Jenia Vassileva
International Atomic Energy Agency
Imaging phantomRadiologyEffective dose (radiation)KermaRadiological weaponMedical physicsFluoroscopyRadiation protectionMammographyInterventional cardiologyRadiation doseNuclear medicinePatient doseMedical imagingRadiographyInterventional radiologyComputed tomographyImage qualityMedicineDosimetry
90Publications
15H-index
843Citations
Publications 93
Newest
#1Jenia VassilevaH-Index: 15
#2Anna ZagorskaH-Index: 1
Last. Alberto TrinchieriH-Index: 27
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#1Shivam Rastogi (Harvard University)H-Index: 3
#2Ramandeep Singh (Harvard University)H-Index: 10
Last. Mannudeep K. Kalra (Harvard University)H-Index: 64
view all 22 authors...
Purpose:To assess the frequency, appropriateness, and radiation doses associated with multiphase computed tomography (CT) protocols for routine chest and abdomen–pelvis examinations in 18 countries...
5 CitationsSource
#1Jenia Vassileva (IAEA: International Atomic Energy Agency)H-Index: 15
#2Ola HolmbergH-Index: 10
This review summarises the current knowledge about recurrent radiological imaging and associated cumulative doses to patients. The recent conservative estimates are for around 0.9 million patients ...
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#1Jenia VassilevaH-Index: 15
#1A. SkolarikosH-Index: 2
Last. Kemal SaricaH-Index: 29
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#2Sergey MorozovH-Index: 9
Last. Jenia Vassileva (IAEA: International Atomic Energy Agency)H-Index: 15
view all 5 authors...
On March 11, 2020, the World Health Organization declared the coronavirus disease 2019 (COVID-19) pandemic. The expert organisations recommend more cautious use of thoracic computed tomography (CT), opting for low-dose protocols. We aimed at determining a threshold value of automatic tube current modulation noise index below which there is a chance to miss an onset of ground-glass opacities (GGO) in COVID-19. A team of radiologists and medical physicists performed 25 phantom CT studies using dif...
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#1Jenia Vassileva (IAEA: International Atomic Energy Agency)H-Index: 15
#2Anna ZagorskaH-Index: 1
Last. Emrah Yuruk (Gazeta Tema)H-Index: 2
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Introduction: Fluoroscopy-guided endourology procedures require proper radiation protection to minimize radiation risk. This multicenter study aimed at investigating radiation protection practice a...
1 CitationsSource
#1Shadi Ebrahimian (Harvard University)H-Index: 5
#2Mônica Oliveira Bernardo (PUC-SP: Pontifícia Universidade Católica de São Paulo)H-Index: 2
Last. Mannudeep K. Kalra (Harvard University)H-Index: 64
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Abstract Purpose Optimization of CT scan practices can help achieve and maintain optimal radiation protection. The aim was to assess centering, scan length, and positioning of patients undergoing chest CT for suspected or known COVID-19 pneumonia and to investigate their effect on associated radiation doses. Methods With respective approvals from institutional review boards, we compiled CT imaging and radiation dose data from four hospitals belonging to four countries (Brazil, Iran, Italy, and U...
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#1John Damilakis (UoC: University of Crete)H-Index: 44
#2Jenia Vassileva (IAEA: International Atomic Energy Agency)H-Index: 15
Abstract Diagnostic Reference Levels (DRLs) is an important tool that can improve radiation safety in medical imaging. However, there are certain aspects that need improvement and several obstacles that should be overcome before DRLs are fully implemented in practice. It is the authors belief that DRLs should be a dynamic tool that follows the development of clinical practice and technology advances. The establishment of adult and paediatric DRLs based on clinical indications should be considere...
1 CitationsSource
#1Fatemeh Homayounieh (Harvard University)H-Index: 8
#2Ola Holmberg (IAEA: International Atomic Energy Agency)H-Index: 10
Last. Jenia VassilevaH-Index: 15
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Background There is lack of guidance on specific CT protocols for imaging patients with coronavirus disease 2019 (COVID-19) pneumonia. Purpose To assess international variations in CT utilization, protocols, and radiation doses in patients with COVID-19 pneumonia. Materials and Methods In this retrospective data collection study, the International Atomic Energy Agency (IAEA) coordinated a survey between May and July 2020 regarding CT utilization, protocols, and radiation doses from 62 healthcare...
9 CitationsSource
#1Cole B Hirschfeld (NewYork–Presbyterian Hospital)H-Index: 2
#2Maurizio Dondi (IAEA: International Atomic Energy Agency)H-Index: 23
Last. J. WealeH-Index: 1
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Abstract Objectives This study sought to establish worldwide and regional diagnostic reference levels (DRLs) and achievable administered activities (AAAs) for single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI). Background Reference levels serve as radiation dose benchmarks to compare individual laboratories against aggregated data, helping to identify sites in greatest need of dose reduction interventions. DRLs for SPECT MPI have previously been derived from na...
5 CitationsSource