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Units of Measure

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1. FDG PET/CT: EANM procedure guidelines for tumour imaging: version 2.0 with the exception that the SUV max is used in the United States as the quantitative measurement

FDG PET/CT: EANM procedure guidelines for tumour imaging: version 2.0 with the exception that the SUV max is used in the United States as the quantitative measurement GUIDELINES FDGPET/CT:EANMprocedureguidelinesfortumourimaging: version2.0 RonaldBoellaard &RobertoDelgado-Bolton & WimJ.G.Oyen &FrancescoGiammarile & KlausTatsch &WolfgangEschner &FredJ.Verzijlbergen &SallyF.Barrington & LucyC.Pike & Wolfgang A. Weber &SigridStroobants &DominiqueDelbeke &KevinJ. Donohoe &ScottHolbrook (...) /CT for oncolog- ical imaging of adult patients. PET is a quantitative imaging technique and therefore requires a common quality control (QC)/quality assurance (QA) procedure to maintain the accuracy and precision of quantitation. Repeatability and reproducibility are two essential re- quirements for any quantitative measurement and/or im- aging biomarker. Repeatability relates to the uncertainty in obtaining the same result in the same patient when he or she is examined more than once on the same

2018 Society of Nuclear Medicine and Molecular Imaging

2. Preliminary X-ray CT investigation to link Hounsfield unit measurements with the International System of Units (SI). Full Text available with Trip Pro

Preliminary X-ray CT investigation to link Hounsfield unit measurements with the International System of Units (SI). This paper lays the groundwork for linking Hounsfield unit measurements to the International System of Units (SI), ultimately enabling traceable measurements across X-ray CT (XCT) machines. We do this by characterizing a material basis that may be used in XCT reconstruction giving linear combinations of concentrations of chemical elements (in the SI units of mol/m3) which may (...) the number of Hounsfield units per (mole per cubic meter) at each tube voltage for each of 13 chemical elements. We defined a corresponding matrix in units we call molar Hounsfield unit (HU) potency, the difference in HU values that an added mole per cubic meter in a given voxel would add to the measured HU value. We built a matrix of molar potencies for each chemical element and tube voltage and performed a singular value decomposition (SVD) on these to formulate our material basis. We determined

2018 PLoS ONE

3. Measuring Frailty in Administrative Claims Data: Comparative Performance of Four Claims-Based Frailty Measures in the United States Medicare Data. Full Text available with Trip Pro

Measuring Frailty in Administrative Claims Data: Comparative Performance of Four Claims-Based Frailty Measures in the United States Medicare Data. There has been increasing effort to measure frailty in the United States Medicare data. The performance of claims-based frailty measures has not been compared.This cross-sectional study included 3,097 community-dwelling fee-for-service Medicare beneficiaries (mean age 75.6 years) who participated in the 2008 Health and Retirement Study examination (...) . Four claims-based frailty measures developed by Davidoff, Faurot, Segal, and Kim were compared against frailty phenotype, a deficit-accumulation frailty index (FI), and activities-of-daily living (ADL) dependence using Spearman correlation coefficients and C-statistics.Claims-based frailty measures were positively associated with frailty phenotype (prevalence in ≤10th vs >90th percentile: 8.0% vs 41.3% for Davidoff; 5.9% vs 53.1% for Faurot; 3.3% vs 48.0% for Segal; 2.9% vs 51.0% for Kim) and FI

2019 Biological Sciences and Medical Sciences

4. Measuring the quality of inpatient specialist consultation in the intensive care unit: Nursing and family experiences of communication. Full Text available with Trip Pro

Measuring the quality of inpatient specialist consultation in the intensive care unit: Nursing and family experiences of communication. Critically ill patients in the intensive care unit (ICU) often require the care of specialist physicians for clinical or procedural expertise. The current state of communication between specialist physicians and families and nurses has not been explored.To document the receipt of communication by nurses and family members regarding consultations performed (...) on their patient or loved one, and to quantify how this impacts their overall perceptions of the quality of specialty care.Prospective survey of 60 adult family members and 90 nurses of 189 ICU patients who received a specialist consultation between March and October of 2015 in a single academic medical center in the United States. Surveys measured the prevalence of direct communication-defined as communication conducted in person, via telephone, or via text-page in which the specialist team gathered

2019 PLoS ONE

5. The Validity and Between-Unit Variability of GNSS Units (STATSports Apex 10 and 18 Hz) for Measuring Distance and Peak Speed in Team Sports Full Text available with Trip Pro

The Validity and Between-Unit Variability of GNSS Units (STATSports Apex 10 and 18 Hz) for Measuring Distance and Peak Speed in Team Sports The aims of this study were (i) to investigate the criterion validity (vs. gold standard measurements) of the 10 and 18 Hz STATSports Apex units for measuring distances and peak speed (Vpeak) outcomes and (ii) to investigate the between-unit variability. Twenty university students were enrolled in the study (age 21 ± 2 years, weight 72 ± 6 kg, and height (...) were 1.17 ± 0.73%, 2.11 ± 1.06%, and 1.15 ± 1.23%, respectively. Vpeak measured by the Apex 10 and 18 Hz were 26.5 ± 2.3 km h-1 and 26.5 ± 2.6 km h-1, respectively, with the criterion method reporting 26.3 ± 2.4 km h-1, with a bias of 2.36 ± 1.67% and 2.02 ± 1.24%, respectively. This study is the first to validate and compare the STATSports Apex 10 and 18 Hz. Between-analysis (t-test) for total distance and Vpeak reported non-significant differences. Apex units reported a small error of around 1-2

2018 Frontiers in physiology

6. Evaluating bone remodeling by measuring Hounsfield units in a rabbit model of rhinosinusitis: is it superior to measuring bone thickness? (Abstract)

Evaluating bone remodeling by measuring Hounsfield units in a rabbit model of rhinosinusitis: is it superior to measuring bone thickness? The traditional method of evaluating bone remodeling in chronic rhinosinusitis is to measure bone thickness. The objective of this study was to determine the feasibility of measuring the computed tomography (CT) value in Hounsfield units (HU) as an method and explore whether it is superior to measuring bone thickness.The study was a prospective animal trial (...) . Twenty normal rabbits were included in the control group, and 60 rabbit models were inoculated with Staphylococcus aureus to induce rhinosinusitis. The rabbit models were divided into 3 groups according to the time of infection. All animals were euthanized after the CT exam. The samples were scored based on mucus and bone changes. The rabbits were divided into negative and positive groups according to whether bone remodeling was observed. We obtained diagnostic threshold values by measuring the bone

2018 International forum of allergy & rhinology

7. Effect of three types of horseshoes and unshod feet on selected non-podal forelimb kinematic variables measured by an extremity mounted inertial measurement unit sensor system in sound horses at the trot under conditions of treadmill and soft geotextile s Full Text available with Trip Pro

Effect of three types of horseshoes and unshod feet on selected non-podal forelimb kinematic variables measured by an extremity mounted inertial measurement unit sensor system in sound horses at the trot under conditions of treadmill and soft geotextile s Therapeutic farriery is part of the management of certain orthopaedic conditions. Non-podal parameters are important as most horses shod with therapeutic shoes are expected to perform again and the choice of shoe type may be influenced (...) by the effects they may have on gait. The aim of this prospective study was to evaluate the effects of three different shoe designs and unshod front feet on forelimb non-podal kinematic variables using an extremity mounted inertial measurement unit (IMU) system under conditions of treadmill and overground exercise on a soft geotextile surface at the trot. Ten sound horses with no underlying orthopaedic problem were instrumented with eight IMUs at distal radii, tibia and third metacarpal/tarsal regions

2018 Veterinary record open

8. Measurement properties of instruments to measure communication behaviors between mechanically ventilated patients and nurses in intensive care units: a systematic review

Measurement properties of instruments to measure communication behaviors between mechanically ventilated patients and nurses in intensive care units: a systematic review Print | PDF PROSPERO This information has been provided by the named contact for this review. CRD has accepted this information in good faith and registered the review in PROSPERO. The registrant confirms that the information supplied for this submission is accurate and complete. CRD bears no responsibility or liability (...) models, the decision to pool certain units of measurement for an outcome, the choice of effect measure, how subgroup variables are stratified etc. In order to assess the robustness of the findings of the meta-analysis, the analyses are re-run using the alternative options for each decision. If the results of both meta-analyses are similar, the results seem robust. When the conclusions of a meta-analysis significantly change, this should be discussed. Example: To test the robustness of our findings

2020 PROSPERO

9. S-maup: Statistical test to measure the sensitivity to the modifiable areal unit problem. Full Text available with Trip Pro

S-maup: Statistical test to measure the sensitivity to the modifiable areal unit problem. This work presents a nonparametric statistical test, S-maup, to measure the sensitivity of a spatially intensive variable to the effects of the Modifiable Areal Unit Problem (MAUP). To the best of our knowledge, S-maup is the first statistic of its type and focuses on determining how much the distribution of the variable, at its highest level of spatial disaggregation, will change when it is spatially

2018 PLoS ONE

10. Opportunistic osteoporosis screening via the measurement of frontal skull Hounsfield units derived from brain computed tomography images. Full Text available with Trip Pro

Opportunistic osteoporosis screening via the measurement of frontal skull Hounsfield units derived from brain computed tomography images. Osteoporosis is one of the most common chronic metabolic diseases, but detection and treatment rates are low. The aim of the current study was to evaluate the correlation between frontal skull Hounsfield unit (HU) values from brain computed tomography (CT) scans and T-scores of the lumbar spine and femoral neck from dual-energy X-ray absorptiometry (DXA

2018 PLoS ONE

11. Plate waste of adults in the United States measured in free-living conditions. Full Text available with Trip Pro

Plate waste of adults in the United States measured in free-living conditions. We analyze food-item level data collected from 50 adults from the United States using the Remote Food Photography Method® to provide the first estimates of plate waste gathered from adults across multiple consecutive meals and days in free-living conditions, and during laboratory-based meals with fixed food items and quantities. We find average plate waste in free-living conditions is 5.6 grams (7.7 kcals) per item (...) and that 3.3% of all food selected is returned as plate waste, where the percent waste figure is substantially lower than previously published plate waste estimates gathered primarily from dine-out settings in the United States such as buffets and institutional settings with limited-choice meals (e.g., school cafeterias). Plate waste from the same participants during the laboratory-based meals is significantly higher with an average of 203.2 grams of solid plate waste per meal (531.3 kcals) or 39.1

2018 PLoS ONE

12. Discrepancies in measuring bladder volumes with bedside ultrasound and bladder scanning in the intensive care unit: A pilot study Full Text available with Trip Pro

Discrepancies in measuring bladder volumes with bedside ultrasound and bladder scanning in the intensive care unit: A pilot study Intensive care unit patients are at risk for catheter-associated urinary tract infection. Earlier removal of catheters may be possible with accurate measurement of bladder volume. The purpose was to compare measured bladder volumes with bedside ultrasound, bladder scanner, and urine volume.Prospective correlational descriptive study.Surgical/trauma intensive care (...) unit and medical intensive care unit.Renal dialysis patients with less than 100 ml of urine in 24 h prior to urinary catheter removal and patients with suspected catheter obstruction.A physician trained in ultrasound and an advanced practice registered nurse trained in bladder scanning measured bladder volume; each blinded to the other's measurement. Device used first (ultrasound or bladder scanner) alternated daily. The intensive care unit team determined need for intermittent catheterization

2017 Journal of the Intensive Care Society

13. Evidence Brief - Use of Patient Reported Outcome Measures for Measurement Based Care in Mental Health Shared Decision-Making

Evidence Brief - Use of Patient Reported Outcome Measures for Measurement Based Care in Mental Health Shared Decision-Making [ November 2018 Prepared for: Department of Veterans Affairs Veterans Health Administration Quality Enhancement Research Initiative Health Services Research & Development Service Washington, DC 20420 Prepared by: Evidence-based Synthesis Program (ESP) Coordinating Center Portland VA Health Care System Portland, OR Mark Helfand, MD, MPH, MS, Director Department of Veterans (...) Affairs Health Services Research & Development Service Evidence Brief: Use of Patient Reported Outcome Measures for Measurement Based Care in Mental Health Shared Decision-Making Investigators: Kim Peterson, MS Johanna Anderson, MPH Donald Bourne, MPH Evidence-based Synthesis Program 4 Evidence Brief: Use of PROMs for MBC in Shared Decision-Making Evidence-based Synthesis Program i PREFACE The VA Evidence-based Synthesis Program (ESP) was established in 2007 to provide timely and accurate syntheses

2018 Veterans Affairs Evidence-based Synthesis Program Reports

14. May Measurement Month 2017: an analysis of blood pressure screening results from the United Arab Emirates-Northern Africa and Middle East. Full Text available with Trip Pro

May Measurement Month 2017: an analysis of blood pressure screening results from the United Arab Emirates-Northern Africa and Middle East. Elevated blood pressure (BP) is a growing burden worldwide, leading to over 10 million deaths each year. May Measurement Month (MMM) is a global initiative aimed at raising awareness of high BP and to act as a temporary solution to the lack of screening programmes worldwide. United Arab Emirates has a young population, but cardiovascular disease (CVD (...) ) is the commonest cause of death (40%). Myocardial infarction and stroke occurs at least a decade earlier than in western countries. Previous screening in our young population showed that 85% of the population had at least one CVD risk factor and about 62% of them were unaware of it. An opportunistic cross-sectional survey of volunteers aged ≥18 was carried out in May 2017. Blood pressure measurement, the definition of hypertension and statistical analysis followed the standard MMM protocol. Screening was held

2019 European Heart Journal Supplements

15. May Measurement Month 2017: an analysis of blood pressure screening results from the United Kingdom and the Republic of Ireland-Europe. Full Text available with Trip Pro

May Measurement Month 2017: an analysis of blood pressure screening results from the United Kingdom and the Republic of Ireland-Europe. Elevated blood pressure (BP), or hypertension, is a growing burden worldwide, leading to over 10 million deaths each year. May Measurement Month (MMM) is a global initiative aimed at raising awareness of high BP and acting as a stimulus to improving screening programmes worldwide. In the United Kingdom (UK) nearly 1 in 5 people, and in the Republic of Ireland (...) (RoI) 3 out of 10, have hypertension, of which a large proportion remains undiagnosed. An opportunistic cross-sectional survey of volunteers aged ≥18 years was carried out in May 2017. Blood pressure measurement, the definition of hypertension and statistical analysis followed a standardized protocol. Screenings sites in hospitals, universities, shopping centres, workplaces, sports clubs, community centres, GP practices, and pharmacies were set up across the UK and RoI as part of this initiative

2019 European Heart Journal Supplements

16. I SURVIVE: inter-rater reliability of three physical functional outcome measures in intensive care unit survivors. (Abstract)

I SURVIVE: inter-rater reliability of three physical functional outcome measures in intensive care unit survivors. We prospectively assessed inter-rater reliability of three physical function measures in Canadian intensive care unit (ICU) survivors in the inpatient setting.We enrolled patients who had an ICU length of stay of ≥ three days, were mechanically ventilated for ≥ 24 hr, and were ambulating independently before hospital admission. Weekly from ICU discharge to hospital discharge, two (...) trained frontline clinicians, blinded to each other's findings, independently performed the Physical Function ICU Test-scored (PFIT-s; score out of 10), 30-sec sit-to-stand (30STS; # of stands), and two-minute walk test (2MWT; distance in m), all within 24 hr. We calculated the intraclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable change (MDC90).We enrolled 42 patients. PFIT-s: in 36 patients with 66 paired scores, the ICC was 0.78 (95% confidence

2019 Canadian Journal Of Anaesthesia

17. Measurable Aspects Of The Retinal Neurovascular Unit In Diabetes, Glaucoma And Controls. (Abstract)

Measurable Aspects Of The Retinal Neurovascular Unit In Diabetes, Glaucoma And Controls. To study structural and angiographic optical coherence tomography (OCT) data of the macula from controls, diabetics, and those with glaucoma to evaluate neurovascular and structural relationships.This is a retrospective study of 89 eyes from 49 patients in a community-based retinal referral practice with diabetes, glaucoma, and normal controls. The patients were evaluated with OCT to include retinal nerve (...) fiber layer (RNFL) thickness measurement and ganglion cell layer (GCL) volume determination. The vascular density of the radial peripapillary capillary network and the vascular plexuses in the macula were evaluated with OCT angiography. The main outcome measures were the data obtained per disease state and the interrelationships the data displayed.The mean GCL volumes were significantly lower than the Control Group in both the Diabetic (P=.016) and Glaucoma groups (P<.001). The difference between

2019 American Journal of Ophthalmology

18. Selecting the Best Instrument to Measure Family Perceptions of End-of-Life Communication in Intensive Care Units. (Abstract)

Selecting the Best Instrument to Measure Family Perceptions of End-of-Life Communication in Intensive Care Units. Good communication with the family is a clinical imperative for high quality end-of-life (EOL) care in intensive care unit (ICU). Many interventions aim to improve EOL communication, and the choice of an outcome instrument has important implications for evaluating interventions. The purpose of this project is to search and review available instruments' psychometric properties (...) and determine which best measures family-clinician communication in the ICU.A stepwise method was used by searching 2 databases (PsycInfo and Web of Science) to identify instruments and articles that provide information about scale psychometric properties.Three instruments were identified, including Family Inpatient Communication Survey, Family Perception of Physician-Family Caregiver Communication, and Quality of Communication (QOC).Reliability estimates were high (≥ 0.79) in all 3 instruments. The QOC's

2019 American Journal of Hospice and Palliative Medicine

19. Bioimpedance-measured volume overload predicts longer duration of mechanical ventilation in intensive care unit patients. (Abstract)

Bioimpedance-measured volume overload predicts longer duration of mechanical ventilation in intensive care unit patients. Bioelectrical impedance analysis (BIA) is a technology that provides a rapid, non-invasive measurement of volume in body compartments and may aid the physician in the assessment of volume status. We sought to investigate the effect of BIA-measured volume status on duration of mechanical ventilation, 28-day mortality, and acute kidney injury requiring renal replacement (...) therapy in a population of medical/surgical patients admitted to the intensive care unit (ICU).Prospective observational study of adult patients who required mechanical ventilation within 24 hr of admission to ICU. Bioelectrical impedance analysis measured extracellular water (ECW) and total body water (TBW) and these measurements were recorded on days 1, 3, 5, and 7.A total of 36 patients were enrolled. Mean (standard deviation) age was 61.8 (21.3) years and 31% of patients were female. The majority

2019 Canadian Journal Of Anaesthesia

20. Association of Work Measures and Specialty With Assigned Work Relative Value Units Among Surgeons. (Abstract)

Association of Work Measures and Specialty With Assigned Work Relative Value Units Among Surgeons. The primary data sources used to generate and update work relative value units (RVUs) are surveys of small groups of specialists who are asked to estimate the time and intensity needed to perform surgical procedures. Because these surveys are conducted by specialty societies and rely on subjective data, these sources have been challenged as potentially biased.To assess whether objective work (...) measures are associated with a surgical procedure's assigned work RVUs and whether differences exist by surgical specialty.This cross-sectional study obtained data from the 2016 and 2017 participant use files of the American College of Surgeons National Surgical Quality Improvement Program. The 2017 physician fee schedule of the Centers for Medicare & Medicaid Services was a secondary data source. Procedures were included if they had at least 100 patient-level observations over the 2-year period. Data

2019 JAMA surgery

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