Milán Vecsey-Nagy
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View article: Low-field and portable MRI technology: advancements and innovations
Low-field and portable MRI technology: advancements and innovations Open
Recent advances in magnetic resonance imaging (MRI) hardware and software have renewed interest in low-field MRI, challenging the long-held notion that such systems are inherently inferior to high-field counterparts. Traditionally dismisse…
View article: Stenosis quantification in high-pitch photon-counting coronary CT angiography: in vitro and in vivo impact of reconstruction kernel types and sharpness levels
Stenosis quantification in high-pitch photon-counting coronary CT angiography: in vitro and in vivo impact of reconstruction kernel types and sharpness levels Open
Background We investigated the influence of different kernel types and sharpness levels on in vitro and in vivo coronary stenosis quantification in high-pitch photon-counting detector coronary CT angiography (PCD-CCTA). Materials and metho…
View article: Semiquantitative metrics of coronary artery disease burden: Intra-individual comparison between ultrahigh-resolution photon-counting detector CT and energy-integrating detector CT
Semiquantitative metrics of coronary artery disease burden: Intra-individual comparison between ultrahigh-resolution photon-counting detector CT and energy-integrating detector CT Open
View article: Accuracy of a deep neural network for automated pulmonary embolism detection on dedicated CT pulmonary angiograms
Accuracy of a deep neural network for automated pulmonary embolism detection on dedicated CT pulmonary angiograms Open
The proposed DNN-based algorithm provides excellent performance for the detection of PE, suggesting its potential utility to support radiologists in clinical reading and exam prioritization.
View article: Influence of virtual monoenergetic reconstructions on coronary CT angiography-based fractional flow reserve with photon-counting detector CT: intra-individual comparison with energy-integrating detector CT
Influence of virtual monoenergetic reconstructions on coronary CT angiography-based fractional flow reserve with photon-counting detector CT: intra-individual comparison with energy-integrating detector CT Open
View article: Temporal changes and implications of diffusion tensor imaging metrics and cerebral white matter volume in patients undergoing carotid endarterectomy - a prospective study
Temporal changes and implications of diffusion tensor imaging metrics and cerebral white matter volume in patients undergoing carotid endarterectomy - a prospective study Open
The increase of various DTI metrics from pre-to-postoperative may be indicative of microstructural deterioration following CEA. Temporal changes between the immediate and late postoperative scans suggest, however, reversal of detrimental W…
View article: Prognostic and therapeutic implications of a low aortic valve calcium score in patients with low-gradient aortic stenosis
Prognostic and therapeutic implications of a low aortic valve calcium score in patients with low-gradient aortic stenosis Open
Aims Low-gradient (LG) aortic stenosis (AS) poses a diagnostic challenge. Aortic valve calcium score (AVCS) assessment has emerged as a complementary diagnostic method when echocardiography provides discordant results. However, the diagnos…
View article: Gadolinium-based coronary CT angiography on a clinical photon-counting-detector system: a dynamic circulating phantom study
Gadolinium-based coronary CT angiography on a clinical photon-counting-detector system: a dynamic circulating phantom study Open
View article: Intra-individual comparison of epicardial adipose tissue characteristics on coronary CT angiography between photon-counting detector and energy-integrating detector CT systems
Intra-individual comparison of epicardial adipose tissue characteristics on coronary CT angiography between photon-counting detector and energy-integrating detector CT systems Open
EAT attenuation and volume measurements demonstrated different absolute values between PCD-UHR, PCD-DS as well as EID-CT reconstructions, but showed similar tendencies on an intra-individual level. New protocols and threshold ranges need t…
View article: Accuracy of ultra-high resolution and virtual non-calcium reconstruction algorithm for stenosis evaluation with photon-counting CT: results from a dynamic phantom study
Accuracy of ultra-high resolution and virtual non-calcium reconstruction algorithm for stenosis evaluation with photon-counting CT: results from a dynamic phantom study Open
Background We compared ultra-high resolution (UHR), standard resolution (SR), and virtual non-calcium (VNCa) reconstruction for coronary artery stenosis evaluation using photon-counting computed tomography (PC-CT). Methods One vessel phant…
View article: Intraindividual reproducibility of myocardial radiomic features between energy-integrating detector and photon-counting detector CT angiography
Intraindividual reproducibility of myocardial radiomic features between energy-integrating detector and photon-counting detector CT angiography Open
View article: The Circle of Willis Status Influences Neurological Complications of Carotid Endarterectomy with Contralateral Carotid Occlusion
The Circle of Willis Status Influences Neurological Complications of Carotid Endarterectomy with Contralateral Carotid Occlusion Open
Patients with CCO and insufficient CoW collateral flow support are at an increased risk of INE, including stroke, in the absence of shunt protection during CEA cross-clamping. Shunting should always be considered when the collateral flow b…
View article: Prospective ECG-gated High-Pitch Photon-Counting CT Angiography: Evaluation of measurement accuracy for aortic annulus sizing in TAVR planning
Prospective ECG-gated High-Pitch Photon-Counting CT Angiography: Evaluation of measurement accuracy for aortic annulus sizing in TAVR planning Open
PCD-CT-based prospective ECG-gated high-pitch scans with targeted systolic acquisition at the level of the aortic valve can simultaneously visualize TAVR access routes and accurately measure systolic annulus size. This approach could aid i…
View article: Impact of reconstruction parameters on the accuracy of myocardial extracellular volume quantification on a first-generation, photon-counting detector CT
Impact of reconstruction parameters on the accuracy of myocardial extracellular volume quantification on a first-generation, photon-counting detector CT Open
View article: Contralateral Carotid Occlusion With Insufficient Circle of Willis is Associated With a Higher Incidence of Neurologic Events During Carotid Endarterectomy Without Shunting
Contralateral Carotid Occlusion With Insufficient Circle of Willis is Associated With a Higher Incidence of Neurologic Events During Carotid Endarterectomy Without Shunting Open
View article: Artificial Intelligence Provides Accurate Quantification of Thoracic Aortic Enlargement and Dissection in Chest CT
Artificial Intelligence Provides Accurate Quantification of Thoracic Aortic Enlargement and Dissection in Chest CT Open
This study evaluated a deep neural network (DNN) algorithm for automated aortic diameter quantification and aortic dissection detection in chest computed tomography (CT). A total of 100 patients (median age: 67.0 [interquartile range 55.3/…
View article: The impact of increasing saline flush volume to reduce the amount of residual air in the delivery system of aortic prostheses—a randomized controlled trial
The impact of increasing saline flush volume to reduce the amount of residual air in the delivery system of aortic prostheses—a randomized controlled trial Open
Background Air embolism is a known risk during thoracic endovascular aortic repair (TEVAR) and is associated with an incomplete deairing of the delivery system despite the saline lavage recommended by the instructions for use (IFU). As the…
View article: Effect of Body Mass Index on Effectiveness of CT versus Invasive Coronary Angiography in Stable Chest Pain: The DISCHARGE Trial
Effect of Body Mass Index on Effectiveness of CT versus Invasive Coronary Angiography in Stable Chest Pain: The DISCHARGE Trial Open
Background Recent trials support the role of cardiac CT in the evaluation of symptomatic patients suspected of having coronary artery disease (CAD); however, body mass index (BMI) has been reported to negatively impact CT image quality. Pu…
View article: Table of contents-4C
Table of contents-4C Open
View article: Intra-individual comparison of coronary CT angiography-based FFR between energy-integrating and photon-counting detector CT systems
Intra-individual comparison of coronary CT angiography-based FFR between energy-integrating and photon-counting detector CT systems Open
CT-FFR evaluation is feasible with PCD-CT and it shows a strong agreement with EID-CT-based evaluation when images are similarly reconstructed.
View article: Dynamic Perfusion Computed Tomography for the Assessment of Concomitant Coronary Artery Disease in Patients with a History of Percutaneous Transluminal Angioplasty for Chronic Limb-Threatening Ischemia—A Pilot Study
Dynamic Perfusion Computed Tomography for the Assessment of Concomitant Coronary Artery Disease in Patients with a History of Percutaneous Transluminal Angioplasty for Chronic Limb-Threatening Ischemia—A Pilot Study Open
Background: Chronic limb-threatening ischemia (CLTI) is associated with high rates of long-term cardiovascular mortality. Exercise stress testing to detect obstructive coronary artery disease (CAD) can be difficult in this subset of patien…
View article: Low-attenuation coronary plaque burden and troponin release in chronic coronary syndrome: A mediation analysis
Low-attenuation coronary plaque burden and troponin release in chronic coronary syndrome: A mediation analysis Open
Although ischemia and inflammation have previously been proposed to mediate the association between LAP burden and hs-cTnT levels, our results did not confirm the role of these pathophysiological pathways in patients with stable chest pain.
View article: Calcium scoring on coronary computed angiography tomography with photon-counting detector technology: Predictors of performance
Calcium scoring on coronary computed angiography tomography with photon-counting detector technology: Predictors of performance Open
View article: Impact of virtual monoenergetic levels on coronary plaque volume components using photon-counting computed tomography
Impact of virtual monoenergetic levels on coronary plaque volume components using photon-counting computed tomography Open
Objectives Virtual monoenergetic images (VMIs) from photon-counting CT (PCCT) may change quantitative coronary plaque volumes. We aimed to assess how plaque component volumes change with respect to VMIs. Methods Coronary CT angiography (CT…
View article: The impact of increasing saline flush volume to reduce the amount of residual air in the delivery system of aortic prostheses – a randomized controlled trial
The impact of increasing saline flush volume to reduce the amount of residual air in the delivery system of aortic prostheses – a randomized controlled trial Open
Air embolism during thoracic endovascular aortic repair (TEVAR) is associated to an incomplete deairing of the delivery system (DS) despite the saline lavage recommended by the instructions for use (IFU). As the DSs are identical, endovasc…
View article: A Propensity-Matched Comparison of Ischemic Brain Lesions on Postprocedural MRI in Endovascular versus Open Carotid Artery Reconstruction
A Propensity-Matched Comparison of Ischemic Brain Lesions on Postprocedural MRI in Endovascular versus Open Carotid Artery Reconstruction Open
(1) Study purpose: The aim of our prospective single-center, matched case–control study was to compare the number and volume of acute ischemic brain lesions following carotid endarterectomy (CEA) versus carotid artery stenting (CAS) using …
View article: Photon counting detector CT can identify mild coronary artery in-stent restenosis more reliably
Photon counting detector CT can identify mild coronary artery in-stent restenosis more reliably Open
Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Cardiovascular Imaging Research Group, Medical Imaging Centre, Semmelweis University. Introduction The improved spatial resol…
View article: The relationship between troponin T and plaque burden in patients with stable chest pain
The relationship between troponin T and plaque burden in patients with stable chest pain Open
Funding Acknowledgements Type of funding sources: None. Introduction Certain laboratory parameters of patients presenting with stable chest pain may also have clinical utility in estimating individual cardiovascular (CV) risk in addition t…
View article: Photon-counting detector CT enables more precise assessment of coronary artery stenosis
Photon-counting detector CT enables more precise assessment of coronary artery stenosis Open
Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Hungarian Academy of Sciences. Introduction In contrast to conventional energy-integrating detectors, photon-counting detecto…
View article: Changes in coronary plaque component volumes comparing different virtual monoenergetic images using photon-counting computed tomography
Changes in coronary plaque component volumes comparing different virtual monoenergetic images using photon-counting computed tomography Open
Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): BV was supported by the ÚNKP-22-3-II-SE New National Excellence Program of the Ministry for Culture and Innovation from the s…