Department of Physical Therapy, College of Health Sciences, Midwestern University, Downers Grove, IL, USA.
Department of Physical Therapy, College of Health Sciences, Midwestern University, Downers Grove, IL, USA.
Musculoskelet Sci Pract. 2023 Jun;65:102771. doi: 10.1016/j.msksp.2023.102771. Epub 2023 Apr 29.
Advancement in ultrasound imaging technology has led to the development of handheld devices that are more accessible to physical therapists due to decreased cost, reduced size, and improved ease of use relative to current established units. Physical therapists use ultrasound imaging of the lumbar multifidus muscle (LMM) to assist in rehabilitation of patients with lumbar pathology.
To identify the inter-device reliability of measuring the LMM thickness during a sustained contraction when comparing handheld (Butterfly iQ+) and established (SonoSite M-Turbo) ultrasound units. A secondary purpose was to determine the reliability of a student physical therapist using both devices.
A reliability measurement study METHOD: A blinded examiner identified the LMM at the L4 vertebral level and measured the thickness of the contracted muscle utilizing both the handheld and established ultrasound devices. ICC values were calculated to determine the inter-device and intra-rater reliability.
The study included 42 healthy participants, 30 females and 12 males, with a mean age of 38.5 years. The inter-device reliability during a sustained LMM contraction was excellent (ICC = 0.92, 95% CI: 0.87-0.94) and the intra-rater reliability was good for both the handheld (ICC = 0.85, 95% CI: 0.73-0.92) and established (ICC = 0.89, 95% CI: 0.82-0.93) ultrasound units.
Results support the use of handheld ultrasound by physical therapists and students to measure the LMM thickness. Future studies could investigate the reliability of handheld ultrasound in a variety of musculoskeletal and pathological structures important to PT practice.
超声成像技术的进步使得手持式设备得以开发，相对于当前已建立的设备，这些设备成本更低、体积更小、使用更方便，因此更易于物理治疗师使用。物理治疗师使用腰椎多裂肌（LMM）的超声成像来辅助治疗腰椎病变患者的康复。
比较手持式（Butterfly iQ+）和已建立的（SonoSite M-Turbo）超声设备，在测量持续收缩时 LMM 厚度时，确定设备间的可靠性。次要目的是确定学生物理治疗师使用这两种设备的可靠性。
可靠性测量研究
一位经过盲法训练的检查者在 L4 椎骨水平识别 LMM，并使用手持式和已建立的超声设备测量收缩肌肉的厚度。计算 ICC 值以确定设备间和内部评估者的可靠性。
该研究纳入了 42 名健康参与者，其中 30 名女性，12 名男性，平均年龄为 38.5 岁。在持续的 LMM 收缩期间，设备间的可靠性极好（ICC=0.92，95%置信区间：0.87-0.94），且手持式（ICC=0.85，95%置信区间：0.73-0.92）和已建立的（ICC=0.89，95%置信区间：0.82-0.93）超声设备的内部评估者的可靠性也较好。
结果支持物理治疗师和学生使用手持式超声来测量 LMM 厚度。未来的研究可以调查手持式超声在对 PT 实践重要的各种肌肉骨骼和病理结构中的可靠性。
