搜索结果: 1-12 共查到“潜水医学 Doppler”相关记录12条 . 查询时间(0.094 秒)
Gas phase formation and Doppler monitoring during decompression with elevated oxygen
decompression human
2009/7/15
Subjects in 150 man-dives were precordially monitored with a 5-MHz Doppler ultrasound bubble detector. These measurements were made during a series of dives conducted to test decompression tables that...
Doppler bubble detection and decompression sickness: a prospective clinical trial
decompression pulmonary human
2009/7/15
Decompression sickness in human beings exposed to high ambient pressure is thought to follow from gas bubble formation and growth in the body during return to low pressure. Detection of Doppler-shifte...
Transcranial Doppler ultrasound in commercial air divers: a field study including cases with right-to-left shunting
decompression air chamber Transcranial Doppler ultrasound commercial patent foramen ovale
2009/6/12
Many cases of decompression illness occur in divers using recommended decompression tables. Doppler ultrasound has been used for over 20 yr and has shown the presence of venous bubbles in asymptomatic...
Transcranial Doppler sonographic measurements of middle cerebral artery flow velocity during hyperbaric oxygen exposures
hyperbaric Transcranial Doppler seizure oxygen
2009/6/8
In the present study, experimental exposures to hyperbaric oxygen (HBO2) were performed (30-min exposure to 2.8 bar (280 kPa) pure oxygen). During all phases of the experiment, blood flow velocity in ...
Circulating bubbles and breath-hold underwater fishing divers: a two-dimensional echocardiography and continuous wave Doppler study
decompression pulmonary breath-hold
2009/6/8
Since the 1960s,decompression illness after breath-hold diving has been widely debated. The aim of this study was to detect circulating bubbles after breath-hold diving in underwater fishing divers. W...
Doppler-echocardiography study of cardiac function during a 36 atm (3,650 kPa) human dive
saturation pulmonary cardiac output human
2009/6/8
To determine the influence of a saturation dive on cardiac function, Doppler-echocardiographic measurements were compared at sea level and during a 36 atm (3,650 kPa) He-O2 dive (gas density: 7 g/lite...
Quantification of the dermal vascular response to hyperbaric oxygen with laser-Doppler flowmetry
CO2 carbon dioxide transcutaneous oxygen decompression multiplace hyperbaric air chamber
2009/6/8
The vasoconstrictive response to hyperbaric oxygen (HBO2) therapy was non-invasively quantified in eight healthy volunteers at 1.95 and 2.5 atm abs (197.5 and 253.2 kPa; multiplace chamber, air enviro...
Doppler-echocardiographic findings in professional divers
saturation exercise cardiac commercial echocardiographic
2009/6/5
To determine if professional diving leads to morphologic and/or functional cardiologic changes, Doppler-echocardiography was performed in 20 professional saturation divers (average 15 yr diving experi...
Menstrual cycle dependent right-to-left shunting: a single-blinded transcranial Doppler sonography study
Prospective Studies Regional Blood Flow Risk Factors Single-Blind Method Ultrasonography Doppler Transcranial Valsalva Maneuver
2009/6/2
Menstruation has been described as risk factor for neurological decompression sickness in divers. In considering this for paradoxical gas embolism, we hypothesized that there may be a link between cyc...
Doppler detection of circulating bubbles in attendants, decompressed on oxygen, following routine hyperbaric treatments
Hyperbaric Oxygenation Decompression doppler bubble tender staffing Occupational Exposure Occupational
2009/5/26
A pilot study was carried out to examine the
incidence of doppler-detectable circulating bubbles in hyperbaric
chamber attendants following routine chamber
treatment profiles. Bubbles were detected...
Doppler bubble detection after hyperbaric exposure
Bubbles decompression illness investigations
2009/5/25
A review of the literature on the use of
transcutaneous Doppler to detect circulating venous
bubbles occurring after hyperbaric exposure, with
emphasis on the detection of bubbles occurring after
...
Doppler studies on the dive schedules of the pearl divers of Broome
doppler commercial Occupational oxygen
2009/5/25
Before 1990 the drift divers of the 13 pearling
companies working out of Broome all dived using the
methods described in another paper but with individual
variations, such as the rate of ascent, fr...