Phantom maps and chromatic phantom maps [PDF]
American Journal of Mathematics, 1998 In the first part, we determine conditions on spectra X and Y under which either every map from X to Y is phantom, or no nonzero maps are. We also address the question of whether such all or nothing behaviour is preserved when X is replaced with V smash ...
Christensen, J. Daniel, Mark Hovey
core +6 more sources
Automatic hand phantom map generation and detection using decomposition support vector machines [PDF]
BioMedical Engineering OnLine, 2018 Background There is a need for providing sensory feedback for myoelectric prosthesis users. Providing tactile feedback can improve object manipulation abilities, enhance the perceptual embodiment of myoelectric prostheses and help reduce phantom limb ...
Huaiqi Huang +6 more
doaj +2 more sources
Evaluation of precalculated attenuation correction map for preclinical cardiac PET/MR using a 1H/23Na surface coil [PDF]
EJNMMI PhysicsBackground In preclinical PET/MR, attenuation correction (AC) uses a mix of pre-calculated attenuation maps accounting for animal cradles and organ segmentation obtained from whole-body MR using a volume coil.
Hanan Rida +6 more
doaj +2 more sources
Creation of sensory phantom map of hand using VR robotic system: initial case series
Brain and Spine, 2022 D. Dimante +5 more
doaj +2 more sources
Image reconstruction of proton computed tomography modelled by Geant4 Monte Carlo toolkit [PDF]
مجله علوم و فنون هستهای, 2021 Accuracy in the treatment planning of proton therapy depends on the accuracy of the information used to calculate the relative stopping power of tissues in the patient's body.
E. Alibeigi +3 more
doaj +1 more source
UAV application to estimate oil palm trees health using Visible Atmospherically Resistant Index (VARI) (Case study of Cikabayan Research Farm, Bogor City) [PDF]
E3S Web of Conferences, 2020 This article describes the making of an oil palm tree health map using aerial photos extracted from UAV DJI Phantom 4. A DJI Phantom 4 was flown at 100 meters height at the Cikabayan Research Farm, Bogor City.
Nur Anisa Medina +2 more
doaj +1 more source
An Improved Method of Automated Noise Measurement System in CT Images [PDF]
Journal of Biomedical Physics and Engineering, 2021 Background: It is necessary to have an automated noise measurement system working accurately to optimize dose in computerized tomography (CT) examinations.Objective: This study aims to develop an algorithm to automate noise measurement that can be ...
Choirul Anam +9 more
doaj +1 more source
Mapping the average speed of sound in synthetic aperture ultrasound imaging [PDF]
JASA Express Letters, 2022 A method to map the average speed of sound in a heterogeneous medium was proposed. First, an equation was derived relating the phase aberration to the average speed of sound. Then, this equation was applied to study the average speed in a uniform phantom
Dena Monjazebi, Yuan Xu
doaj +1 more source
A novel tissue-mimicking phantom for US/CT/MR-guided tumor puncture and thermal ablation
International Journal of Hyperthermia, 2022 Aim This study aimed to develop a novel tumor-bearing tissue phantom model that can be used for US/CT/MR-guided tumor puncture and thermal ablation.Methods The phantom model comprised two parts: a normal tissue-mimicking phantom and a tumor-mimicking ...
Xinyu Zhong +4 more
doaj +1 more source
EJNMMI Physics, 2022 Background Anthropomorphic torso phantoms, including a cardiac insert, are frequently used to investigate the imaging performance of SPECT and PET systems.
Janos Kiss +6 more
doaj +1 more source