Results 21 to 30 of about 207,015 (123)

TIFR Zero-Pressure balloon program crosses a milestone [PDF]

arXiv, 2021
High altitude scientific balloons offer unique opportunities to carry scientific payloads to stratospheric altitudes at a cost several orders of magnitude lower than corresponding satellite missions. Balloon-borne payloads are easy to implement allowing quick experiment turn-around times and inexpensive reflights can be conducted as payload is most of ...
arxiv  

Drug-Coated Versus Plain Balloon Angioplasty In Arteriovenous Fistulas: A Randomized, Controlled Study With 1-Year Follow-Up (The Drecorest Ii-Study)

Scandinavian Journal of Surgery, 2018
Background and Aims: Stenosis due to intimal hyperplasia and restenosis after initially successful percutaneous angioplasty are common reasons for failing arteriovenous fistulas. The aim of this study was to evaluate the effect of drug-coated balloons in
Patrick Björkman, E. Weselius, Tatu Kokkonen, V. Rauta, A. Albäck, M. Venermo   +5 more
semanticscholar   +1 more source

Rounded notch method of femoral endarterectomy offers mechanical advantages in finite element models [PDF]

arXiv, 2023
Objective: Use of a vascular punch to produce circular heel and toe arteriotomies for femoral endarterectomy with patch angioplasty is a novel technique. This study investigated the plausibility of this approach and the mechanical advantages of the technique using finite element models.
arxiv  

Balloon Pulmonary Angioplasty for Chronic Thromboembolic Pulmonary Hypertension: Results of a Multicenter Registry

Circulation. Cardiovascular Quality and Outcomes, 2017
Background— Balloon pulmonary angioplasty (BPA) is an alternative therapy for patients with chronic thromboembolic pulmonary hypertension who are ineligible for pulmonary endarterectomy—the standard therapy.
A. Ogawa, T. Satoh, T. Fukuda, K. Sugimura, Y. Fukumoto, N. Emoto, N. Yamada, A. Yao, M. Ando, H. Ogino, N. Tanabe, I. Tsujino, M. Hanaoka, K. Minatoya, Hiroshi Ito, H. Matsubara   +15 more
semanticscholar   +1 more source

Low-Dose Paclitaxel–Coated Versus Uncoated Percutaneous Transluminal Balloon Angioplasty for Femoropopliteal Peripheral Artery Disease

Circulation, 2017
Background: Numerous studies have reported favorable outcomes using drug-coated balloons (DCBs) for treatment of symptomatic peripheral artery disease of the superficial femoral and popliteal arteries.
Henrik Schroeder, M. Werner, D. Meyer, P. Reimer, Karsten Krüger, M. Jaff, M. Brodmann   +6 more
semanticscholar   +1 more source

Causal Inference for Comprehensive Cohort Studies [PDF]

arXiv, 2019
In a comprehensive cohort study of two competing treatments (say, A and B), clinically eligible individuals are first asked to enroll in a randomized trial and, if they refuse, are then asked to enroll in a parallel observational study in which they can choose treatment according to their own preference.
arxiv  

Directional Atherectomy With Antirestenotic Therapy vs Drug-Coated Balloon Angioplasty Alone for Isolated Popliteal Artery Lesions

Journal of Endovascular Therapy, 2017
Purpose: To report a single-center study comparing drug-coated balloon (DCB) angioplasty vs directional atherectomy with antirestenotic therapy (DAART) for isolated lesions of the popliteal artery.
K. Stavroulakis, A. Schwindt, G. Torsello, A. Stachmann, Christiane Hericks, M. Bosiers, E. Beropoulis, Stefan Stahlhoff, T. Bisdas   +8 more
semanticscholar   +1 more source

An English translation of L. Euler's "Calculations on aerostatic balloons made by the late Mr. Leonhard Euler, as they were found on his blackboard, after his death on 7 September 1783" [PDF]

arXiv, 2021
This is an English translation of E579 in which the introductory remarks are in French, while Euler's original text is in Latin. By considering the balance of forces acting on a raising balloon on an isothermal atmosphere, namely the weight of the balloon, the buoyant force, and the aerodynamic drag force, Euler provides closed formulas for the ...
arxiv  

Novel Angiographic Classification of Each Vascular Lesion in Chronic Thromboembolic Pulmonary Hypertension Based on Selective Angiogram and Results of Balloon Pulmonary Angioplasty

Circulation. Cardiovascular Interventions, 2016
Background—Balloon pulmonary angioplasty (BPA) is an alternative therapy for patients with chronic thromboembolic pulmonary hypertension who are ineligible for standard therapy, pulmonary endarterectomy.
Takashi Kawakami, A. Ogawa, K. Miyaji, H. Mizoguchi, H. Shimokawahara, T. Naito, T. Oka, K. Yunoki, M. Munemasa, H. Matsubara   +9 more
semanticscholar   +1 more source

Importance of balloon size in coronary angioplasty

Journal of the American College of Cardiology, 1989
The effect of balloon size on the success of coronary angioplasty was studied to develop quantitative criteria for optimal selection of balloon size. Coronary dimensions of 165 stenotic lesions were measured by computer-assisted cinevideodensitometry in 120 patients who had undergone angioplasty with a balloon selected by visual estimates.
Andrew D. Berke, Eric R. Powers, Rachel Clark Smith, Richard A. Shlofmitz, Allen B. Nichols   +4 more
openaire   +3 more sources