Pekka Aho

ORCID: 0000-0002-9252-1799
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About
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Research Areas
  • Software Testing and Debugging Techniques
  • Aortic aneurysm repair treatments
  • Software System Performance and Reliability
  • Cardiac, Anesthesia and Surgical Outcomes
  • Software Reliability and Analysis Research
  • Aortic Disease and Treatment Approaches
  • Software Engineering Research
  • Peripheral Artery Disease Management
  • Vascular Procedures and Complications
  • Model-Driven Software Engineering Techniques
  • Advanced Software Engineering Methodologies
  • Advanced X-ray and CT Imaging
  • Diagnosis and Treatment of Venous Diseases
  • Venous Thromboembolism Diagnosis and Management
  • Infectious Aortic and Vascular Conditions
  • Renal and Vascular Pathologies
  • Infective Endocarditis Diagnosis and Management
  • Radiation Dose and Imaging
  • Service-Oriented Architecture and Web Services
  • Hemodynamic Monitoring and Therapy
  • Real-time simulation and control systems
  • Advanced Malware Detection Techniques
  • Diabetic Foot Ulcer Assessment and Management
  • Surgical Simulation and Training
  • Abdominal vascular conditions and treatments

Open University of the Netherlands
2018-2024

Helsinki University Hospital
2012-2024

University of Helsinki
2016-2024

Hong Kong Metropolitan University
2021

Leibniz Institute for Resilience Research
2018

VTT Technical Research Centre of Finland
2009-2017

University of Maryland, College Park
2014

Abstract Background Endovenous ablation techniques and ultrasound-guided foam sclerotherapy (UGFS) have largely replaced open surgery for treatment of great saphenous varicose veins. This was a randomized trial to compare the effect surgery, endovenous laser (EVLA) (with phlebectomies) UGFS on quality life occlusion rate vein (GSV) 12 months after surgery. Methods Patients with symptomatic, uncomplicated veins (CEAP class C2–C4) were examined at baseline, 1 month year. Before discharge week,...

10.1002/bjs.10260 article EN cc-by-nc British journal of surgery 2016-08-26

Automation is required in the software development to reduce high costs of producing and address short release cycles modern processes. Lot effort has been performed automate testing, which one most resource-consuming phases. testing through Graphical User Interface (GUI) researched improve system testing. We aim evaluate complementarity automated GUI tools a real industrial context, refers capability work usefully together. To objective, we conduct an exploratory case study IT company from...

10.1016/j.infsof.2023.107172 article EN cc-by-nc-nd Information and Software Technology 2023-02-13

In this paper, we describe a spectrum access system (SAS) based Citizens Broadband Radio Service (CBRS) field trial using live LTE network in the 3.5 GHz band. The latest WInnForum specification guided implementation of relevant protocols for SAS operation. Here, evaluate performance CBRS by one most important indicators sharing scenario - evacuation time. It indicates how rapidly secondary user relinquishes shared band to primary user. Following applied protocols, measure and analyze time...

10.1109/dyspan.2017.7920760 article EN 2017-03-01

Abstract Background A variety of minimally invasive techniques are available for the treatment varicose great saphenous vein (GSVs). Non-tumescent, non-thermal ablation methods have been developed. This study compared mechanochemical (MOCA), a non-tumescent, technique, with two endovenous thermal requiring tumescence in an RCT. Methods Patients GSV reflux were randomized to undergo MOCA, or laser (EVLA) radiofrequency (RFA). The primary outcome measure was occlusion rate at 1 year. Results...

10.1002/bjs.11158 article EN British journal of surgery 2019-03-25

Summary Covering all the possible paths of graphical user interface (GUI) with test scripts would take too much effort and result in serious maintenance issues. We propose complementing scripted testing scriptless automation using open‐source testar tool. This paper gives a comprehensive overview its latest extensions together ongoing future research. With this paper, we hope can help encourage other researchers to use for their GUI testing‐related research pave way an international agenda...

10.1002/stvr.1771 article EN cc-by Software Testing Verification and Reliability 2021-04-25

State model inference of software applications through the Graphical User Interface (GUI) is a technique that identifies GUI states and transitions, maps them into model. Scriptless testing tools can benefit substantially from availability these state models, for example, to improve exploration, or have sophisticated test oracles. However, inferring models large systems requires long execution time. Our goal speed process. To achieve this goal, paper presents distributed approach with an...

10.1016/j.jss.2023.111645 article EN cc-by Journal of Systems and Software 2023-02-15

Advanced methods and tools for GUI software development allow a rapid iterative process of prototyping usability testing. Unfortunately, even with the support test automation tools, testing requires lot manual work, especially when application under is changing rapidly. In this paper we present an improved method tool automated modeling Java applications model-based (MBT) purposes. The implemented Driver generates structural models combined state model presenting behavior that executed...

10.1109/itng.2011.54 article EN 2011-04-01

One of the main challenges in adopting model-based testing (MBT) is effort and expertise required to produce formal models. For an existing system, there are various approaches automate process creating In this paper, we share our experiences from a long term industrial evaluation on automatically extracting models graphical user interface (GUI) applications utilizing extracted support GUI testing. While model extraction has been recently popular research topic, most proposed have...

10.1109/icstw.2014.39 article EN 2014-03-01

To quantify the effects of different imaging settings on radiation exposure to operator and surgical team in a hybrid operating room (OR).Measurements determine scatter geometry using an anthropomorphic phantom were performed OR equipped with robotic C arm interventional angiography system (Artis Zeego; Siemens Healthcare, Erlangen, Germany). The dose (RD) was measured seven calibrated Philips DoseAware active electronic dosimeters Raysafe Xi survey detector, which placed at locations OR....

10.1016/j.ejvs.2020.01.018 article EN cc-by-nc-nd European Journal of Vascular and Endovascular Surgery 2020-02-12

This paper presents the first end-to-end field trial of U.S. three-tier Citizens Broadband Radio Service (CBRS) with carrier aggregation using commercial 3.5 GHz network elements in a live LTE-A test network. The features an assignment shared spectrum to operational LTE base station and demonstrates how it boosts end user mobile data rate due extended bandwidth availability. is important as shows that access system can be implemented utilizing existing systems latest technologies. allows...

10.1109/dyspan.2017.7920763 article EN 2017-03-01

ObjectiveRoughly 10% – 20% of pancreatic cancer patients are candidates for curative intent surgical treatment. In the 2000s, many studies showed similar survival rates comparing surgery with or without vein resection and reconstruction. The aim was to identify best method venous reconstruction.MethodsThis a retrospective cohort study. A total 1 375 undergoing pancreatectomy between 2005 2018 were identified. Patients combined reconstruction included retrospectively. When tumour infiltration...

10.1016/j.ejvs.2022.04.006 article EN cc-by European Journal of Vascular and Endovascular Surgery 2022-04-21

The risk of bridging stent occlusion after branched endovascular aortic repair (BEVAR) remains an issue. Currently, there is no clear recommendation on what kind antithrombotic therapy should be installed BEVAR. aim the study was to estimate impact postoperative rate elective An international multicenter retrospective analysis performed in 4 European tertiary vascular units. All reno-visceral target vessels treated with stents patients undergoing BEVAR use off-the-shelf or custom-made...

10.1177/15266028241253133 article EN cc-by Journal of Endovascular Therapy 2024-05-26
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