scholarly journals Evaluation of a novel portable three-dimensional scapular kinematics assessment system with inter and intraobserver reproducibility and normative data for healthy adults

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Miguel Angel Ruiz Ibán ◽  
Andrea Paniagua Gonzalez ◽  
Marco Muraccini ◽  
Cristina Asenjo Gismero ◽  
Alessandro Varini ◽  
...  
Keyword(s):  
Normative Data ◽  
Three Dimensional ◽  
Healthy Adults ◽  
Assessment System ◽  
Scapular Kinematics ◽  
Intraobserver Reproducibility

scholarly journals Validation of Scolioscan Air-Portable Radiation-Free Three-Dimensional Ultrasound Imaging Assessment System for Scoliosis

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2858
Author(s):  
Kelly Ka-Lee Lai ◽  
Timothy Tin-Yan Lee ◽  
Michael Ka-Shing Lee ◽  
Joseph Chi-Ho Hui ◽  
Yong-Ping Zheng
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
Outcome Measurement ◽  
Three Dimensional ◽  
3D Ultrasound ◽  
Mean Difference ◽  
Assessment System ◽  
Absolute Difference ◽  
Data Sets ◽  
Low Profile

To diagnose scoliosis, the standing radiograph with Cobb’s method is the gold standard for clinical practice. Recently, three-dimensional (3D) ultrasound imaging, which is radiation-free and inexpensive, has been demonstrated to be reliable for the assessment of scoliosis and validated by several groups. A portable 3D ultrasound system for scoliosis assessment is very much demanded, as it can further extend its potential applications for scoliosis screening, diagnosis, monitoring, treatment outcome measurement, and progress prediction. The aim of this study was to investigate the reliability of a newly developed portable 3D ultrasound imaging system, Scolioscan Air, for scoliosis assessment using coronal images it generated. The system was comprised of a handheld probe and tablet PC linking with a USB cable, and the probe further included a palm-sized ultrasound module together with a low-profile optical spatial sensor. A plastic phantom with three different angle structures built-in was used to evaluate the accuracy of measurement by positioning in 10 different orientations. Then, 19 volunteers with scoliosis (13F and 6M; Age: 13.6 ± 3.2 years) with different severity of scoliosis were assessed. Each subject underwent scanning by a commercially available 3D ultrasound imaging system, Scolioscan, and the portable 3D ultrasound imaging system, with the same posture on the same date. The spinal process angles (SPA) were measured in the coronal images formed by both systems and compared with each other. The angle phantom measurement showed the measured angles well agreed with the designed values, 59.7 ± 2.9 vs. 60 degrees, 40.8 ± 1.9 vs. 40 degrees, and 20.9 ± 2.1 vs. 20 degrees. For the subject tests, results demonstrated that there was a very good agreement between the angles obtained by the two systems, with a strong correlation (R2 = 0.78) for the 29 curves measured. The absolute difference between the two data sets was 2.9 ± 1.8 degrees. In addition, there was a small mean difference of 1.2 degrees, and the differences were symmetrically distributed around the mean difference according to the Bland–Altman test. Scolioscan Air was sufficiently comparable to Scolioscan in scoliosis assessment, overcoming the space limitation of Scolioscan and thus providing wider applications. Further studies involving a larger number of subjects are worthwhile to demonstrate its potential clinical values for the management of scoliosis.

scholarly journals Three-Dimensional Motion Analysis of the 2nd Cervical Spinous Process at End Range Cervical Rotation in Different Scapular Positions Using 3D Digitizer

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Takahiro Otsudo ◽  
Kiyokazu Akasaka ◽  
Hiroshi Hattori ◽  
Yuki Hasebe ◽  
Akihiro Tamura ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Motion Analysis ◽  
Reliable Method ◽  
Spinous Process ◽  
Three Dimensional ◽  
Healthy Adults ◽  
Upper Cervical ◽  
Spine Disorders ◽  
Cervical Rotation

Objective. The study used a 3D digitizer to determine three-dimensional motion analysis of the 2nd cervical (C2) spinous process at end range cervical rotation with the scapula in different positions. Methods. 30 healthy adults participated in this study. Different scapula positions were adopted bilaterally and positioned passively at normal resting, depression, adduction, and abduction. Under each scapula position, bilateral end range cervical rotation and displacement of the C2 spinous process were analyzed by a 3D digitizer. Results. Displacement of the C2 spinous process relative to the occiput was significantly correlated with range of cervical rotation under all scapular positions (p<0.05). However, there were no significant differences between end range cervical rotation and displacement of the C2 spinous process relative to the occiput in any scapular position. Conclusion. These results suggest that measurement of upper cervical mobility using the 3D digitizer is a reliable method that holds promise in the evaluation of people with cervical spine disorders.

Normal values of left ventricular rotational parameters in healthy adults—Insights from the three‐dimensional speckle tracking echocardiographic MAGYAR ‐Healthy Study

2019 ◽  
Vol 36 (4) ◽  
pp. 714-721 ◽  
Author(s):  
Árpád Kormányos ◽  
Anita Kalapos ◽  
Péter Domsik ◽  
Csaba Lengyel ◽  
Tamás Forster ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Normal Values ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Healthy Adults

scholarly journals Development of a Smartphone-Based Balance Assessment System for Subjects with Stroke

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 88 ◽  
Author(s):  
You-Ruei Hou ◽  
Ya-Lan Chiu ◽  
Shang-Lin Chiang ◽  
Hui-Ya Chen ◽  
Wen-Hsu Sung
Keyword(s):  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Smartphone Application ◽  
Chronic Stroke ◽  
Healthy Adults ◽  
Assessment System ◽  
Balance Performance ◽  
Balance Assessment ◽  
Artery Disease ◽  
Validity Tests

Stroke is a cerebral artery disease that negatively affects activities of daily living (ADLs) and quality of life (QoL). Smartphones have demonstrated strong potential in assessing balance performance. However, such smartphone-based tools have thus far not been applied to stroke survivors. The purpose of this study was to develop a smartphone-based balance assessment system for subjects who have experienced strokes and evaluate the system feasibility. The smartphone-based balance assessment application was developed with Android Studio, and reliability and validity tests were conducted. The smartphone was used to record data using a built-in accelerometer and gyroscope, and increased changes represented greater instability. Six postures were tested for 30 s each. Ten healthy adults were recruited in the reliability test, and the intraclass correlation coefficient (ICC) was used to analyze the within-day and between-day reliabilities. Eight subjects with chronic stroke and eight healthy adults were recruited for the validity test, in which balance performance was compared to represent the application validity. The ICC values of the reliability tests were at least 0.76 (p = 0.00). The acceleration data exhibited no difference between individuals who have experienced stroke and healthy subjects; however, all six postures were found to differ significantly between the two groups in the gyroscope data. The study demonstrates that the smartphone application provides a convenient, reliable, and valid tool for the balance assessments of subjects who have experienced chronic stroke.

Temporal parameters and patterns of the foot roll over during walking: normative data for healthy adults

1999 ◽  
Vol 10 (2) ◽  
pp. 97-108 ◽  
Author(s):  
Yves Blanc ◽  
Claude Balmer ◽  
Theodor Landis ◽  
François Vingerhoets
Keyword(s):  
Normative Data ◽  
Healthy Adults ◽  
Temporal Parameters

Normative Data for the Symbol Cancellation Test in Young Healthy Adults

2004 ◽  
Vol 11 (4) ◽  
pp. 216-219 ◽  
Author(s):  
Natasha Lowery ◽  
Daniel Ragland ◽  
Ruben C. Gur ◽  
Raquel E. Gur ◽  
Paul J. Moberg
Keyword(s):  
Normative Data ◽  
Healthy Adults

INTRA- AND INTER-EXAMINER RELIABILITY OFIN VIVOTHREE-DIMENSIONAL MEASUREMENT OF THE SCAPULAR POSES USING A MARKER-BASED LOCATOR

2018 ◽  
Vol 30 (01) ◽  
pp. 1850001
Author(s):  
Mei-Ying Kuo ◽  
Shih-Wun Hong ◽  
Jia-Da Li ◽  
Tung-Wu Lu ◽  
Horng-Chaung Hsu
Keyword(s):  
Tracking System ◽  
Three Dimensional ◽  
Optical Tracking ◽  
Optical Tracking System ◽  
Rater Reliability ◽  
Reliability Models ◽  
Scapular Kinematics ◽  
Dimensional Measurement ◽  
Shoulder Flexion ◽  
Shoulder Complex

Accurate measurement of the three-dimensional scapular kinematics is essential for a better understanding of the mechanical interactions between the scapula and the other segments of the shoulder complex. The purposes of the study were: (i) to development a marker-based scapular locator for measuring scapular poses, and (ii) to determine the intra- and inter-rater reliability of the locator in terms of intra-class correlations (ICC). Twenty-two healthy volunteers without shoulder pathologies participated in the current study. Each subject was tested separately by two raters using the marker-based scapular locator while performing static shoulder flexion at 20, 40, 60, 80, 100 and 120 degrees in the scapular plane. Two reliability models, ICC[Formula: see text] and ICC[Formula: see text], were used to analyze the intra- and inter-rater reliability for scapular rotations and translations. Good to excellent intra-user reliability for both examiners was found for the scapular rotations (range: 0.82–0.99) and displacements (range: 0.72–0.99) for different shoulder flexion conditions. Good to excellent inter-rater reliability was found for scapular rotations (range: 0.63–0.95) and translations (range: 0.70–0.95) for all conditions. The results showed that high intra- and inter-examiner reliability could be achieved for scapular rotations and translation using the marker-based scapular locator. The proposed new scapular locator with an optical tracking system will be helpful for future applications in basic and clinical studies of the shoulder complex during arm movements.

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