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Condition: Aortic Stenosis
Procedure: CT Scan

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Total 57 results found since Jan 2013.

Thoracic Aortic < sup > 18 < /sup > F-Sodium Fluoride Activity and Ischemic Stroke in Patients With Established Cardiovascular Disease
CONCLUSIONS: In patients with established cardiovascular disease, thoracic aortic 18F-sodium fluoride activity is associated with the progression of atherosclerosis and future ischemic stroke. Arterial 18F-sodium fluoride activity identifies localized areas of atherosclerotic disease activity that are directly linked to disease progression and downstream regional clinical atherothrombotic events. (DIAMOND - Dual Antiplatelet Therapy to Reduce Myocardial Injury [DIAMOND], NCT02110303; Study Investigating the Effect of Drugs Used to Treat Osteoporosis on the Progression of Calcific Aortic Stenosis [SALTIRE II], NCT02132026; ...
Source: Atherosclerosis - February 20, 2022 Category: Cardiology Authors: Alexander J Fletcher Yong Y Tew Evangelos Tzolos Shruti S Joshi Jakub Kaczynski Jennifer Nash Samuel Debono Maria Lembo Jacek Kwiecinski Rong Bing Maaz B J Syed Mhairi K Doris Edwin J R van Beek Alistair J Moss William S Jenkins Niki L Walker Nikhil V Jos Source Type: research

Association Of Stroke With Pattern Of Aortic Leaflet And Left Ventricular Outflow Tract Calcifications
Introduction: Stroke is a feared complication of transcatheter aortic valve replacement (TAVR) used for treatment of severe aortic stenosis. The risk of stroke has been associated with leaflet calcification burden. We aimed to investigate whether a specific pattern of aortic leaflet and left ventricular outflow tract (LVOT) calcification is associated with stroke risk.
Source: Journal of Cardiovascular Computed Tomography - July 1, 2021 Category: Radiology Authors: D. Brito, M. Shotwell, P. Agrawal, S. Patibandla, M. Kadiyala, Y. Hamirani, R. Daggubati, B. Raybuck, A. Kawsara, I. Zeb Source Type: research

Impact of stroke volume assessment by integrating multi-detector computed tomography and Doppler data on the classification of aortic stenosis
The prevalence of low flow low gradient (LFLG) severe aortic stenosis (AS) may be overrated due to underestimation of stroke volume in two-dimensional (2D) echocardiography. The implications of 3D imaging on stroke volume calculation for AS classification have not been elucidated. Integrating multi-detector computed tomography (MDCT) and Doppler data may improve diagnostic accuracy in patients with LFLG AS.
Source: International Journal of Cardiology - September 1, 2017 Category: Cardiology Authors: Barbara E. St ähli, Thomas Stadler, Erik W. Holy, Thi Dan Linh Nguyen-Kim, Lisa Hoffelner, Ladina Erhart, Slayman Obeid, Markus Niemann, Rolf Jenni, Sandra Hamada, Robert Manka, Thomas F. Lüscher, Francesco Maisano, Fabian Nietlispach, Thomas Frauenfeld Source Type: research

Geometry of the left ventricular outflow tract assessed by 3D TEE in patients with aortic stenosis: impact of upper septal hypertrophy on measurements of Doppler-derived left ventricular stroke volume
Conclusions3D TEE can provide a precise assessment of the LVOT in AS. USH affects the LVOT geometry in patients with AS, which might lead to inaccurate assessments of disease severity.
Source: Journal of Echocardiography - May 24, 2018 Category: Cardiology Source Type: research

Calcified Cerebral Emboli, A "Do Not Miss" Imaging Diagnosis: 22 New Cases and Review of the Literature FELLOWS' JOURNAL CLUB
CONCLUSIONS: Calcified cerebral emboli are more common than previously assumed, are frequently overlooked or misinterpreted, affect clinical course when diagnosed, and carry substantial risk for recurrent stroke.
Source: American Journal of Neuroradiology - August 14, 2014 Category: Radiology Authors: Walker, B. S., Shah, L. M., Osborn, A. G. Tags: FELLOWS ' JOURNAL CLUB Source Type: research

Comparative analysis of balloon- versus mechanically-expandable transcatheter heart valves considering landing zone calcification.
CONCLUSION: Both THVs yield comparable procedural and clinical outcomes except for a higher PPI rate with the Lotus valve, which is independent from the extent of landing zone calcification. The extent of landing zone calcification is associated with an increased risk for PVL for both THV, but is significantly reduced with the Lotus valve. PMID: 29548665 [PubMed - as supplied by publisher]
Source: Journal of Cardiology - March 13, 2018 Category: Cardiology Authors: Schofer N, Deuschl F, Schön G, Seiffert M, Linder M, Schaefer A, Schirmer J, Lubos E, Reichenspurner H, Blankenberg S, Conradi L, Schäfer U Tags: J Cardiol Source Type: research

Mid-Term Outcomes after Transapical and Transfemoral Transcatheter Aortic Valve Implantation for Aortic Stenosis and Porcelain Aorta with a Systematic Review of Transfemoral versus Transapical Approach
Conclusion TA-TAVI shows promising early and mid-term outcomes in patients with PAo. TF-TAVI performed in patients with PAo is likely to be associated with higher rates of stroke than TA-TAVI. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: The Thoracic and Cardiovascular Surgeon - June 25, 2019 Category: Cardiovascular & Thoracic Surgery Authors: Useini, Dritan Haldenwang, Peter Schl ömicher, Markus Christ, Hildegard Naraghi, Hamid Moustafine, Vadim Strauch, Justus Tags: Original Cardiovascular Source Type: research

Mid-Term Outcomes after Transapical and Transfemoral Transcatheter Aortic Valve Implantation for Aortic Stenosis and Porcelain Aorta with a Systematic Review of Transfemoral versus Transapical Approach.
CONCLUSION:  TA-TAVI shows promising early and mid-term outcomes in patients with PAo. TF-TAVI performed in patients with PAo is likely to be associated with higher rates of stroke than TA-TAVI. PMID: 31242522 [PubMed - as supplied by publisher]
Source: The Thoracic and Cardiovascular Surgeon - June 25, 2019 Category: Cardiovascular & Thoracic Surgery Authors: Useini D, Haldenwang P, Schlömicher M, Christ H, Naraghi H, Moustafine V, Strauch J Tags: Thorac Cardiovasc Surg Source Type: research

Prevalence and Risk Factors of Silent Brain Infarction in Patients with Aortic Stenosis
Conclusion: These findings indicate that AS is associated with a high prevalence of SBI, and that the CHA2DS2-VASc score and eGFR are useful for risk stratification.Cerebrovasc Dis Extra 2020;10:116 –123
Source: Cerebrovascular Diseases Extra - October 8, 2020 Category: Neurology Source Type: research

Differences in Flow-Gradient Patterns Between Severe Bicuspid Aortic Stenosis and Severe Tricuspid Aortic Stenosis 　- Mechanistic Insight From Multimodal Imaging.
CONCLUSIONS: Flow-gradient patterns in bicuspid AS differ from those of tricuspid AS and are associated with the structural and functional characteristics of the aorta. PMID: 31787664 [PubMed - as supplied by publisher]
Source: Circulation Journal - November 29, 2019 Category: Cardiology Authors: Kim D, Shim CY, Kim YJ, Nam K, Hong GR, Lee SH, Lee S, Ha JW Tags: Circ J Source Type: research

Time-Dependent Changes in Porcelain Aorta and Aortic Stenosis in a Patient with Systemic Lupus Erythematosus.
Authors: Hirose K, Kodera S, Daimon M, Komuro I Abstract Porcelain aorta, defined as extensive calcification of the ascending aorta or aortic arch, is a reported risk factor for embolic stroke during cardiac surgery. However, the time course of the progression of aortic calcification leading to porcelain aorta has not been elucidated. We herein describe a 70-year-old woman who was followed up for systemic lupus erythematosus and antiphospholipid syndrome for approximately 20 years. A routine computed tomography scan revealed progression of ascending aortic calcification to porcelain aorta. The calcification was abs...
Source: International Heart Journal - November 17, 2020 Category: Cardiology Tags: Int Heart J Source Type: research

Valvuloplasty with a paclitaxel-eluting balloon prevents restenosis in an experimental animal model of aortic stenosis.
CONCLUSION: Use of a paclitaxel-eluting valvuloplasty balloon in an animal model of AS resulted in attenuated restenosis, secondary to decrease in valve proliferation and calcification. PMID: 25803975 [PubMed - in process]
Source: Journal of Heart Valve Disease - March 26, 2015 Category: Cardiology Tags: J Heart Valve Dis Source Type: research

Low gradient severe aortic stenosis with preserved ejection fraction: reclassification of severity by fusion of Doppler and computed tomographic data
Conclusion The fusion AVAi reclassifies 52% of normal flow–low gradient and 12% of low flow–low gradient severe AS into true moderate AS, by providing true cross-sectional LVOT area.
Source: European Heart Journal - August 14, 2015 Category: Cardiology Authors: Kamperidis, V., van Rosendael, P. J., Katsanos, S., van der Kley, F., Regeer, M., Al Amri, I., Sianos, G., Marsan, N. A., Delgado, V., Bax, J. J. Tags: Valvular heart disease Source Type: research

Replicating Patient-Specific Severe Aortic Valve Stenosis With Functional 3D Modeling Valvular Heart Disease
Conclusions— By combing the technologies of high-spatial resolution computed tomography, computer-aided design software, and fused dual-material 3D printing, we demonstrate that patient-specific models can replicate both the anatomic and functional properties of severe degenerative aortic valve stenosis.
Source: Circulation: Cardiovascular Imaging - October 8, 2015 Category: Radiology Authors: Maragiannis, D., Jackson, M. S., Igo, S. R., Schutt, R. C., Connell, P., Grande-Allen, J., Barker, C. M., Chang, S. M., Reardon, M. J., Zoghbi, W. A., Little, S. H. Tags: Catheter-based coronary and valvular interventions: other, CT and MRI, Echocardiography, CV surgery: valvular disease Valvular Heart Disease Source Type: research

Clinical Aspects and Current Evidence Base for Transcatheter Aortic Valve Implantation
Aortic stenosis (AS) is a common disorder that affects nearly 5% of individuals over 75 years of age. Many patients with AS are unable to undergo surgical valve replacement (SAVR) as they are commonly deemed to be of very high risk. Transcatheter aortic valve implantation (TAVI), introduced in 2002, is a new method for treatment of these patients. Computed tomography (CT) is becoming the gold standard imaging modality for preprocedural planning, including assessment of annular size and access. Since 2002,>100,000 procedures have been performed with either a balloon-expandable valve (Edwards SAPIEN valve) or the self-expand...
Source: Journal of Thoracic Imaging - October 23, 2015 Category: Radiology Tags: Symposium Review Articles Source Type: research