Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Maikol Salas-Ramirez"'
Autor:
Julian Leube, Wies Claeys, Johan Gustafsson, Maikol Salas-Ramirez, Michael Lassmann, Michel Koole, Johannes Tran-Gia
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-20 (2024)
Abstract Background Although the importance of quantitative SPECT has increased tremendously due to newly developed therapeutic radiopharmaceuticals, there are still no accreditation programs to harmonize SPECT imaging. Work is currently underway to
Externí odkaz:
https://doaj.org/article/40409978bf78464483fe6377b9b9ad6e
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-16 (2024)
Abstract Introduction CT-based attenuation correction (CT-AC) plays a major role in accurate activity quantification by SPECT/CT imaging. However, the effect of kilovoltage peak (kVp) and quality-reference mAs (QRM) on the attenuation coefficient ima
Externí odkaz:
https://doaj.org/article/79368105d02a4f0f97d780c38ee6b765
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 33, Iss 1, Pp 46-53 (2023)
To establish a dose-response relationship between radiation-induced DNA damage and the corresponding absorbed doses in blood irradiated with radionuclides in solution under ex vivo conditions, the absorbed dose coefficient for 1 ml for 1 h internal e
Externí odkaz:
https://doaj.org/article/0caeec4e360e471c813273fdc3389942
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 32, Iss 4, Pp 428-437 (2022)
A patient-specific absorbed dose calculation for red marrow dosimetry requires quantifying patient-specific volume fractions of the red marrow, yellow marrow, and trabecular bone in the spongiosa of several skeletal sites. This quantification allows
Externí odkaz:
https://doaj.org/article/e7132f480aae44ec914568d42477f507
Publikováno v:
EJNMMI Physics, Vol 9, Iss 1, Pp 1-20 (2022)
Abstract Background In recent years, a lot of effort has been put in the enhancement of medical imaging using artificial intelligence. However, limited patient data in combination with the unavailability of a ground truth often pose a challenge to a
Externí odkaz:
https://doaj.org/article/eacaf193dac84b61a053cb8f7ac7bf02
Publikováno v:
60. Jahrestagung der Deutschen Gesellschaft für Nuklearmedizin.
To establish a dose-response relationship between radiation-induced DNA damage and the corresponding absorbed doses in blood irradiated with radionuclides in solution under ex vivo conditions, the absorbed dose coefficient for 1 ml for 1 h internal e
What You See Is Not What You Get: On the Accuracy of Voxel-Based Dosimetry in Molecular Radiotherapy
Publikováno v:
J Nucl Med
Improvements in quantitative SPECT/CT have aroused growing interest in voxel-based dosimetry for radionuclide therapies, because it promises visualization of absorbed doses at a voxel level. In this work, SPECT/CT-based voxel-level dosimetry of a 3-d
Publikováno v:
Physics in Medicine & Biology. 65:029501
Publikováno v:
Physics in Medicine & Biology. 64:205014
A complete characterization of spongiosa (bone marrow plus trabecular bone) is required to calculate the absorbed dose to active bone marrow. Due to the complex microanatomy, it is necessary to apply non-conventional imaging methods in nuclear medici
Autor:
Johannes Tran-Gia, Anke Heidemeier, Maikol Salas-Ramirez, Christian Kesenheimer, Aleksander Kosmala, Michael Lassmann, Herbert Köstler, Andreas Max Weng
Publikováno v:
Physics in Medicine & Biology. 63:025029
Absorbed dose to active bone marrow is a predictor of hematological toxicity in molecular radiotherapy. Due to the complex composition of bone marrow tissue, the necessity to improve the personalized dosimetry has led to the application of non-conven