Comparison of brachial and central blood pressures using an oscillometric device with 2 or 6 metre tubing lengths for assessment of central pressure during MRI exam
نویسندگان
چکیده
Background Magnetic resonance imaging (MRI) offers the possibility to measure local and regional indices of aortic function. However calculations of these indices usually require blood pressure (BP) values. Up to now, because of its easier availability, brachial BP was used instead of local aortic pressure. The SphygmoCor Xcel system (AtCor Medical, Australia) estimates aortic pressure noninvasively. It consists in a MRI compatible brachial cuff connected via a hose to a recording unit and computer. The aim of this study was to compare brachial and central BP values given by SphgymoCor Xcel with the standard 2 meters hose and a 6 meters hose more suitable for central BP assessment during MRI.
منابع مشابه
Central Blood Pressure/Aortic Stiffness Validation of a Brachial Cuff-Based Method for Estimating Central Systolic Blood Pressure
The prognostic value of central systolic blood pressure has been established recently. At present, its noninvasive assessment is limited by the need of dedicated equipment and trained operators. Moreover, ambulatory and home blood pressure monitoring of central pressures are not feasible. An algorithm enabling conventional automated oscillometric blood pressure monitors to assess central systol...
متن کاملValidation of a brachial cuff-based method for estimating central systolic blood pressure.
The prognostic value of central systolic blood pressure has been established recently. At present, its noninvasive assessment is limited by the need of dedicated equipment and trained operators. Moreover, ambulatory and home blood pressure monitoring of central pressures are not feasible. An algorithm enabling conventional automated oscillometric blood pressure monitors to assess central systol...
متن کاملMeasuring aortic distensibility with cmr using central pressures estimated in the magnet: comparison with carotid and peripheral pressures
Background Several studies have demonstrated the feasibility and value of studying local aortic strain with CMR. Calculating aortic distensibility ideally requires the knowledge of simultaneously acquired central pressure changes which until recently remained a challenge during CMR. New MR-compatible devices using an oscillometric technique to estimate central pressures from a brachial cuff are...
متن کاملValidation of the noninvasive assessment of central blood pressure by the SphygmoCor and Omron devices against the invasive catheter measurement.
BACKGROUND To investigate the accuracy of the SphygmoCor and Omron HEM9000-AI devices in the estimation of central blood pressure (BP) in comparison with the simultaneous invasive catheter measurement. METHODS The radial arterial pulse was sequentially recorded by the use of the Omron and SphygmoCor devices in 33 patients, with the calibration of the brachial oscillometric BP, to derive centr...
متن کاملApplication of the N-point moving average method for brachial pressure waveform-derived estimation of central aortic systolic pressure.
The N-point moving average (NPMA) is a mathematical low-pass filter that can smooth peaked noninvasively acquired radial pressure waveforms to estimate central aortic systolic pressure using a common denominator of N/4 (where N=the acquisition sampling frequency). The present study investigated whether the NPMA method can be applied to brachial pressure waveforms. In the derivation group, simul...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 18 شماره
صفحات -
تاریخ انتشار 2016