Background Native T1 mapping has emerged as a noninvasive magnetic resonance imaging (MRI) method to assess the diffuse myocardial fibrosis without an exogenous contrast agents. To date, no data are available regarding native left ventricular (LV) T1 relaxation time in AF patients referred for pulmonary vein isolation (PVI). The purpose of this study was to compare native myocardial T1 value be...

An optimal strategy for left atrial ablation in addition to pulmonary vein isolation (PVI) patients with persistent fibrillation (AF) has not been determined. EARNEST-PVI trial previously reported that PVI-plus (PVI followed by additional ablation, including linear or targeting areas complex fractionated electrograms [CFAE]) was possibly superior PVI alone AF patients. To elucidate long-term im...

Pulmonary vein isolation (PVI) become a standard procedure in atrial fibrillation (AF) treatment, proved to be more effective than antiarrhythmic medication alone. The procedure of PVI requires access to the left atrium, provided by the transseptal puncture (TSP), which carries potential risk of complication. We describe a case of transient, symptomatic ST-segment elevation in 57 year old male ...

Reduction of ventricular size was determined by repeated computed tomography in 30 adult patients shunted for normal pressure hydrocephalus (NPH) and related to the pressure-volume index (PVI) and resistance to outflow of cerebrospinal fluid (Rcsf) measured before shunting. Rapid and marked reduction of ventricular size (n = 10) was associated with a significantly lower PVI than slow and modera...

Cloud computing places an organization’s sensitive data in the control of a third party, introducing a significant level of risk on the privacy and security of the data. We propose a new management and security model for cloud computing called the Private Virtual Infrastructure (PVI) that shares the responsibility of security in cloud computing between the service provider and client, decreasin...

The use of a VME-bus-based transputer network as a parallel processing engine for positron volume imaging (PVI) is discussed. The authors find that the speedups of parallel networks depend on two major factors, the ratio of computation to communication for a task and the size of the task, and give a simple model to explore the limits on speedups. Through actual implementation it is shown that r...

Evidence is emerging to suggest that rhythm is possibly one of the more salient cues in the identification of Maltese English, a variety of English, distinct from other varieties, which is used extensively by many Maltese speakers of English. An attempt is made at using the Pairwise Variability Index (PVI) to: (i) categorize the clearly ‘different’ rhythm of this variety of English; and (ii) be...

The Pairwise Variability Index (PVI), a measure of how much unit-to-unit variation there is in speech, has been used as a correlate of rhythmic impressions such as ‘syllable-timed’ and ‘stress-timed’. Grabe and Low (2002) included Estonian among a number of languages for which they calculated the durational PVI for vowels and for intervocalic intervals, but other than that Estonian rhythm has n...

BACKGROUND The endpoint of ablation procedures is suggested to be non-inducibility of paroxysmal atrial fibrillation (PAF). However, the prognosis of induced AF/atrial tachycardia (AT) after pulmonary vein isolation (PVI) in PAF patients remains unclear. METHODS A total of 122 PAF patients were divided into the following 3 groups: Group 1, 79 without AF/AT induced after PVI; Group 2, 21 with ...

OBJECTIVE The outcomes of open surgical or endovascular intervention for limb-threatening ischemia (LTI) involving the infrapopliteal vessels are dependent on complex anatomic, demographic, and disease factors. To assist in decision-making, we used the Vascular Quality Initiative (VQI) to derive a model using only preoperatively available factors to predict important outcomes for open or endova...