"Detekce rychlosti pulzn\u00ED vlny v elastick\u00E9 trubici"@cs . "Detekce rychlosti pulzn\u00ED vlny v elastick\u00E9 trubici" . . "Kubov\u00FD, P." . . "Chlup, Hynek" . . . . . "Z\u00E1pado\u010Desk\u00E1 univerzita v Plzni" . "5"^^ . "6"^^ . . . "Rychlost pulzn\u00ED vlny v c\u00E9v\u00E1ch je jedn\u00EDm z d\u016Fle\u017Eit\u00FDch hemodynamick\u00FDch parametr\u016F pro posouzen\u00ED stavu nebo rozsahu po\u0161kozen\u00ED tepny. Pro rozum\u011Bt probl\u00E9mu, fyziologick\u00E9 hodnoty mus\u00ED b\u00FDt zn\u00E1m\u00FD. V na\u0161\u00ED laborato\u0159i je zkoum\u00E1na rychlost pulzn\u00ED vlny v pru\u017En\u00FDch elastick\u00FDch latexov\u00FDch trubic\u00EDch a tepn\u00E1ch. M\u011B\u0159en\u00ED je prov\u00E1d\u011Bno in vitro neinvazivn\u00ED metodou. Metoda je zalo\u017Een\u00E1 na sn\u00EDm\u00E1n\u00ED obrazu pulzuj\u00EDc\u00ED trubice, m\u011B\u0159en\u00EDch posunut\u00ED st\u011Bny trubice vlivem pr\u016Fchodu pulzn\u00ED vlny. Byla pou\u017Eita vysokofrekven\u010Dn\u00ED kamera se sn\u00EDmac\u00ED frekvenci 1000 sn\u00EDmk\u016F/s. Tato sn\u00EDmkovac\u00ED frekvence se uk\u00E1zala b\u00FDt dosta\u010Duj\u00EDc\u00ED pro detekci rychlosti pulzn\u00ED vlny. Z\u00EDskan\u00E1 data byla analyzov\u00E1ny n\u011Bkolika metodami a bylo provedeno porovn\u00E1n\u00ED v\u00FDsledk\u016F. Zm\u011B\u0159en\u00E9 rychlosti pulzn\u00ED vlny byly v rozsahu od 4.5 a\u017E 6 m/s. Jsou ve stejn\u00E9m \u0159\u00E1du jako teoreticky vypo\u010Dten\u00E9 rychlosti a fyziologick\u00E9 hodnoty z literatury. Pro p\u0159esn\u011Bj\u0161\u00ED vyhodnoceni experiment\u016F je vhodn\u00E9 z\u00EDskat vet\u0161\u00ED po\u010Det experiment\u00E1ln\u00EDch dat."@cs . . . "Computational Mechanics 2005" . . "6"^^ . . "1 ; 6" . "[6B8DA90DFC55]" . "Rychlost pulzn\u00ED vlny v c\u00E9v\u00E1ch je jedn\u00EDm z d\u016Fle\u017Eit\u00FDch hemodynamick\u00FDch parametr\u016F pro posouzen\u00ED stavu nebo rozsahu po\u0161kozen\u00ED tepny. Pro rozum\u011Bt probl\u00E9mu, fyziologick\u00E9 hodnoty mus\u00ED b\u00FDt zn\u00E1m\u00FD. V na\u0161\u00ED laborato\u0159i je zkoum\u00E1na rychlost pulzn\u00ED vlny v pru\u017En\u00FDch elastick\u00FDch latexov\u00FDch trubic\u00EDch a tepn\u00E1ch. M\u011B\u0159en\u00ED je prov\u00E1d\u011Bno in vitro neinvazivn\u00ED metodou. Metoda je zalo\u017Een\u00E1 na sn\u00EDm\u00E1n\u00ED obrazu pulzuj\u00EDc\u00ED trubice, m\u011B\u0159en\u00EDch posunut\u00ED st\u011Bny trubice vlivem pr\u016Fchodu pulzn\u00ED vlny. Byla pou\u017Eita vysokofrekven\u010Dn\u00ED kamera se sn\u00EDmac\u00ED frekvenci 1000 sn\u00EDmk\u016F/s. Tato sn\u00EDmkovac\u00ED frekvence se uk\u00E1zala b\u00FDt dosta\u010Duj\u00EDc\u00ED pro detekci rychlosti pulzn\u00ED vlny. Z\u00EDskan\u00E1 data byla analyzov\u00E1ny n\u011Bkolika metodami a bylo provedeno porovn\u00E1n\u00ED v\u00FDsledk\u016F. Zm\u011B\u0159en\u00E9 rychlosti pulzn\u00ED vlny byly v rozsahu od 4.5 a\u017E 6 m/s. Jsou ve stejn\u00E9m \u0159\u00E1du jako teoreticky vypo\u010Dten\u00E9 rychlosti a fyziologick\u00E9 hodnoty z literatury. Pro p\u0159esn\u011Bj\u0161\u00ED vyhodnoceni experiment\u016F je vhodn\u00E9 z\u00EDskat vet\u0161\u00ED po\u010Det experiment\u00E1ln\u00EDch dat." . "\u017Ditn\u00FD, Rudolf" . . "The velocity of the pulse wave in blood vessels is one of the important hemodynamical parameters to detect health condition or a degree of damage of a diseased artery. To understand the problem, the physiological values must be known. In our laboratory, the velocity of pulse wave in elastic tubes and arteries is measured in vitro by non-invasive method. The method is based on optical measurements of displacement of the pulsating pipe wall. A crash test camera with high frame rate of 1000 Hz (fps) was used. The frame rate of 1000 Hz proved to be sufficient to register the high velocities of the pulse wave. The obtained data were evaluated by several methods and compared. The measured pulse wave velocities ranged from 4.5 to 6 m/s, thus in the same order of magnitude as values based on theoretical calculations and physiological values published in literature. However, for more precise data analysis, more experimental data (longer optical record) is recommended."@en . . . . "Vil\u00EDmek, Miloslav" . . . . "Mackov\u00E1, Hana" . "2005-11-07+01:00"^^ . "Detection of the Pulse Wave Velocity in an Elastic Tube"@en . "RIV/68407700:21220/05:02113124!RIV06-GA0-21220___" . "517529" . . "80-7043-400-7" . "21220" . "Detection of the Pulse Wave Velocity in an Elastic Tube"@en . "elastic pipe; hemodynamics; pulse wave velocity"@en . . "Detekce rychlosti pulzn\u00ED vlny v elastick\u00E9 trubici" . "Pilsen" . "P(GA106/04/1181), Z(AV0Z20760514), Z(MSM6840770012)" . . "Detekce rychlosti pulzn\u00ED vlny v elastick\u00E9 trubici"@cs . "Hrad Ne\u010Dtiny" . . "Konvi\u010Dkov\u00E1, Svatava" . "RIV/68407700:21220/05:02113124" .