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Reconstruction of positron emission tomography images using adaptive sliced remeshing strategy
(Society of Photo-Optical Instrumentation Engineers, 2021-03)
Purpose: The reconstruction of positron emission tomography images is a computationally intensive task which benefits from the use of increasingly complex physical models. Aiming to reduce the computational burden by means ...
Improved Discrimination of Myocardial Perfusion Defects at Low Energy Levels Using Virtual Monochromatic Imaging
(Lippincott Williams, 2017-07)
Objectives: The aim of this study was to explore the diagnostic performance of dual-energy computed tomography perfusion (DE-CTP) at different energy levels. Methods: Patients with known or suspected coronary artery disease ...
Alteraciones en el SPECT cerebral antes del inicio de la enfermedad de Alzheimer precoz producida por la mutación E280A de la presenilina-1
(Asociación Colombiana de Medicina InternaGrupo de Neurociencias de AntioquiaBogotá, Colombia, 2021)
Towards a whole body [18F] FDG positron emission tomography attenuation correction map synthesizing using deep neural networksHacia la sinterización de mapas de atenuación de cuerpo completo para tomografía por emisión de positrones de [18F] FDG usando redes neuronales profundas
(Universidad Nacional de La Plata. Facultad de Informática, 2021-04)
The correction of attenuation effects in Positron Emission Tomography (PET) imaging is fundamental to ob-tain a correct radiotracer distribution. However direct measurement of this attenuation map is not error-free and ...
Heuristic method for photo-detectors localization over continuous crystal scintillation cameras
(Universidad Nacional de La Plata. Facultad de Informática, 2018-04-25)
The construction process of large scintillation cameras with continuous crystals is a complex problem affected by multiple variables, from the physical construction of the scintillation crystal to the dispersion in the ...
Improved particle swarm optimization algorithm applied to rigid registration in medical images
(Springer Verlag Berlín, 2017-04)
Image registration is a space-temporary correlation process that allows comparison and/or image matching. This process has value into medical area when it comes to compare images acquired by different modalities or in ...
Chronic Lead Exposure Alters Mineral Properties in Alveolar Bone
(MDPI, 2021-06)
The objective of the present study was to investigate the effects of chronic lead exposure on the mineral properties of alveolar bone. For this purpose, female Wistar rats (n = 8) were exposed to 1000 ppm lead acetate in ...
Scaling laws of quiet-Sun coronal loops
(Elsevier, 2019-08)
We study a series of relations between physical parameters in coronal loops of the quiet Sun reconstructed by combining tomographic techniques and modeling of the coronal magnetic field. We use differential emission measure ...