2002年8月1日 · Measurements of left ventricular pressure and its first derivative dP/dt were performed using a SPC-471A Micro-Tip pressure transducer catheter with lumen (Millar Instruments, Houston, TX), which also was inserted into the …

1999年4月20日 · Another micromanometric catheter (7F) with a fluid lumen (model SPC-471A, Millar) was inserted into the left atrium (Figure 1). At the end of each recording, we induced extrasystoles by the right ventricular pacing catheter in the right ventricle. Long diastoles after premature contractions were used to adjust absolute pressure levels.

were performed using a SPC-471A Micro-Tip pressure transducer catheter with lumen (Millar Instruments, Houston, TX), which also was inserted into the left ventricle through the incision in the apex cordis. The tip of the catheter was provided with a latex balloon (Hugo Sachs Elektronik, March-Hugstetten, Germany), which

Continuous central pressures were obtained with transducers placed into the ascending aorta and to the right atrium (Mikro-Tip transducer model SPC 471A and SPC 3705, Millar Instruments, Houston, TX).

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2020年6月11日 · The protocol was approved by the Ethical Committee of the institution. Positioning of pressure transducers ( Fig. 1 ) Micromanometer-tipped catheters were placed in the left atrium (LA) (model SPC-471A, Millar Instruments, Houston, Texas), LV inflow tract (model MPC-500), and LV outflow tract (model

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The Icom IC-471A is similar to the Icom IC-271A, but covers the 440 MHz band instead of 2 meters. Power output is 1 to 25 watts. Encode is built in. Additional adjustment controls can be accessed via a trap door on the top panel. The antenna jack is N type. The Icom IC-471H is a similar to the IC-471A but it is high power. Power output is 10 to ...