Use of the Scolioscan for Quantitative Evaluation of Spinal Deformity - A Validity Study on Patients With Scoliosis
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 952
- 试验地点
- 1
- 主要终点
- Cobb angle
研究概览
简要总结
The purpose of the study is to investigate the validity of Scolioscan for quantitative assessment of curve severity in scoliosis using x-ray radiographs as the gold standard.
详细描述
Scoliosis is a three dimensional spinal deformity, in both the coronal plane, sagittal and transverse planes. Quantitative assessment of curve severity in scoliosis is important for patient management. At present, Cobb angle measurement in the frontal plane using standing postero-anterior X-ray radiograph is the gold standard for scoliosis evaluation. Taking x-ray involves irradiation and is not without risk especially over repeated exposures for follow-up visits. With advancement of ultrasound technology which is radiation-free and noted to be useful as a tool for musculoskeletal imaging, an ultrasound system designed for evaluation of spinal deformity called Scolioscan has been developed. It comprises of a freehand 3D ultrasound imaging system with an enhanced frame structure for supporting the patient to maintain the posture during scanning and a software for measuring curve deformity in terms of Cobb angles. Previous studies on validity of ultrasound assessment for back deformity involved a pilot group of subjects. Based on these promising pilot results, we plan to carry out a formal study to investigate the validity of Scolioscan for quantitative assessment of curve severity in scoliosis using x-ray radiograph as the gold standard for comparison.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 8 Years 至 40 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Scoliosis patients between 8-40 years old
- •Patients with body mass index (BMI) <23 kg/m2
- •Patients with standing height between 1 m - 2 m
排除标准
- •Pregnant women or women after pregnancy before return of the menstrual period.
- •Subjects with skin disease such as skin cancer, psoriasis or a history of skin disease
- •Subjects with fracture or wound that affect application of the probe of Scolioscan during scanning
- •Subjects with Ferromagnetic implants
- •Subjects with pacemakers, implanted pain modulators, implanted insulin delivery systems, cochlear implant, and any defibrillator
- •Subjects with surgery done for the spine
- •Subjects with winged scapula or other irregularity of back contour that precludes satisfactory skin contact of the machine probe during the scanning procedure
- •Subjects who cannot stand steadily on the device during the examination
- •Subjects with allergy to aqueous gel used for ultrasound scanning
结局指标
主要结局
Cobb angle
时间窗: Baseline
Curve deformity measurement in terms of Cobb angles assessed by Scolioscan will be correlated with those assessed with conventional x-ray radiographs. The correlation will be compared between: 1. mild and severe curves 2. thoracic and lumbar curves 3. low BMI and high BMI subgroups
次要结局
未报告次要终点
研究者
Tsz-ping Lam
Assistant Professor (Clinical)
Chinese University of Hong Kong