scholarly journals Quantitative assessment of middle deltoid elasticity during different shoulder abduction using shear wave elastography: A preliminary study

2020 ◽  
Author(s):  
Lei Wang ◽  
Xi Xiang ◽  
Bihui Zhu ◽  
Li Qiu
Keyword(s):  
Body Mass Index ◽  
Shear Wave ◽  
Body Mass ◽  
Shear Wave Elastography ◽  
Shoulder Abduction ◽  
Reference Ranges ◽  
Distribution Method ◽  
Normal Reference ◽  
Potential Factors ◽  
Healthy Participants

Abstract Background: To measure the middle deltoid (MD) muscle elasticity during different shoulder abduction in healthy participants using shear wave elastography (SWE) and analyze the factors that may affect the MD elasticity, and then to establish the reference ranges of the normal MD elasticity during different shoulder abduction. Methods: Mean shear wave velocity (SWV) of the MD in 70 healthy participants were evaluated at left and right shoulder 0° and 90° abduction (L0°, R0°, L90°, R90°) using SWE, and potential factors that may affect MD elasticity including gender, MD thickness, age, body mass index were analyzed. Normal reference ranges of MD elasticity were calculated using normal distribution method. Results: Mean SWV was statistically significantly higher at L90° than L0°, higher at R90° than R0°, higher at R0° than L0°, and higher at R90° than L90° (all p< 0.0001). Mean SWV was significantly higher in males at both L0° (p< 0.05) and R0° (p< 0.01) than in females. Neither MD thickness, age nor body mass index influenced MD elasticity. Normal reference ranges of the MD elasticity were 2.4-3.1 m/s in males and 2.2-2.9 m/s in females at L0° and 2.5-3.3 m/s in males and 2.4-3.2 m/s in females at R0°, and were 4.9-6.7 m/s at L90°, 5.2-7.1 m/s at R90° for both males and females. Conclusions: Our results suggest that the normal MD elasticity at L0°, R0°, L90°, R90° are different and gender should be considered when determining the reference ranges of normal MD elasticity at L0° and R0° with SWE. These values may provide quantitative baseline measurements for assessment of the normal MD elasticity.

scholarly journals Quantitative assessment of middle deltoid elasticity during different shoulder abduction using shear wave elastography: A preliminary study

2020 ◽  
Author(s):  
Lei Wang ◽  
Xi Xiang ◽  
Bihui Zhu ◽  
Li Qiu
Keyword(s):  
Body Mass Index ◽  
Shear Wave ◽  
Body Mass ◽  
Shear Wave Elastography ◽  
Shoulder Abduction ◽  
Reference Ranges ◽  
Distribution Method ◽  
Males And Females ◽  
Potential Factors ◽  
Active Abduction

Abstract Background: To measure the middle deltoid (MD) elasticity in healthy participants during different shoulder abduction (with bilateral shoulder in 0 degree abduction and 90 degree active abduction) using shear wave elastography (SWE) and analyze the factors that may affect the MD elasticity, and the objective of this study is to establish the reference ranges of normal MD elasticity during different shoulder abduction by using SWE. Methods: Mean shear wave velocity (SWV) of the MD in 70 healthy right-handed participants (35 females, 35 males) were evaluated using SWE during different shoulder abduction, and potential factors that may affect MD elasticity including gender, MD thickness, age, body mass index were analyzed. Different shoulder abduction positions of each participant were as follows: (i) 0° abduction of bilateral shoulder (L0° and R0°), (ii) 90° active abduction of bilateral shoulder (L90° and R90°). Reference ranges of normal MD elasticity were calculated using normal distribution method. Results: Mean SWV was significantly higher at L90° than L0°, higher at R90° than R0°, higher at R0° than L0°, and higher at R90° than L90° (all p< 0.0001). Mean SWV was significantly higher in males at both L0° (p< 0.05) and R0° (p< 0.01) than in females. Neither MD thickness, age nor body mass index influenced MD elasticity. Normal reference ranges of the MD elasticity were 2.4-3.1 m/s in males and 2.2-2.9 m/s in females at L0° and 2.5-3.3 m/s in males and 2.4-3.2 m/s in females at R0°, and were 4.9-6.7 m/s at L90°, 5.2-7.1 m/s at R90° for both males and females. Conclusions: Our results suggest that the normal MD elasticity at L0°, R0°, L90°, and R90° with SWE are different. A separate reference range of normal MD elasticity at L0°, R0°, L90°, and R90° should be used. Moreover, the reference ranges of normal MD elasticity at L0° and R0° shoulder be divided by gender. These values may serve as quantitative baseline measurements for assessment of normal MD elasticity.

scholarly journals Determination of reference ranges for normal upper trapezius elasticity during different shoulder abduction using shear wave elastography: a preliminary study

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Lei Wang ◽  
Xi Xiang ◽  
Bi-Hui Zhu ◽  
Li Qiu
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Shoulder Abduction ◽  
Reference Ranges ◽  
Distribution Method ◽  
Upper Trapezius ◽  
Left And Right ◽  
Potential Factors ◽  
Healthy Participants

Abstract The purpose of this study was to determine the reference ranges of normal upper trapezius (UT) elasticity during different shoulder abduction using shear wave elastography (SWE). Mean shear wave velocity (SWV) of UT elasticity in eighty healthy participants were measured at left and right shoulder 0° abduction and 90° passive abduction (L0°, R0°, L90°, R90°) with SWE. The effects of potential factors (gender, UT thickness, age, and body mass index) on UT elasticity were analyzed. The reference ranges of normal UT elasticity were calculated by using the normal distribution method. UT elasticity was significantly different among various shoulder abduction (P < 0.0001). UT elasticity was significantly higher in males at both L90° (P < 0.05) and R90° (P < 0.01) than in females. The reference ranges of normal UT elasticity were 2.90–4.01 m/s at L0° and 3.01–4.29 m/s at R0°, and were 4.90–6.40 m/s in males and 4.40–6.20 m/s in females at L90°, 5.20–7.02 m/s in males and 4.71–6.80 m/s in females at R90°. Our results suggest that gender should be considered when determining the reference ranges of normal UT elasticity at L90° and R90° with SWE. These values may provide quantitative baseline measurements for the assessment of UT muscle strain in the future.

scholarly journals Quantitative assessment of normal middle deltoid muscle elasticity at various arm abduction using ultrasound shear wave elastography

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lei Wang ◽  
Xuanyan Guo ◽  
Li Tan ◽  
Qin Chen
Keyword(s):  
Body Mass Index ◽  
Shear Wave ◽  
Body Mass ◽  
Shear Wave Elastography ◽  
Deltoid Muscle ◽  
Reference Ranges ◽  
Factors Affecting ◽  
Males And Females ◽  
Potential Factors ◽  
Active Abduction

AbstractThe objective of this study is to assess the change in the normal MD elasticity using shear wave elastography (SWE) through measuring the middle deltoid (MD) elasticity in healthy participants at various arm abduction (with bilateral arms at 0 degrees abduction and 90 degrees active abduction) and analyzing the factors affecting normal MD elasticity. Mean shear wave velocity (SWV) of the MD in healthy right-handed participants were evaluated using SWE at different arm abduction, and potential factors (gender, MD thickness, age, body mass index) affecting MD elasticity were analyzed. Different arm abduction positions of each participant were as follows: (i) 0° abduction of bilateral arm (L0° and R0°), (ii) 90° active abduction of bilateral arm (L90° and R90°). Mean SWV was significantly higher at L90° than L0°, higher at R90° than R0°, higher at R0° than L0°, and higher at R90° than L90° (all P < 0.0001). SWV was significantly higher in males at both L0° (P < 0.05) and R0° (P < 0.01) than in females. Neither MD thickness, age nor body mass index influenced MD elasticity. Reference ranges of normal MD elasticity were 2.4–3.1 m/s in males and 2.2–2.9 m/s in females at L0° and 2.5–3.3 m/s in males and 2.4–3.2 m/s in females at R0°, and were 4.9–6.7 m/s at L90°, 5.2–7.1 m/s at R90° for both males and females. SWE is a feasible technique to assess normal MD elasticity at various arm abduction. Our results suggest that normal MD elasticity at L0°, R0°, L90°, and R90° with SWE are different. Moreover, these reference ranges may serve as quantitative baseline measurements for assessment of normal MD elasticity in the future.

scholarly journals Determining the effects of excess weight on renal cortical stiffness in children and adolescents with point Shear Wave Elastography

2021 ◽  
Author(s):  
Zehra Filiz Karaman ◽  
Fatih Kardas
Keyword(s):  
Body Mass Index ◽  
Children And Adolescents ◽  
Shear Wave ◽  
Body Mass ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Shear Wave Elastography ◽  
Excess Weight ◽  
The Mean ◽  
Lean Children

Aim: To determine the early effects of excess weight on renal cortical stiffness in children and adolescents using point shear wave elastography (pSWE). Materials and methods: One hundred and forty-six overweight and obese children (43.2% male; mean age, 12.6±2.9 years: range 4.3-18) and 48 lean children (27.1% male: mean age, 12.4±3.4: range 4.8-18.9) were included in the study and control group, respectively. pSWE measurements of the two kidneys were performed. The mean value of shear wave velocity was compared between groups. Results: The mean shear wave velocity was 2.79±0.53 m/s for the control subjects and 3.09±0.59 m/s for the overweight-obese subjects. The differences between the two groups were sta-tistically significant (p=0.001). There was no correlation between shear wave velocity and age or depth. A positive correlation was found between shear wave velocity and body mass index, body mass index-standard deviation score. Conclusion: Renal cortical stiffness was higher in children with excess weight than in lean children. This study is the first attempt at applying pSWE to investigate the early adverse effects of excess weight.

scholarly journals Correlation between Brodsky Tonsil Scale and Tonsil Volume in Adult Patients

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Xiaotong Lu ◽  
Junbo Zhang ◽  
Shuifang Xiao
Keyword(s):  
Mathematical Model ◽  
Body Mass Index ◽  
Body Mass ◽  
Odds Ratio ◽  
Adult Patients ◽  
The Real ◽  
Potential Factors ◽  
Positive Correlations ◽  
Accuracy Of Prediction

Purpose. To evaluate the value of Brodsky tonsil scale in predicting the objective tonsil volume and to identify the potential factors that might interfere with the accuracy of prediction. Methods. A total of 87 adult patients who underwent single tonsillectomy or uvulopalatopharyngoplasty (UPPP) procedure including tonsillectomy in our hospital between Jan 2015 and Dec 2016 were included. The data of Brodsky tonsil scale evaluated preoperatively and objective tonsil volume evaluated postoperatively were collected for analysis. Results. Among the 87 adult patients included, 85 patients underwent bilateral tonsillectomy, while only 2 underwent unilateral procedure. Therefore, a total of 172 tonsils were included. Significant positive correlations were established between Brodsky scale and objective volume for either right (R = 0.647), left (R = 0.664), or overall tonsils (R = 0.654) (all p<0.001). However, volume overlaps could be found between 2+ and 3+ tonsils. Age [odds ratio (OR) = 4.053, p=0.003] and body mass index (BMI; OR=1.740, p=0.044) were found to be independent factors that could influence the consistency between the Brodsky scale and objective volume. As a result, a formula “Index = -1.409+1.399×age+0.554×BMI” was constructed for the evaluation of the consistency. Conclusion. Tonsil grading was significantly correlated with tonsil volume; preoperative tonsil grading that reflected the real tonsil volume was regarded as the protocol for the evaluation of the tonsil size. Age and BMI were independent factors that could affect the consistency between tonsil grade and tonsil volume. A mathematical model was estimated to predict the consistency accurately.

scholarly journals Exploring Association of Breast Pain, Pregnancy, and Body Mass Index with Breast Tissue Elasticity in Healthy Women: Glandular and Fat Differences

Diagnostics ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 393
Author(s):  
Martina Dzoic Dominkovic ◽  
Gordana Ivanac ◽  
Kristina Bojanic ◽  
Kristina Kralik ◽  
Martina Smolic ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Body Mass Index ◽  
Body Mass ◽  
Breast Tissue ◽  
Shear Wave Elastography ◽  
Fatty Tissue ◽  
Breast Pain ◽  
Tissue Elasticity ◽  
Cancer Risk Factors

Breast sonoelastography is a relatively novel ultrasound (US) method that enables estimation of tissue stiffness to estimate the elasticity of normal breast tissue and seek to correlate it with well-known breast cancer risk factors. Two hundred women of different age were included in the study and completed a questionnaire about personal, familiar, and reproductive history. Glandular and fatty tissue elasticity in all breast quadrants was measured by shear wave elastography (SWE). Mean elastographic values of breast tissue were calculated and compared to personal history risk factors. Elasticity of normal glandular tissue (66.4 kilopascals (kPa)) was higher than fatty tissue (26.1 kPa) in all breast quadrants and in both breasts. Lower outer quadrant (LOQ) had the lowest elasticity values of both parenchyma and fat. Higher elasticity values of breast tissue were confirmed in the left breast than in the right breast. Glandular and fat tissue elasticity negatively correlated with body mass index (BMI). Women with mastodynia had higher glandular elastographic values compared to subjects without breast pain. Nuliparity was also associated with higher elasticity of glandular breast tissue. The results of this study are promising and could, over time, contribute to a better understanding of glandular breast tissue elasticity as a potential risk factor for breast cancer.

scholarly journals Distribution of Tri-Ponderal Mass Index and its Relation to Body Mass Index in Children and Adolescents Aged 10 to 20 Years

2020 ◽  
Vol 105 (3) ◽  
pp. e826-e834
Author(s):  
Hong Kyu Park ◽  
Young Suk Shim
Keyword(s):  
Body Mass Index ◽  
Children And Adolescents ◽  
Body Mass ◽  
Standard Deviation Score ◽  
Cross Sectional Study ◽  
Overweight And Obesity ◽  
Reference Ranges ◽  
Least Mean Square ◽  
Cross Sectional ◽  
Korean Children

Abstract Context Body mass index percentiles are widely used to determine overweight and obesity status in children and adolescents. Their limitations in clinical settings can be addressed. Objective Reference ranges for the tri-ponderal mass index percentiles of Korean children and adolescents are presented for a comparison of their clinical variables with those of body mass index. Design Cross-sectional study. Setting Korea National Health and Nutrition Examination Survey, 2007–2016. Patients Korean children and adolescents aged 10 to 20 years. Main Outcome Measures The age- and sex-specific least mean square parameters (skewness, median, and coefficient of variation) for the tri-ponderal mass index of 9749 subjects aged 10 to 20 years. Results The factors associated with metabolic syndrome, except diastolic blood pressure, were more likely to be worse in the subjects with tri-ponderal mass index values indicative of overweight status than in those with normal tri-ponderal mass index values. Body mass index tends to underestimate obesity-related comorbidities more than tri-ponderal mass index does. Conclusion The tri-ponderal mass index standard deviation score may be advantageous when defining overweight and obesity in children and adolescents.

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