Three-dimensional cameras and skeleton pose tracking for physical function assessment: A review of uses, validity, current developments and Kinect alternatives

Abstract Background Patients who survive critical illness suffer from a significant physical disability. The impact of rehabilitation strategies on health-related quality of life is inconsistent, with population heterogeneity cited as one potential confounder. This secondary analysis aimed to (1) examine trajectories of functional recovery in critically ill patients to delineate sub-phenotypes and (2) to assess differences between these cohorts in both clinical characteristics and clinimetric properties of physical function assessment tools. Methods Two hundred ninety-one adult sepsis survivors were followed-up for 24 months by telephone interviews. Physical function was assessed using the Physical Component Score (PCS) of the Short Form-36 Questionnaire (SF-36) and Activities of Daily Living and the Extra Short Musculoskeletal Function Assessment (XSFMA-F/B). Longitudinal trajectories were clustered by factor analysis. Logistical regression analyses were applied to patient characteristics potentially determining cluster allocation. Responsiveness, floor and ceiling effects and concurrent validity were assessed within clusters. Results One hundred fifty-nine patients completed 24 months of follow-up, presenting overall low PCS scores. Two distinct sub-cohorts were identified, exhibiting complete recovery or persistent impairment. A third sub-cohort could not be classified into either trajectory. Age, education level and number of co-morbidities were independent determinants of poor recovery (AUROC 0.743 ((95%CI 0.659–0.826), p < 0.001). Those with complete recovery trajectories demonstrated high levels of ceiling effects in physical function (PF) (15%), role physical (RP) (45%) and body pain (BP) (57%) domains of the SF-36. Those with persistent impairment demonstrated high levels of floor effects in the same domains: PF (21%), RP (71%) and BP (12%). The PF domain demonstrated high responsiveness between ICU discharge and at 6 months and was predictive of a persistent impairment trajectory (AUROC 0.859 (95%CI 0.804–0.914), p < 0.001). Conclusions Within sepsis survivors, two distinct recovery trajectories of physical recovery were demonstrated. Older patients with more co-morbidities and lower educational achievements were more likely to have a persistent physical impairment trajectory. In regard to trajectory prediction, the PF score of the SF-36 was more responsive than the PCS and could be considered for primary outcomes. Future trials should consider adaptive trial designs that can deal with non-responders or sub-cohort specific outcome measures more effectively.

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Accelerating global left-ventricular function assessment in mice using reduced slice acquisition and three-dimensional guide-point modelling

Journal of Cardiovascular Magnetic Resonance ◽

10.1186/1532-429x-13-49 ◽

2011 ◽

Vol 13 (1) ◽

Cited By ~ 9

Author(s):

Alistair A Young ◽

Debra J Medway ◽

Craig A Lygate ◽

Stefan Neubauer ◽

Jürgen E Schneider

Keyword(s):

Left Ventricular Function ◽

Ventricular Function ◽

Three Dimensional ◽

Left Ventricular ◽

Global Left Ventricular ◽

Global Left Ventricular Function ◽

Function Assessment ◽

Slice Acquisition

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Physical function assessment tools in pediatric rheumatology

Pediatric Rheumatology ◽

10.1186/1546-0096-6-9 ◽

2008 ◽

Vol 6 (1) ◽

Cited By ~ 12

Author(s):

Lakshmi Nandini Moorthy ◽

Margaret GE Peterson ◽

Melanie J Harrison ◽

Karen B Onel ◽

Thomas JA Lehman

Keyword(s):

Physical Function ◽

Pediatric Rheumatology ◽

Assessment Tools ◽

Function Assessment

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An Automated Three-Dimensional Bone Pose Tracking Method Using Clinical Interleaved Biplane Fluoroscopy Systems: Application to the Knee

Applied Sciences ◽

10.3390/app10238426 ◽

2020 ◽

Vol 10 (23) ◽

pp. 8426

Author(s):

Cheng-Chung Lin ◽

Tung-Wu Lu ◽

Jia-Da Li ◽

Mei-Ying Kuo ◽

Chien-Chun Kuo ◽

...

Keyword(s):

Imaging System ◽

Three Dimensional ◽

Pose Tracking ◽

Model Based ◽

X Ray Imaging ◽

Custom Made ◽

Optical Motion ◽

Optical Motion Capture ◽

Tibiofemoral Kinematics ◽

Biplane Fluoroscopy

Model-based tracking of the movement of the tibiofemoral joint via a biplane X-ray imaging system has been commonly used to reproduce its accurate, three-dimensional kinematics. To accommodate the approaches to existing clinical asynchronous biplane fluoroscopy systems and achieve comparable accuracy, this study proposed an automated model-based interleaved biplane fluoroscopy image tracking scheme (MIBFT) by incorporating information of adjacent image frames. The MIBFT was evaluated with a cadaveric study conducted on a knee specimen. The MIBFT reproduced skeletal poses and tibiofemoral kinematics that were in good agreement with the standard reference kinematics provided by an optical motion capture system, in which the root-mean-squared (Rms) errors of the skeletal pose parameters ranged from 0.11 to 0.35 mm in translation and 0.18 to 0.49° in rotation. The influences of rotation speed on the pose errors were below 0.23 mm and 0.26°. The MIBFT-determined bias, precision, and Rms error were comparable to those of the reported model-based tracking techniques using custom-made synchronous biplane fluoroscopy. The results suggested that the further use of the clinical imaging system is feasible for the noninvasive and precise examination of dynamic joint functions and kinematics in clinical practice and biomechanical research.

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Routine physical function assessment through a Branching Logic Electronic Symptom Survey (BLESS) vs. the 32-combined item HAQ-DI + WHODAS (HW) survey: A quality improvement controlled trial.

Journal of Clinical Oncology ◽

10.1200/jco.2017.35.8_suppl.136 ◽

2017 ◽

Vol 35 (8_suppl) ◽

pp. 136-136

Author(s):

Emily Tam ◽

Judy Chen ◽

Qihuang Zhang ◽

Dennis Zheng ◽

Vivian Tam ◽

...

Keyword(s):

Physical Function ◽

Controlled Trial ◽

Stage Iv ◽

High Sensitivity ◽

Clinic Visit ◽

Patient Acceptability ◽

Curative Intent ◽

Patient Reported ◽

Completion Times ◽

Function Assessment

136 Background: Routine outpatient physical function assessment can improve quality of care by prioritizing supports for specific patients. However, conventional research surveys including the 32-combined item HAQ-DI + WHODAS (HW) may be burdensome to patients. To streamline this process, we have developed BLESS, an electronic patient reported outcomes software program that utilizes PRO-ECOG and EQ-5D-3L items to screen for physical dysfunction symptoms, with follow-up questions from HW; BLESS has been demonstrated to have high sensitivity and specificity for the complete HW survey. We compared completion times and patient acceptability of BLESS vs. HW. Methods: Adult oncology outpatients of all stages at Princess Margaret Cancer Centre were allocated prospectively and alternately to receive either BLESS or HW on touchscreen tablets. Completion times were recorded and a patient acceptability survey was administered. Results: Of 225 patients analyzed from breast (19%), GI (22%), GU (12%), gynecology (16%), head/neck (12%), skin (6%) and thoracic (13%) cancer clinics, 118 (52%) patients completed BLESS and 107 (47%) completed HW. Median age was 61 (range: 18-97) years; 60% were female, 68% were Caucasian, 44% were stage IV, and 57% were treated with a curative intent. There were no statistically significant differences in demographic and clinical characteristics between the arms analyzed. Median EQ-5D-3L utility was 0.83 (0.28-1.00), median HAQ-DI was 0.13 (0-3.00) and median WHODAS was 8.3% (0-83.3%). Compared to HW, BLESS resulted in a median completion time reduction of 3.9 minutes (32% decrease; p < 0.001). Although most patients in both arms did not find the survey time-consuming nor caused the clinic visit to be more difficult, a greater proportion of BLESS patients held a stronger conviction in their answers (p = 0.02 for both comparisons). Conclusions: In comparison to traditional research tools of HW for assessing physical function,BLESS was associated with shorter administration times and improved patient acceptability, rendering BLESS more suitable for routine clinical use.

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