User profiles for Maikol Salas-Ramirez

Maikol Salas Ramirez

Medical Physicist in Nuclear Medicine, University Hospital of Würzburg
Verified email at ukw.de
Cited by 74

Quantification of fat fraction in lumbar vertebrae: correlation with age and implications for bone marrow dosimetry in molecular radiotherapy

M Salas-Ramirez, J Tran-Gia… - Physics in Medicine …, 2018 - iopscience.iop.org
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 …

What you see is not what you get: on the accuracy of voxel-based dosimetry in molecular radiotherapy

J Tran-Gia, M Salas-Ramirez… - Journal of Nuclear …, 2020 - Soc Nuclear 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 …

[HTML][HTML] Quantification of the volume fraction of fat, water and bone mineral in spongiosa for red marrow dosimetry in molecular radiotherapy by using a dual-energy …

M Salas-Ramirez, M Lassmann, J Tran-Gia - Zeitschrift für Medizinische …, 2022 - Elsevier
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 …

[HTML][HTML] Analysis of a deep learning-based method for generation of SPECT projections based on a large Monte Carlo simulated dataset

J Leube, J Gustafsson, M Lassmann, M Salas-Ramirez… - EJNMMI physics, 2022 - Springer
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 …

[PDF][PDF] Calibración de una sonda de captación para la monitorización del Personal Ocupacionalmente Expuesto

EM Ramírez, M Salas-Ramírez - Alasbim Journal. Contribución …, 2015 - researchgate.net
131 energy window was between 28 keV (channel 146) and 433 keV (channel 218). The I
equivalent activity was determined by 5 measurements of 5 minutes each one, also the …

[HTML][HTML] Radiation-induced double-strand breaks by internal ex vivo irradiation of lymphocytes: Validation of a Monte Carlo simulation model using GATE and Geant4 …

M Salas-Ramirez, L Maigne, G Fois… - … für Medizinische Physik, 2023 - Elsevier
This study describes a method to validate a radiation transport model that quantifies the
number of DNA double-strand breaks (DSB) produced in the lymphocyte nucleus by internal ex …

[HTML][HTML] GATE/Geant4-based dosimetry for ex vivo in solution irradiation of blood with radionuclides

M Salas-Ramirez, M Lassmann, U Eberlein - Zeitschrift für Medizinische …, 2023 - Elsevier
Maikol Salas Ramirez, Michael Lassmann and Uta Eberlein designed the study and
developed the methodology. Maikol Salas Ramirez performed the calculations of the absorbed …

Quantification of the trabecular bone volume fraction for bone marrow dosimetry in molecular radiotherapy by using a dual-energy (SPECT/) CT

M Salas-Ramirez, J Tran-Gia, U Gbureck… - Physics in Medicine …, 2019 - iopscience.iop.org
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 …

[HTML][HTML] Effect of kilovoltage and quality reference mAs on CT-based attenuation correction in 177Lu SPECT/CT imaging: a phantom study

M Salas-Ramirez, J Leube, M Lassmann, J Tran-Gia - EJNMMI physics, 2024 - Springer
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 …

[PDF][PDF] RADIATION PROTECTION RECOMMENDATIONS FOR RELEASING PATIENTS TREATED WITH 131I FOR THYROID CANCER: A PATIENT SPECIFIC …

E Mora-Ramirez, M Salas-Ramirez - researchgate.net
The Nuclear Medicine Department at the San Juan de Dios Hospital has considered radiation
protection guidelines given by the IAEA for releasing patients after 131I treatments for …