Results 141 to 150 of about 180,206 (347)

Quantitative Confounder Analysis of Electrocardiogram Signals in Cardiac Magnetic Resonance at 1.5, 3 and 7 T—Assessing Standardized Electrode Positions and Sequence Types—Towards Quality Assurance

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The electrocardiogram (ECG) used for gating in cardiac MRI may be compromised by multiple confounders inside the scanner bore. Purpose To quantify the influence of magnetic field strengths (1.5 T/3 T/7 T), standardized electrode positions, and imaging sequences on ECG signals used for gating. Study Type Prospective.
Richard Hickstein, Stephanie Wiesemann, Darian Viezzer, Denise Kleindienst, Teodora Chitiboi, Bogdan Andrei Gheorghita, Jens Wetzl, Thomas Hadler, Sebastian Dietrich, Sebastian Schmitter, Jeanette Schulz‐Menger   +10 more
wiley   +1 more source

Genotype-Phenotype Relationships in Long QT Syndrome : Role of Mental Stress, Adrenergic Activity and a Common KCNH2 Polymorphism [PDF]

, 2006
Long QT syndrome is a congenital or acquired arrhythmic disorder which manifests as a prolonged QT-interval on the electrocardiogram and as a tendency to develop ventricular arrhythmias which can lead to sudden death.
Paavonen, Kristian
core  

Hepatopulmonary syndrome in children and adolescents with portal hypertension in Brazil: A multicenter study

Journal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives To describe the clinical and laboratory characteristics and outcomes of pediatric hepatopulmonary syndrome (HPS) secondary to portal hypertension (PH) in Brazil. Methods Fifty‐four pediatric patients diagnosed with PH and HPS according to the European Respiratory Society criteria were included in this multicenter retrospective study.
Leticia Drumond Alberto, Eleonora Druve Tavares Fagundes, Adriana Teixeira Rodrigues, Thaís Costa Nascentes Queiroz, Gustavo Valverde de Castro, Carlos Oscar Kieling, Sandra Maria Gonçalves Vieira, Natália Lamounier dos Martires Guerra, Natascha Silva Sandy, Gilda Porta, Irene Kazue Miura, Maria Ângela Bellomo Brandão, Gabriel Hessel, Adriana Maria Alves de Tommaso, Alexandre Rodrigues Ferreira   +14 more
wiley   +1 more source

Intervalo QT em doentes com hipertensão arterial: estudo por electrocardiograma [PDF]

, 2011
A hipertensão arterial (HTA) é um grave problema de saúde pública que afecta milhares de pessoas em todo o mundo. Apresenta uma elevada prevalência nas sociedades modernas, sendo um importantíssimo factor de risco para as doenças cardiovasculares.
Coelho, Patrícia, Pereira, Alexandre, Pereira, Telmo, Robalo, Diogo   +3 more
core  

Inference for VARs Identified with Sign Restrictions

, 2018
There is a fast growing literature that set-identifies structural vector autoregressions (SVARs) by imposing sign restrictions on the responses of a subset of the endogenous variables to a particular structural shock (sign-restricted SVARs). Most methods
Granziera, Eleonora, Moon, Hyungsik Roger, Schorfheide, Frank   +2 more
core   +1 more source

Risk of Mortality Associated With QT and JT Intervals at Different Levels of QRS Duration (from the Third National Health and Nutrition Examination Survey)

, 2015
Muhammad Zulqarnain, Waqas Qureshi, Wesley T. O’Neal, Amit Shah, Elsayed Z. Soliman   +4 more
openalex   +1 more source

Drug-induced QT-interval prolongation and proarrhythmic risk in the treatment of atrial arrhythmias [PDF]

, 2007
Eduard Shantsila, Timothy Watson, Gregory Lip   +2 more
openalex   +1 more source

Quadriceps, hamstring and patella tendon autografts for primary anterior cruciate ligament reconstruction demonstrate similar clinical outcomes, including graft failure, joint laxity and complications: A systematic review with meta‐analysis of randomised controlled trials

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Graft failure following anterior cruciate ligament reconstruction (ACLR) remains a significant challenge, driving discussion for optimal graft choice. Traditionally, hamstring tendon (HT) and bone‐patella tendon‐bone (BPTB) autografts have been favoured for ACLR. Recently, quadriceps tendon (QT) usage has increased.
Ty White, Matthew Castro, Lucas Antonio, Wayne Hing, Francois Tudor, Larissa Sattler   +5 more
wiley   +1 more source

Algorithmic testing for QT interval measurements [PDF]

The PTB diagnostic ECG database has been used for testing the fully automated program for the identification and measurement of QT interval. The database consists of 549 ECG recordings of 294 subjects. The testing algorithm uses the Padova program, which
Bortolan, Giovanni
core  

Surgical caseload and annual volume influence cartilage treatment strategies in primary anterior cruciate ligament reconstruction

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To evaluate how surgeon and clinic volume, along with patient‐, injury‐ and surgery‐related factors, influence cartilage injury management in primary anterior cruciate ligament reconstruction (ACLR). Methods This retrospective cohort study analysed cartilage treatment (debridement, microfracture, other methods or left in situ) in ...
Dzan Rizvanovic, Markus Waldén, Magnus Forssblad, Anders Stålman   +3 more
wiley   +1 more source