Search

Your search keyword '"Monaghan, Mark"' showing total 1,101 results
Start Over Author "Monaghan, Mark"

Refine your results

more »

more »

more »

more »

more »

more »
1,101 results on '"Monaghan, Mark"'

209. Comparison of NICE and ESC proposed strategies on new onset chest pain and the contemporary clinical utility of pretest probability risk score

Author

Papachristidis, Alexandros, primary, Vaughan, George Frederick, additional, Denny, Sarah J, additional, Akbari, Tamim, additional, Avornyo, Edith, additional, Griffiths, Tracey, additional, Saunders, Emma, additional, Byrne, Jonathan, additional, Monaghan, Mark J, additional, and Al Fakih, Khaled, additional

Published
2020
Full Text
View/download PDF

211. Pulmonary valve papillary fibroelastoma

Author

Papasaikas, Dimitrios, primary, Theodoropoulos, Konstantinos C., additional, Zaheer, Aneel, additional, Baghai, Max, additional, Monaghan, Mark J., additional, and Papachristidis, Alexandros, additional

Published
2020
Full Text
View/download PDF

212. On Component Reliability and System Reliability for Space Missions

Author

Chen, Yuan, Gillespie, Amanda M, Monaghan, Mark W, Sampson, Michael J, and Hodson, Robert F

Subjects
Quality Assurance And Reliability
Abstract

This paper is to address the basics, the limitations and the relationship between component reliability and system reliability through a study of flight computing architectures and related avionics components for NASA future missions. Component reliability analysis and system reliability analysis need to be evaluated at the same time, and the limitations of each analysis and the relationship between the two analyses need to be understood.

Published
2012

214. Core Competencies in Echocardiography for Imaging Structural Heart Disease Interventions

Author

Hahn, Rebecca T., primary, Mahmood, Feroze, additional, Kodali, Susheel, additional, Lang, Roberto, additional, Monaghan, Mark, additional, Gillam, Linda D., additional, Swaminathan, Madhav, additional, Bonow, Robert O., additional, von Bardeleben, Ralph Stephan, additional, Bax, Jeroen J., additional, Grayburn, Paul, additional, Zoghbi, William A., additional, Sengupta, Partho P., additional, Chandrashekhar, Y., additional, and Little, Stephen H., additional

Published
2019
Full Text
View/download PDF

215. Similarities and Differences in Left Ventricular Size and Function among Races and Nationalities: Results of the World Alliance Societies of Echocardiography Normal Values Study

Author

Asch, Federico M., primary, Miyoshi, Tatsuya, additional, Addetia, Karima, additional, Citro, Rodolfo, additional, Daimon, Masao, additional, Desale, Sameer, additional, Fajardo, Pedro Gutierrez, additional, Kasliwal, Ravi R., additional, Kirkpatrick, James N., additional, Monaghan, Mark J., additional, Muraru, Denisa, additional, Ogunyankin, Kofo O., additional, Park, Seung Woo, additional, Ronderos, Ricardo E., additional, Sadeghpour, Anita, additional, Scalia, Gregory M., additional, Takeuchi, Masaaki, additional, Tsang, Wendy, additional, Tucay, Edwin S., additional, Tude Rodrigues, Ana Clara, additional, Vivekanandan, Amuthan, additional, Zhang, Yun, additional, Blitz, Alexandra, additional, Lang, Roberto M., additional, Prado, Aldo D., additional, Filipini, Eduardo, additional, Kwon, Agatha, additional, Hoschke-Edwards, Samantha, additional, Afonso, Tania Regina, additional, Thampinathan, Babitha, additional, Sooriyakanthan, Maala, additional, Zhu, Tiangang, additional, Wang, Zhilong, additional, Wang, Yingbin, additional, Zhang, Mei, additional, Zhang, Yu, additional, Yin, Lixue, additional, Li, Shuang, additional, Alagesan, R., additional, Balasubramanian, S., additional, Ananth, R.V.A., additional, Bansal, Manish, additional, Badano, Luigi P., additional, Palermo, Chiara, additional, Bossone, Eduardo, additional, Di Vece, Davide, additional, Bellino, Michele, additional, Nakao, Tomoko, additional, Kawata, Takayuki, additional, Hirokawa, Megumi, additional, Sawada, Naoko, additional, Nabeshima, Yousuke, additional, Yun, Hye Rim, additional, Hwang, Ji-won, additional, Fasawe, Dolapo, additional, Schreckenberg, Marcus, additional, Ronderos, Ricardo, additional, Scalia, Gregory, additional, Amuthan, V., additional, Kasliwal, Ravi, additional, Gutierrez-Fajardo, Pedro, additional, Woo Park, Seung, additional, and Kirkpatrick, James, additional

Published
2019
Full Text
View/download PDF

216. The Effects of Hydrostatic Pressure on the Subharmonic Response of SonoVue and Sonazoid

Author

Gupta, Ipshita, primary, Fuster, Daniel, additional, Eckersley, Robert J., additional, Lamata, Pablo, additional, Forsberg, Flemming, additional, Nio, Amanda Q. X., additional, Faraci, Alessandro, additional, Torkzaban, Mehnoosh, additional, Christensen-Jeffries, Kirsten, additional, Nam, Kibo, additional, Raymond, Jason L., additional, Wallace, Kirk, additional, and Monaghan, Mark J., additional

Published
2019
Full Text
View/download PDF

217. Comparison Modeling of System Reliability for Future NASA Projects

Author

Gillespie, Amanda M, Monaghan, Mark W, and Chen, Yuan

Subjects
Quality Assurance And Reliability
Abstract

A National Aeronautics and Space Administration (NASA) supported Reliability, Maintainability, and Availability (RMA) analysis team developed a unique RMA analysis methodology using cut set and importance measure analysis in order to comparison model proposed avionics computing architectures. In this paper we will present this efficient application of the RMA analysis methodology for importance measures that includes Reliability Block Diagram (RED) Analysis, Comparison modeling, Cut Set Analysis, and Importance Measure Analysis. We will also demonstrate that integrating RMA early in the system design process as a key to success by providing a fundamental decision metric supporting design selection. The RMA analysis methodology presented in this paper and applied to the avionics architectures enhances the usual way of predicting the need for redundancy based on failure rates or subject matter expert opinion. Using the REDs and the minimal cut sets, along with the Fussell-Vesely (FV) factors, importance measures are calculated for each functional element in the architectures. This paper presents an application of the FV importance measures and presents an improved methodology for using importance measures in success space (instead of failure space) to compare architectures. These importance measures are used to determine which functional element would be most likely to cause a system failure, thus, quickly identifying the path to increase the overall system reliability by either procuring more reliable functional elements or adding redundancy. This application of the RMA analysis methodology, using RBD analysis, cut set analysis, and the importance measure analysis, allows the avionics design team to better understand and compare the vulnerabilities in each of the architectures, enabling them to address the deficiencies in the design architectures more efficiently, while balancing the need to design for optimum weight and space allocations.

Published
2011

221. Detection of coronary artery disease with perfusion stress echocardiography using a novel ultrasound imaging agent: two Phase 3 international trials in comparison with radionuclide perfusion imaging

Author

Senior, Roxy, Monaghan, Mark, Main, Michael L., Zamorano, Jose L., Tiemann, Klaus, Agati, Luciano, Weissman, Neil J., Klein, Allan L., Marwick, Thomas H., Ahmad, Masood, DeMaria, Anthony N., Zabalgoitia, Miguel, Becher, Harald, Kaul, Sanjiv, Udelson, James E., Wackers, Frans J., Walovitch, Richard C., and Picard, Michael H.

Published
2009

222. Constellation Ground Systems Launch Availability Analysis: Enhancing Highly Reliable Launch Systems Design

Author

Gernand, Jeffrey L, Gillespie, Amanda M, Monaghan, Mark W, and Cummings, Nicholas H

Subjects
Spacecraft Design, Testing And Performance
Abstract

Success of the Constellation Program's lunar architecture requires successfully launching two vehicles, Ares I/Orion and Ares V/Altair, in a very limited time period. The reliability and maintainability of flight vehicles and ground systems must deliver a high probability of successfully launching the second vehicle in order to avoid wasting the on-orbit asset launched by the first vehicle. The Ground Operations Project determined which ground subsystems had the potential to affect the probability of the second launch and allocated quantitative availability requirements to these subsystems. The Ground Operations Project also developed a methodology to estimate subsystem reliability, availability and maintainability to ensure that ground subsystems complied with allocated launch availability and maintainability requirements. The verification analysis developed quantitative estimates of subsystem availability based on design documentation; testing results, and other information. Where appropriate, actual performance history was used for legacy subsystems or comparative components that will support Constellation. The results of the verification analysis will be used to verify compliance with requirements and to highlight design or performance shortcomings for further decision-making. This case study will discuss the subsystem requirements allocation process, describe the ground systems methodology for completing quantitative reliability, availability and maintainability analysis, and present findings and observation based on analysis leading to the Ground Systems Preliminary Design Review milestone.

Published
2010

226. Effect of Iron Isomaltoside on Skeletal Muscle Energetics in Patients With Chronic Heart Failure and Iron Deficiency

Author

Charles-Edwards, Geoffrey, Amaral, Nelson, Sleigh, Alison, Ayis, Salma, Catibog, Norman, McDonagh, Theresa, Monaghan, Mark, Amin-Youssef, George, Kemp, Graham J, Shah, Ajay M, and Okonko, Darlington O

Abstract

BACKGROUND:Iron repletion augments exercise capacity in chronic heart failure (HF), but there is a lack of mechanistic data explaining how iron could augment exercise performance despite minimal changes in hemoglobin (Hb). Besides Hb, iron is an obligate component of mitochondrial enzymes that generate cellular energy in the form of adenosine triphosphate and phosphocreatine (PCr). Dynamic phosphorus magnetic resonance spectroscopy is a noninvasive tool that quantifies in vivo muscle energetics by measuring the kinetics of PCr recovery after exertion. We tested the hypothesis that intravenous iron repletion in chronic HF enhances skeletal muscle energetics as reflected by shorter PCr recovery half-times (PCr t1/2) on phosphorus magnetic resonance spectroscopy. METHODS:We enrolled 40 patients (50% anemic) with chronic HF, New York Heart Association class ≥II, left ventricular ejection fraction ≤45%, and iron deficiency (ferritin

Published
2019

237. Impact of left ventricular function and transaortic gradient on outcomes from transcatheter aortic valve implantation: data from the UK TAVI Registry

Author

A De Belder Mark, P Gale Christopher, Monaghan Mark, D Baxter Paul, J Malkin Christopher, J Blackman Daniel, D Cunningham Andrew, Long W. Robert, Wendler Olaf, R Thomas Martyn, E Moat Neil, and F Ludman Peter

Subjects
Male, Logistic euroscore, medicine.medical_specialty, Transcatheter aortic, 030204 cardiovascular system & hematology, Risk profile, Transcatheter Aortic Valve Replacement, Ventricular Dysfunction, Left, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, medicine, Humans, Registries, 030212 general & internal medicine, Aged, Retrospective Studies, Aged, 80 and over, Heart Valve Prosthesis Implantation, Ejection fraction, Ventricular function, business.industry, Stroke Volume, Mean age, EuroSCORE, Aortic Valve Stenosis, Treatment Outcome, Aortic valve surgery, Cardiology, Female, Cardiology and Cardiovascular Medicine, business
Abstract

AIMS Aortic valve surgery in the presence of reduced ejection fraction (EF) or low transaortic gradient is associated with adverse outcome. Low gradient (LG) may be associated with reduced EF, known as low EF-low gradient (LEF-LG), or "paradoxically" low with normal EF (P-LG). Our aim was to investigate the impact of EF and transaortic gradient on outcome following transcatheter aortic valve implantation (TAVI). METHODS AND RESULTS We retrospectively analysed the UK TAVI Registry from 2007 to 2011 (n=2,535 consecutive patients, mean age 81.3±7.5, logistic EuroSCORE 21.8±14). Thirty-day mortality was 7.8%, low EF (

Published
2016

240. The structural heart disease interventional imager rationale, skills and training: a position paper of the European Association of Cardiovascular Imaging.

Author

Agricola, Eustachio, Ancona, Francesco, Brochet, Eric, Donal, Erwan, Dweck, Marc, Faletra, Francesco, Lancellotti, Patrizio, Mahmoud-Elsayed, Hani, Marsan, Nina Ajmone, Maurovich-Hovart, Pal, Monaghan, Mark, Ribeiro, José, Sade, Leyla Elif, Swaans, Martin, Bardeleben, Ralph Stephan Von, Wunderlich, Nina, Zamorano, Jose-Luis, Popescu, Bogdan A, Cosyns, Bernard, and Edvardsen, Thor

Subjects
EDUCATION of physicians, OCCUPATIONAL roles, PATIENT aftercare, DIAGNOSTIC imaging, CLINICAL competence, CERTIFICATION, DECISION making in clinical medicine, HEART diseases
Abstract

Percutaneous therapeutic options for an increasing variety of structural heart diseases (SHD) have grown dramatically. Within this context of continuous expansion of devices and procedures, there has been increased demand for physicians with specific knowledge, skills, and advanced training in multimodality cardiac imaging. As a consequence, a new subspecialty of 'Interventional Imaging' for SHD interventions and a new dedicated professional figure, the 'Interventional Imager' with specific competencies has emerged. The interventional imager is an integral part of the heart team and plays a central role in decision-making throughout the patient pathway, including the appropriateness and feasibility of a procedure, pre-procedural planning, intra-procedural guidance, and post-procedural follow-up. However, inherent challenges exist to develop a training programme for SHD imaging that differs from traditional cardiovascular imaging pathways. The purpose of this document is to provide the standard requirements for the training in SHD imaging, as well as a starting point for an official certification process for SHD interventional imager. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

248. Effect of Iron Isomaltoside on Skeletal Muscle Energetics in Patients With Chronic Heart Failure and Iron Deficiency

Author

Charles-Edwards, Geoffrey, primary, Amaral, Nelson, additional, Sleigh, Alison, additional, Ayis, Salma, additional, Catibog, Norman, additional, McDonagh, Theresa, additional, Monaghan, Mark, additional, Amin-Youssef, George, additional, Kemp, Graham J., additional, Shah, Ajay M., additional, and Okonko, Darlington O., additional

Published
2019
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results