scholarly journals Non – Invasive Haemoglobin Measurement

2020 ◽  
Vol 9 (2) ◽  
pp. 729-733
Keyword(s):  
Real Time ◽  
Human Body ◽  
Continuous Monitoring ◽  
Physiological Condition ◽  
The Other ◽  
Non Invasive ◽  
Haemoglobin Measurement ◽  
Invasive Method ◽  
Invasive Techniques ◽  
Invasive Measurement

Haemoglobin is one of the main constituents in characterizing the physiological condition of a human body. Currently, invasive techniques which are being used, are not suitable for real-time continuous monitoring and also include delay. On the other hand, the non-invasive method of haemoglobin measurement ensures painless and continuous real-time monitoring. This paper discusses the method and technique involved in designing a prototype for the non-invasive measurement of haemoglobin.

scholarly journals Mid-stream clean catch urine collection in newborns: a non-invasive and safe technique

2019 ◽  
Vol 6 (2) ◽  
pp. 349 ◽  
Author(s):  
Rajendra Kumar ◽  
Nithin . ◽  
Sudha Rudrappa
Keyword(s):  
Success Rate ◽  
Urine Sample ◽  
Invasive Technique ◽  
Urine Collection ◽  
Non Invasive ◽  
Invasive Method ◽  
Safe Technique ◽  
The Mean ◽  
Invasive Techniques ◽  
Mean Time

Background: The aim of this study is to determine the success rate and safety of a non-invasive technique to obtain clean-catch midstream urine samples in newborns.Methods: Prospective bedside clinical study. After obtaining written informed consent,120 consecutive newborns admitted in NICU with no dehydration, poor feeding, need for immediate urine sample by invasive method  for whom urine collection was advised for various reasons who met the inclusion criteria were included in the study with consent being taken from the parents. After adequate milk intake supra pubic and lumbar para vertebral areas were stimulated in repeated cycles of 30 s until micturition began.Results: Success rate in obtaining a midstream urine sample within 5 min. The success rate was 90%. The mean time taken to collect urine was 64.24s, for males it was 62.55s and for females 65.93s.Conclusions: The technique has been demonstrated to be safe, quick and effective. The discomfort and time consumption usually associated with bag collection methods as well as invasive techniques can be avoided.

scholarly journals Diagnostic methods for extra-temporal neocortical focal epilepsies: present and future

2010 ◽  
Vol 68 (1) ◽  
pp. 119-126 ◽  
Author(s):  
Ricardo André Amorim Leite ◽  
Maria Concépcion Garcia Otaduy ◽  
Gilson Edmar Gonçalves e Silva ◽  
Maria Lúcia Brito Ferreira ◽  
Maria de Fátima Vasco Aragão
Keyword(s):  
Cerebral Metabolism ◽  
Diagnostic Methods ◽  
Epileptogenic Zone ◽  
Proton Spectroscopy ◽  
Non Invasive ◽  
Surgical Evaluation ◽  
Invasive Method ◽  
Almost All ◽  
Invasive Techniques ◽  
Video Eeg

The progress of epilepsies diagnosis has been great, but, amongst the diagnostic detailing that demand research, one of the most important is the essential lateralization and localization of epileptogenic zone, considered as the cerebral cortex region, that removed, will result in a free state of seizures. The present study aims to analyze the possible uses of proton spectroscopy for clinical and pre-surgical evaluation of focal extratemporal epilepsies, since this group presents the highest difficulty degree for lateralizing and locating epileptogenic zones. In almost all cases, a non invasive diagnosis can be performed using routine electroencephalography, video-electroencephalography - considered as gold standard, and magnetic resonance imaging. However, when the results of these exams are contradictory, some patients need invasive techniques, as the intra-cranial video-EEG, using deep electrodes, sub-dural strip and grid, that are associated with increased diagnostic cost and risk of complications, as cerebral hemorrhages and intra-cranial infections. Proton spectroscopy appears as a possibility, given its capacity to evaluate cerebral metabolism, by N-acetyl-aspartate (NAA), creatine (Cre) and choline (Cho) concentrations, amongst other metabolites. This non invasive method may provide time reduction of this evaluation and reliable level improvement for this topographical diagnosis.

scholarly journals Non-Invasive Continuous Measurement of Haemodynamic Parameters—Clinical Utility

2021 ◽  
Vol 10 (21) ◽  
pp. 4929
Author(s):  
Aleksandra Bodys-Pełka ◽  
Maciej Kusztal ◽  
Maria Boszko ◽  
Renata Główczyńska ◽  
Marcin Grabowski
Keyword(s):  
Clinical Utility ◽  
Everyday Clinical Practice ◽  
Non Invasive ◽  
Haemodynamic Parameters ◽  
Cardiac Procedures ◽  
New Findings ◽  
Evaluation And Monitoring ◽  
Invasive Techniques ◽  
Further Development ◽  
Invasive Measurement

The evaluation and monitoring of patients’ haemodynamic parameters are essential in everyday clinical practice. The application of continuous, non-invasive measurement methods is a relatively recent solution. CNAP, ClearSight and many other technologies have been introduced to the market. The use of these techniques for assessing patient eligibility before cardiac procedures, as well as for intraoperative monitoring is currently being widely investigated. Their numerous advantages, including the simplicity of application, time- and cost-effectiveness, and the limited risk of infection, could enforce their further development and potential utility. However, some limitations and contradictions should also be discussed. The aim of this paper is to briefly describe the new findings, give practical examples of the clinical utility of these methods, compare them with invasive techniques, and review the literature on this subject.

A New Approach for a Real-Time Non-Invasive Fatigue Assessment System for Automated Driving

2018 ◽  
Vol 62 (1) ◽  
pp. 1669-1673 ◽  
Author(s):  
Anna Feldhütter ◽  
Alexander Feierle ◽  
Luis Kalb ◽  
Klaus Bengler
Keyword(s):  
Real Time ◽  
Driving Simulator ◽  
Tracking System ◽  
Assessment System ◽  
Automated Driving ◽  
New Approach ◽  
Fatigue Assessment ◽  
Non Invasive ◽  
State Dependent ◽  
Invasive Method

Vehicles with conditional automation will be introduced to the market in the next few years. However, the effect of fatigue as one component of the driver state on the take-over performance still needs to be quantified. To examine this question, a valid, real-time capable and preferably non-invasive method for assessing fatigue while driving automatically is required. For this purpose, we developed an objective driver fatigue assessment system based on the data of a commercial remote eye-tracking system. The fatigue assessment system fuses various metrics based on eyelid opening and head movement. In a validation study with 12 participants in a driving simulator, the fatigue assessment system achieved a sensitivity of 90.0 % and a specificity of 99.2 %. This approach makes a fatigue-state-dependent study design possible and can also provide a basis for advancing existing fatigue assessment systems in automated vehicles.

Micro-embolic risks during radiofrequency and cryoballoon-ablation of atrial fibrillation -analysis from real-time carotid artery doppler monitoring-

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
R Tonegawa ◽  
K Miyamoto ◽  
N Ueda ◽  
K Nakajima ◽  
T Kamakura ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Carotid Artery ◽  
Real Time ◽  
Left Atrial ◽  
Dwell Time ◽  
Cryoballoon Ablation ◽  
Rf Ablation ◽  
Non Invasive ◽  
Invasive Method ◽  
Cryo Ablation

Abstract Background Catheter ablation of atrial fibrillation (AF) is associated with risks of silent cerebral events. However, the timing of intraprocedural micro-embolic events or differences between open-irrigated radiofrequency (RF) and cryoballoon (Cryo) ablation are unclear. Newly developed real-time carotid artery Doppler is a simple non-invasive method to detect micro-embolic signals (MESs) during ablation. Objective We investigated the timing of detecting MESs during RF and Cryo ablation of AF. Methods During the first pulmonary vein isolation (PVI) session of AF, MESs were monitored by real-time carotid artery Doppler monitoring throughout the procedure. The MES counts were collected and evaluated separately during the different steps of the procedure (Figure). Results Thirty-three AF patients (RF/Cryo: 22/11 cases, 9 females, 69.5±11.6 y.o) were included. PVI was successfully accomplished in all patients with no major complications. The MES count was significantly greater in the RF group than Cryo group (table). In both groups, left atrial (LA) access (interatrial puncture) and sheaths insertion to the LA generated a significant number of MESs (RF: 1690 of 9116 MESs [18.5% of the total MESs], Cryo: 793 of 2285 MESs [34.7%]). In the RF group, MESs were observed incessantly during PVI (Figure). The LA dwell time was significantly longer in the RF group than Cryo group (table). In the RF group, the MES count was significantly greater in the longer LA dwell time group (LA dwell time >130min) than the shorter group (464.2±179.7 vs 302.6±138.2: P=0.049). During the cryo-applications in the Cryo group, the MESs were greatest during the first cryoballoon application (625 of 2285 MESs [27.4%]). Conclusions There were more MESs during RF ablation than cryoablation. MESs were recorded during a variety of steps throughout the procedure. In the RF group, most of MESs were recorded incessantly during radiofrequency ablation and greater number of MESs were recorded in patients with longer LA dwell time. In the Cryo group, most of MESs occurred during phases with a high probability of gaseous emboli. Funding Acknowledgement Type of funding source: None

scholarly journals Non-invasive measurement of real-time oxygen flux in plant systems with a self-referencing optrode

2011 ◽  
Author(s):  
Yinglang Wan ◽  
Yinglang Wan ◽  
Eric McLamore ◽  
Lusheng Fan ◽  
Huaiqing Hao ◽  
...  
Keyword(s):  
Real Time ◽  
Oxygen Flux ◽  
Non Invasive ◽  
Invasive Measurement

scholarly journals Highly Versatile, Non-Invasive Method for Collecting Buccal DNA from Free-Ranging Non-Human Primates

2020 ◽  
Author(s):  
Aru Toyoda ◽  
Kazunari Matsudaira ◽  
Tamaki Maruhashi ◽  
Suchinda Malaivijitnond ◽  
Yoshi Kawamoto
Keyword(s):  
Sugar Solution ◽  
Failure Rates ◽  
Allelic Dropout ◽  
Buffer Solution ◽  
Non Invasive ◽  
Genome Wide ◽  
Invasive Method ◽  
Invasive Techniques ◽  
Free Ranging

ABSTRACTNon-invasive techniques for collection of DNA samples of suitable quality and quantity are important for improving the efficiency of genetic wildlife research. The development of a non-invasive method for collection of DNA samples from wild stump-tailed macaques (Macaca arctoides) is described herein. Polyester rope was cut into 10 cm pieces, which were then soaked in a 20% sugar solution to bait individuals. Rope swabs were immediately collected and transferred to a lysis buffer solution after subjects had picked up, chewed, and discarded them. DNA was later extracted from the buffer. Quantitative real-time PCR and both allelic dropout and genotype failure rates were used to compare the quantity and quality of the buccal DNA samples to those of intestinal slough cell DNA samples collected from freshly dropped feces. The buccal samples yielded significantly more DNA (27.1 ± 33.8 ng/μL) than did the fecal samples (11.4 ± 15.4 ng/μL) and exhibited lower allelic dropout and genotyping failure rates for the 10 autosomal microsatellites investigated. Buccal cell collection was also simple, inexpensive, reliable, and less time-consuming compared to fecal sampling. Thus, this method should facilitate genome-wide studies of non-human primates and other wildlife species.

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