Tube Current
Exploring the useful exposure range limits of three intraoral image receptors for various tube potential, tube current and exposure time settings
... for tube potentials larger than 60 kV (assuming that these X-ray units have an output and a total filtration similar to that of the unit used in this study and that the same focus to receptor distance is ...a ...
8
Effect of CTA Tube Current on Spot Sign Detection and Accuracy for Prediction of Intracerebral Hemorrhage Expansion
... CTA tube current level: low current ( ⬍ 350 mA) and high current ( ⱖ 350 ...of tube current showed better diagnostic accuracy for prediction of hematoma expansion by using spot ...
6
Comparison of Image Quality and Radiation Dose between Fixed Tube Current and Combined Automatic Tube Current Modulation in Craniocervical CT Angiography
... different tube current settings, the FTC and a combined ...The tube current in the shoulder level was the same (300 mA) for the 2 groups, but the combined ATCM technique automatically lowered ...
6
A SURVEY ON PHYSICAL FACTORS AND COMPRESSED BREAST THICKNESS IN VOLUNTARY MAMMOGRAPHY SCREENING USING FFDM SYSTEM IN MALAYSIA: PRELIMINARY RESULTS
... namely tube potential (kV), tube current exposure time product (mAs) and compressed breast thickness (CBT) during voluntary mammography screening using Full-Field Digital Mammography (FFDM) System in ...
6
Low tube voltage CT for improved detection of pancreatic cancer: detection threshold for small, simulated lesions
... The FOMs for each reader and scanning protocol, deter- mined from the areas under the ROC curves (Figure 6), are presented in Table 3. The highest reader-averaged FOM was acquired for protocol C using a free-choice ...
9
A questionnaire survey reviewing radiologists’ and clinical specialist radiographers’ knowledge of CT exposure parameters
... Dose reductions of between 35 and 60 % [26] have already been reported in various studies when ATCM is used in comparison to fixed tube current settings. However, such reductions are dependent on operators ...
10
Signal to noise ratios, instrument parameters and repeatability of Itrax XRF core scan measurements of floodplain sediments
... namely tube voltage, tube current and exposure time, on XRF spectra and measurement ...of tube voltage and current and six exposure times were compared using signal-to-noise ratios for ...
25
Understanding automated dose control in dynamic X-ray imaging systems
... peak tube voltage is selected according to the patient thickness and according to the thickness (if any) of copper spectral filtration; the tube current and pulse duration are selected according to ...
12
Experimental Study and Optimization of Scan Parameters That Influence Radiation Dose in Temporal Bone High Resolution Multidetector Row CT
... Helical Scanning with Different Detector Collimations In addition to overbeaming, overscanning results from helical or axial acquisitions where the x-ray exposure at the start and end of each scan exceeds the planned ...
6
Balancing Radiation Dose and Image Quality: Clinical Applications of Neck Volume CT
... The tube current in this setting was manually selected by CT tech- nologists by subjective estimation of patients’ body size, often resulting in inconsistent image ...
5
Detection and Sizing of Baffle Plate Erosion and Fretting using Eddy Current Array Technology
... It is assumed that the use of ECA probes would allow higher sensitivity to baffle plate fretting and circumferential cracking than is achievable using conventional bobbin type eddy current probes. When analysing ...
10
Visualization of Hot Wire Gas Tungsten Arc Welding Process
... low current makes the ceriated electrodes of tungsten as become popular for orbital tube and pipe welding, joining of thin sheets and welding of compact ...
6
A Safer Technique for Nasal Intubation: A Literature Review
... the current literature including but not limited to the use of a nasogastric tube, a nasopharyngeal airway, an esophageal stethoscope, a red rubber catheter, sof- tened nasal endotracheal tube, or ...
11
Current perspective for tube feeding in the elderly: from identifying malnutrition to providing of enteral nutrition
... jejunostomy tube. Although the duration of tube feeding ranged from 1 month to 8 years, they were able to follow 56 patients for 11 ...pneumonia, tube kinking, and tube clogging, as compared ...
12
Comparative Study of Tube in Tube Structure and Frame Tube Structure
... result tube in tube structure with centres tube is recommended as a structural system for tall building than bare frame structures and tube mega frame ...
6
Review of Portable CT with Assessment of a Dedicated Head CT Scanner
... Image data were acquired with reconstructed section thick- nesses of 3, 5, and 7 mm. All measured section-thickness val- ues were within 0.25 mm of the nominal section thickness value, which is well within the ...
7
Study on the Improvement of Turning Technology for Ring Groove of Flame Tube of Heavy Gas Turbine
... flame tube with a wall thickness of 5 mm, the existing technological route is improved on the cutting path, which reduces the number of tool changing, improves the production efficiency and reduces the production ...
5
Click here to download PDF version of the article !
... Various treatment options exist including intravenous antibiotics with repeated thoracocentesis, chest tube drainage, fibrinolytic therapy, VATS and thoracotomy with decortication [10,13-23]. There is no consensus ...
5
Ambulatory anesthetic care in children undergoing myringotomy and tube placement: current perspectives
... Myringotomy and tube placement is one of the most frequently performed ear, nose and throat (ENT) surgeries in the pediatric population. It is performed for persistent otitis media with effusion (OME) associated ...
9
Tubular jet generation by pressure pulse impact
... of 8 mm), (6) Ultrapure water from a Milli-Q device (Milli-Q Advantage A10 by Millipore Corporation, Massachusetts, US) (7) PVDF pressure transducer (M60-1L-M3 by Müller Instruments(Oberursel, Germany), rise time of 50 ...
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