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PubMed Journals Articles About "Patient Outcomes And Gingival Blood Flow Using Laser Doppler Flowmetry Following The Use Of Episil On Free Gingival Graft Donor Sites" RSS

04:49 EST 25th February 2020 | BioPortfolio

Patient Outcomes And Gingival Blood Flow Using Laser Doppler Flowmetry Following The Use Of Episil On Free Gingival Graft Donor Sites PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Patient Outcomes And Gingival Blood Flow Using Laser Doppler Flowmetry Following The Use Of Episil On Free Gingival Graft Donor Sites articles that have been published worldwide.

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Showing "Patient Outcomes Gingival Blood Flow Using Laser Doppler" PubMed Articles 1–25 of 24,000+

Changes in Retinal Blood Flow in Response to an Experimental Increase in IOP in Healthy Participants as Assessed With Doppler Optical Coherence Tomography.

Blood flow autoregulation is an intrinsic mechanism of the healthy retinal vasculature to keep blood flow constant when ocular perfusion pressure (OPP) is changed. In the present study, we set out to investigate retinal blood flow in response to an experimental decrease in OPP in healthy participants using Doppler optical coherence tomography.


Physiological impact of nanoporous acupuncture needles: Laser Doppler perfusion imaging in healthy volunteers.

Recently, porous acupuncture (PA), which is anodized to increase its surface area for higher stimulation intensity, was developed and showed significantly improved therapeutic effects with more comfort as compared with original acupuncture (OA) in vivo. However, the impact of PA on the change of local blood flow as well as its efficacy and acceptability has not yet been confirmed in a clinical trial. In a randomized, controlled crossover clinical trial, we investigated the effects of PA on the change in loc...

Flow rate and low hematocrit measurements for in-vitro blood processing with Doppler ultrasound.

In-vitro techniques for processing of flowing blood and its components have recently emerged from microfluidics. The blood flow rate and hematocrit are two keys parameters to monitor for guaranteeing the reliability of these techniques. But, there is a lack of monitoring methods adapted to low flow rates and small tubing. In this study, we exploit minimization approaches of continuous Doppler measurements to survey blood flow rate. Combined with a packing factor model, we also estimate hematocrit from the D...


Evaluation of the Effects of Er:YAG Laser for the De-Epithelialization of the Palatal Graft in the Treatment of Multiple Gingival Recessions: A Randomized Clinical Trial.

The purposes of this split-mouth pilot study were to investigate the efficacy of the Er:YAG laser use for the de-epithelialization of the palatal graft in the treatment of the multiple gingival recessions using the bilaminar procedure and also to evaluate the patient-reported esthetic outcomes after 6 months. Five systemically healthy participants with total 28 bilateral-multiple adjacent maxillary Miller I recessions were included. The treatment was performed with the bilaminar technique [coronally advanc...

Intraoperative Doppler ultrasound as a means of preventing vertebral artery injury during Goel and Harms C1-C2 posterior arthrodesis: technical note.

Vertebral artery injury (VAI) is a potential catastrophic complication of Goel and Harms C1-C2 posterior arthrodesis. Meticulous study of preoperative spinal CT angiography together with neuronavigation plays a fundamental role in avoiding VAI. Doppler ultrasonography may be an additional intraoperative tool, providing real-time identification of the vertebral artery (VA) and thus helping its preservation.Thirty-three consecutive patients with unstable odontoid fractures underwent Goel and Harms C1-C2 poste...

Ocular blood flow by laser speckle flowgraphy to detect cerebral ischemia during carotid endarterectomy.

Laser speckle flowgraphy (LSFG) is a noninvasive technique that can measure relative blood flow velocity in the optic fundus contributed by the ophthalmic artery, the main first branch originating from the internal carotid artery (ICA). The aim of this study was to assess the feasibility of ocular blood flow measurement by LSFG to detect ischemic stress due to carotid clamping during carotid endarterectomy (CEA). Nineteen patients undergoing CEA with ocular blood flow measurement by LSFG and intraoperative ...

Effect of the menstrual cycle phase on foot skin temperature during menthol application in young women.

According to the literature, the arteriovenous anastomoses in the peripheral parts (ex. hands and feet) respond thermal stimulation susceptibly. Thus, the feet are sensitive to cold stimulation. The aim of the present study was to investigate the effect of menstrual cycle on skin temperature (T) of the foot during menthol application in young women. T and partial cutaneous blood flow in the foot, tympanic temperature, blood pressure, heart rate, thermal sensation and pleasantness during the preovulatory (P)...

Intramuscular blood flow in Duchenne and Becker Muscular Dystrophy: Quantitative power Doppler sonography relates to disease severity.

Absent or truncated dystrophin in Duchenne (DMD) and Becker (BMD) muscular dystrophies results in impaired vasodilatory pathways and exercise induced muscle ischemia. Here, we used power Doppler sonography to quantify changes in intramuscular blood flow immediately following exercise in boys with D/BMD.

Optimizing Image Quality When Evaluating Blood Flow at Doppler US: A Tutorial.

Doppler US is an essential component of nearly all diagnostic US procedures. In this era of increased awareness of the effects of ionizing radiation and the side effects of iodine- and gadolinium-based contrast agents, Doppler US is poised to play an even bigger role in medical imaging. It is safe, cost-effective, portable, and highly accurate when performed by an experienced operator. The sensitivities and specificities of Doppler US for detecting blood flow and determining the direction and velocity of bl...

Longitudinal Changes in Retinal Blood Flow in a Feline Retinal Vein Occlusion Model as Measured by Doppler Optical Coherence Tomography and Optical Coherence Tomography Angiography.

We aimed to observe longitudinal changes in retinal blood flow (RBF) and structural transformations in capillaries using Doppler optical coherence tomography (DOCT) and optical coherence tomography angiography (OCTA) in a feline retinal blood occlusion (RVO) model.

Does Salt and Mineral Content of Dead Sea Mud Affect Its Irritation Potential: A Laser Doppler Flowmetry Study.

The aim of the study was to investigate skin microcirculation, flux, and temperature changes induced by the application of Dead Sea mud (DSM) formulas with different mud salts and mineral contents using laser Doppler flowmetry. Instrumental analysis of eight over-the-shelf DSM products and four different samples of nonformulated Dead Sea mud were carried out to determine their contents of various salts and elements, including K, Na, Cl, Mg, Mn, Ca, SO, SiO, Al, Br, Fe, Hg, Cr, Co, Ni, Cu, Zn, As, Cd, Pb, an...

Application of transvaginal three-dimensional power Doppler ultrasound in benign and malignant endometrial diseases.

To investigate the value of transvaginal three-dimensional (3D) power Doppler ultrasound in the diagnosis of benign and malignant endometrial diseases.A total of 144 patients with endometrial thickness ≥4 mm were enrolled. Endometrial thickness was measured by transvaginal 3D B-mode ultrasound, while blood signals were detected by 3D power Doppler ultrasound. Endometrial volume (EV), vascularization index (VI), blood flow index (FI), and vascularization flow index (VFI) were calculated. All histopatholo...

A Randomized Comparative Clinical Study to Evaluate the Longevity of Esthetic Results of Gingival Melanin Depigmentation Treatment Using Different Laser Wavelengths (Diode, CO, and Er:YAG).

Gingival melanin hyperpigmentation is due to excessive deposition of melanin granules. The duration of pigmentation reappearance after treatment using different laser wavelengths remains controversial. The study aims to assess the longevity of gingival depigmentation (GD) and the consistency in esthetic results as three laser wavelengths (Er:YAG laser, CO laser, and diode laser, 980 nm) were used in two different groups (smokers and nonsmokers). This is attained by comparing the periods of time in each g...

Wavelet Analysis of the Temporal Dynamics of the Laser Speckle Contrast in Human Skin.

Spectral analysis of laser Doppler flowmetry (LDF) signals has been widely used in studies of physiological vascular function regulation. An alternative to LDF is the laser speckle contrast imaging method (LSCI), which is based on the same physical principle. In contrast to LDF, LSCI provides non-scanning full-field imaging of a relatively wide skin area and offers high spatial and temporal resolutions, which allows visualization of microvascular structure. This circumstance, together with a large number of...

Is cerebral monitoring useful? Focus must shift from mere observation to testing interventions.

Protecting the brain during anaesthesia is paramount. We rely on the assumption that cerebral blood flow and oxygenation are adequate if blood pressure, blood flow, haemoglobin concentration, inspired oxygen fraction and metabolic demand are within the usual ranges. Dr. Lassen defined the static cerebral autoregulation curve in 1959, Dr. Aaslid gave insight to the dynamic autoregulation by transcranial Doppler ((TCD); 1982) while Dr. Jöbsis described cerebral oximetry ((NIRS); 1977).

Evaluation of arterial digital blood flow in dairy cows with claw horn disruption lesions using Doppler ultrasonography.

Vascular changes play an important role in the pathogenesis of claw horn disruption lesions in cattle. The aim of the study was to measure arterial blood flow in the hind limbs of German Holstein cows with claw horn disruption lesions. A 10-MHz linear transducer was used to assess blood flow in the interdigital artery in the dorsal pastern region in the hind limbs of 11 non-lame and 33 lame German Holstein cows in which lameness was scored clinically. Qualitative and quantitative blood flow parameters were ...

Power Doppler can detect the presence of 7-8 day conceptuses prior to flushing in an equine embryo transfer program.

In order to determine whether differences in uterine blood flow between pregnant and non-pregnant mares can be used to predict the presence of the equine embryo prior to flushing in an embryo transfer program, power Doppler ultrasonography was used on a total of 52 mares on days 7 or 8 post-ovulation. Computer analysis of Doppler images was subsequently performed using ImageJ v1.48 software. Vascular perfusion of the endometrium was analyzed using spot meter techniques, measuring mean pixel intensity and ar...

Multi-scale, multi-domain analysis of microvascular flow dynamics.

What is the topic of this review? We describe a range of techniques in the time, frequency and information domain and their application alone and together for the analysis of blood flux signals acquired using laser Doppler fluximetry. What advances does it highlight? This review highlights the idea of using quantitative measures in different domains and scales to better mechanistically understand the complex behaviours in the microcirculation.

Selective Thermal Stimulation Delays the Progression of Vasoconstriction During Body Cooling.

The objective of this study was to test the feasibility of Selective Thermal Stimulation (STS) as a method to upregulate glabrous skin blood flow. STS is accomplished by mild surface heating along the spinal cord. 4 healthy subjects were tested in this study. Each participated in a control experiment and an intervention experiment (STS). Both experiments included establishing a maximum level of vasodilation, considered unique to a subject on a test day, and then cooling to a maximum level of vasoconstrictio...

Evaluating the Effect of Intravitreal Ranibizumab on Retrobulbar Hemodynamics by Color Doppler Ultrasonography in Neovascular AMD.

To evaluate changes in retrobulbar blood flow by using color Doppler ultrasonography (CDUS) after intravitreal ranibizumab injection in patients with neovascular age-related macular degeneration (AMD).

Vascular Function is Related to Blood Flow during High-Intensity, but Not Low-Intensity, Knee Extension Exercise.

Purpose While vascular function, assessed as the ability of the vasculature to dilate in response to a stimulus, is related to cardiovascular health, its relationship to exercise hyperemia is unclear. This study sought to determine if blood flow during submaximal and maximal exercise is related to vascular function assessed at rest. Methods Nineteen healthy adults completed multiple assessments of vascular function specific to the leg, including passive leg movement (PLM), rapid onset vasodilation (ROV), re...

Evaluation of the Effect of Hyaluronic Acid Application on the Vascularization of Free Gingival Graft for Both Donor and Recipient Sites with Laser Doppler Flowmetry: A Randomized, Examiner-Blinded, Controlled Clinical Trial.

This study aimed to evaluate with laser Doppler flowmetry (LDF) the effect of topical hyaluronic acid (HA) application on the vascularization of free gingival graft (FGG) donor and recipient sites during the early wound healing period and to investigate the effect of HA application on the dimensional change of the FGG. Forty systemically healthy, nonsmoking patients who required FGG due to insufficient amount of attached gingiva in a partial edentulism were randomly assigned to a study group: test (FGG+HA) ...

High frame rate color Doppler echocardiography: a quantitative comparison of different approaches.

Ultrasound color Doppler imaging (CDI) provides a map of the axial blood flow velocities in a 2D/3D region of interest. While CDI is clinically effective for a qualitative analysis of abnormal blood flows, e.g. for valvular disease in cardiology, it is in limited use for quantitative measures, mainly hampered by low frame rate and measurement bias. These limitations can be reduced by different approaches towards high frame rate (HFR) imaging at the expense of reduced image quality and penetration depth. The...

Influence of the Doppler effect of a periodically moving mirror on the carrier-envelope frequency of a pulse train.

We investigate the influence of the optical Doppler effect on the carrier-envelope frequency (CEF) of a mode-locked pulse train. The laser pulses are Doppler-shifted in frequency during reflection off a periodically moving mirror that is driven by an electro-dynamical exciter inside an f-2f interferometer. Depending on the relative movement of the mirror at the instant of reflection, we experimentally demonstrate a CEF shift of the laser pulses up to ±69  kHz, which is sufficient for the carrier-envelo...

Invited Commentary on "Optimizing Image Quality When Evaluating Blood Flow at Doppler US," with Response from Dr Revzin et al.


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