نتایج جستجو برای: pressure waveforms

تعداد نتایج: 417137  

2014
Jonathan R Linder Harald M Stauss Gary L Pierce William G Haynes Jess G. Fiedorowicz

Concern 1.1: Please spell out “HF” and “LF.” Response 1.1: We have corrected this in the abstract: “... was excellent [High Frequency (HF)=0.80, Low Frequency (LF)=0.81], with ...” Methods Concern 1.2: Page 6, blood pressure (BP) was already used in previous sentences. Response 1.2: We have corrected this accordingly: “For all participants, BP waveforms were recorded ...”

2004
YUICHIRO TANIOKA KENJI SATAKE Jody Flores Yuichiro Tanioka

-The fault parameters of the Guam earthquake of August 8, 1993 are estimated from seismological analyses, and the possibility of identifying the actual fault plane from tsunami waveforms is tested. The Centroid Moment Tensor solution of long-period surface waves shows one nodal plane shallowly dipping to the north and the other nodal plane steeply dipping to the south. The seismic moment is 3.5...

2017
Ayşe Keven Mehmet Sedat Durmaz

Background Peripheral arterial disease is an atherosclerotic disease characterized by an increase in morbidity and mortality. For these reasons early diagnosis of peripheral arterial disease is important. Ankle-brachial systolic pressure index measurement is frequently used in screening studies. Evaluating waveforms of distal lower extremities with Doppler ultrasound can be used as a screening ...

2009
Chunhua Huang Nephtali Marina Michael P. Gilbey

Microneurography has been used in humans to study sympathetic activity supplying targets within skeletal muscle and skin. Comparable animal studies are relatively few, probably due to the technical demands of traditional fibre picking techniques. Here we apply a simple suction electrode technique to record cutaneous (CVC) and muscle (MVC) vasoconstrictor activities and describe and investigate ...

2011
Fabiano Di Marco Stefano Centanni Andrea Bellone Grazia Messinesi Alberto Pesci Raffaele Scala Andreas Perren Stefano Nava

INTRODUCTION The analysis of flow and pressure waveforms generated by ventilators can be useful in the optimization of patient-ventilator interactions, notably in chronic obstructive pulmonary disease (COPD) patients. To date, however, a real clinical benefit of this approach has not been proven. METHODS The aim of the present randomized, multi-centric, controlled study was to compare optimiz...

Journal: :Hypertension 2009
Michael F O'Rourke Kenji Takazawa

Letters to the Editor will be published, if suitable, as space permits. They should not exceed 1000 words (typed double-spaced) in length and may be subject to editing or abridgment. The article by Segers et al 1 on aortic-radial wave transmission and amplification casts doubt on the present approach to the calculation of central aortic pressure from the radial artery tonomographic waveform; th...

Journal: :Hypertension 2001
A L Pauca M F O'Rourke N D Kon

Pressure wave reflection in the upper limb causes amplification of the arterial pulse so that radial systolic and pulse pressures are greater than in the ascending aorta. Wave transmission properties in the upper limbs (in contrast to the descending aorta and lower limbs) change little with age, disease, and drug therapy in adult humans. Such consistency has led to use of a generalized transfer...

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