نتایج جستجو برای: noninvasive medical procedure

تعداد نتایج: 1177578  

Ashkan Moula Mehrosadat Alavi Seyed Ali Nabavizadeh

Coronary heart disease (CAD) is the leading cause of death specially among elderly. Coronary angiography is the best diagnostic method in the patients, but is unfortunately an invasive procedure with its inherent risks. Myocardial perfusion scan is a noninvasive and sensitive method for evaluation of CAD and is suggested by many investigators in recent years. In this study, 64 patients wh...

Down syndrome (DS) is a birth defect with huge medical and social costs, caused by trisomy of whole or part of chromosome 21. It is the most prevalent genetic disease worldwide and the common genetic cause of intellectual disabilities appearing in about 1 in 400-1500 newborns. Although the syndrome had been described thousands of years before, it was named after John Langdon Down who described ...

Journal: :AJNR. American journal of neuroradiology 1983
R H Ackerman J G D'Alton K R Davis J R Hesselink G A Donnan J M Taveras

Initial comparisons of the results of digital subtraction angiography (DSA) and a battery of tests for noninvasive diagnosis of carotid artery disease indicate the two techniques are complementary, rather than competitive. DSA provides important morphologic information at the carotid bifurcation and siphon, but the images are sometimes difficult to interpret with precision. Noninvasive testing ...

Journal: :Journal of Engineering and Applied Science 2023

Abstract At the molecular level, body is composed, on average, of water for 62%, fat 15%, 17% protein, and 6% minerals. In this work, we propose a heuristic methodology using hydration models as base to realize an automatic noninvasive procedure estimate ad hoc map complex dielectric permittivity generic human tissue in frequency range microwaves based their solid content.

2011
Hans Jörg Baumann Hans Klose Marcel Simon Tarik Ghadban Stephan A Braune Jan K Hennigs Stefan Kluge

INTRODUCTION Noninvasive ventilation (NIV) is a standard procedure in selected patients with acute respiratory failure. Previous studies have used noninvasive ventilation to ensure adequate gas exchange during fiberoptic bronchoscopy in spontaneously breathing hypoxemic patients, thus avoiding endotracheal intubation. However, it is unknown whether bronchoscopy can be performed safely in patien...

Journal: :Epilepsia 2014
Andrew C Papanicolaou Roozbeh Rezaie Shalini Narayana Asim F Choudhri James W Wheless Eduardo M Castillo James E Baumgartner Frederick A Boop

The question we address here is whether the invasive presurgical brain mapping approaches of direct cortical stimulation and of the Wada procedure can be replaced by noninvasive functional neuroimaging methods (functional magnetic resonance imaging [fMRI], magnetoencephalography [MEG], transcranial magnetic stimulation and [TMS]). First, we outline the reasons for contemplating such a replaceme...

Journal: :The New England journal of medicine 2004
Andrés Esteban Fernando Frutos-Vivar Niall D Ferguson Yaseen Arabi Carlos Apezteguía Marco González Scott K Epstein Nicholas S Hill Stefano Nava Marco-Antonio Soares Gabriel D'Empaire Inmaculada Alía Antonio Anzueto

BACKGROUND The need for reintubation after extubation and discontinuation of mechanical ventilation is not uncommon and is associated with increased mortality. Noninvasive positive-pressure ventilation has been suggested as a promising therapy for patients with respiratory failure after extubation, but a single-center, randomized trial recently found no benefit. We conducted a multicenter, rand...

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