez, B., Umutlu, L., Bockisch, A., and Rosenbaum-Krumme, S.

Subjects
THYROID cancer diagnosis, POSITRON emission tomography, COMPUTED tomography, MAGNETIC resonance imaging, DIAGNOSTIC imaging research, RADIOACTIVE tracers, IODINE isotopes
Abstract

Purpose: The aim of this study was to compare integrated PET/CT and PET/MRI for their usefulness in detecting and categorizing cervical iodine-positive lesions in patients with differentiated thyroid cancer using I as tracer. Methods: The study group comprised 65 patients at high risk of iodine-positive metastasis who underwent PET/CT (low-dose CT scan, PET acquisition time 2 min; PET/CT) followed by PET/MRI of the neck 24 h after I administration. PET images from both modalities were analysed for the numbers of tracer-positive lesions. Two different acquisition times were used for the comparisons, one matching the PET/CT acquisition time (2 min, PET/MRI) and the other covering the whole MRI scan time (30 min, PET/MRI). Iodine-positive lesions were categorized as metastasis, thyroid remnant or inconclusive according to their location on the PET/CT images. Morphological information provided by MRI was considered for evaluation of lesions on PET/MRI and for volume information. Results: PET/MRI detected significantly more iodine-positive metastases and thyroid remnants than PET/CT (72 vs. 60, p = 0.002, and 100 vs. 80, p = 0.001, respectively), but the numbers of patients with at least one tumour lesion identified were not significantly different (21/65 vs. 17/65 patients). PET/MRI tended to detect more PET-positive metastases than PET/MRI (88 vs. 72), but the difference was not significant ( p = 0.07). Of 21 lesions classified as inconclusive on PET/CT, 5 were assigned to metastasis or thyroid remnant when evaluated by PET/MRI. Volume information was available in 34 % of iodine-positive metastases and 2 % of thyroid remnants on PET/MRI. Conclusions: PET/MRI of the neck was found to be superior to PET/CT in detecting iodine-positive lesions. This was attributed to the higher sensitivity of the PET component, Although helpful in some cases, we found no substantial advantage of PET/MRI over PET/CT in categorizing iodine-positive lesions as either metastasis or thyroid remnant. Volume information provided by MRI for some iodine-positive lesions might be useful in dosimetry. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results