Objective: To compare the diagnostic performance of estimated energy loss (EEL) with diameter stenosis (DS) to estimate significant stenosis by fractional flow reserve (FFR).
Materials And Methods: One hundred twenty-five patients were included. EEL was calculated using DS, lesion length, minimal lumen area and left ventricular volume. FFR ≤ 0.80 was determined significant.
Results: EEL improved the accuracy from 63% (95% confidence interval (CI): 55-72%) to 83% (95% CI: 75-89%, p < 0.0001). EEL increased the area under the receiver operating characteristics curve from 0.63 to 0.85 (p < 0.0001).
Conclusions: EEL improved the diagnostic performance to detect functionally significant stenosis than DS.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.clinimag.2018.01.018 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dissipative constraint-based multi-area power system with time-varying delays and cyber-attacks.
ISA Trans
January 2025
Department of Applied Mathematics, Bharathiar University, Coimbatore 641046, India; Department of Mathematics, Sungkyunkwan University, Suwon 440746, Republic of Korea. Electronic address:
This work describes the dissipative constraint-based load frequency control problem for multi-area power system under load disturbances. Particularly, a new model incorporating time-varying delays and cyber-attacks are widespread in communication networks, significantly impacting control and stability. Consequently, the state-space equations of the addressed model are formulated and analyzed under the impact of false data injection attacks, and time-varying delays.
View Article and Find Full Text PDFPressure Distributions in Glottal Geometries With Multichannel Airflows.
J Voice
September 2024
Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, New York.
Article Synopsis
- Successful computer simulations of vocal fold oscillation are being refined to better account for asymmetric vibrations and complex contact patterns.
- Two methods were used in the study: a high-fidelity computational model and physical model pressure measurements, focusing on normal vibration modes of the vocal folds.
- The results revealed diverse pressure distributions on vocal folds, revealing that simplified models may not accurately represent the complexity of airflow in cases with multiple contact points.
Back to Bernoulli: a simple formula for trans-stenotic pressure gradients and retrospective estimation of flow rates in cerebral venous disease.
J Neurointerv Surg
July 2024
Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
Background: Venous sinus stenosis can be associated with cerebrovascular disorders. Understanding the role of blood flow disturbances in these disorders is often hampered by the lack of patient-specific flow rates. Our goal was to demonstrate the impact of this by predicting individual flow rates retrospectively from routine manometry and angiography.
View Article and Find Full Text PDFAssessment of implant internal stresses under physiological femoral loading: Translation to a simplified bending load model.
J Biomech
July 2024
Institute for Biomechanics, BG Unfallklinik Murnau, Prof.-Küntscher-Str. 8, 82418 Murnau, Germany; Institute for Biomechanics, Paracelsus Medical University, Strubergasse 21, 5020 Salzburg, Austria.
The success of surgical treatment for fractures hinges on various factors, notably accurate surgical indication. The process of developing and certifying a new osteosynthesis device is a lengthy and costly process that requires multiple cycles of review and validation. Current methods, however, often rely on predecessor standards rather than physiological loads in specific anatomical locations.
View Article and Find Full Text PDFA Novel Diastolic Doppler Index Less Affected by Aortic Arch Anomalies Co-existing with Coarctation.
Pediatr Cardiol
July 2024
Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI, USA.
Severity assessment for coarctation of the aorta (CoA) is challenging due to concomitant morphological anomalies (complex CoA) and inaccurate Doppler-based indices. Promising diagnostic performance has been reported for the continuous flow pressure gradient (CFPG), but it has not been studied in complex CoA. Our objective was to characterize the effect of complex CoA and associated hemodynamics on CFPG in a clinical cohort.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!