Calibration and electrical safety status of therapeutic ultrasound used by chiropractic physicians

Daniel, Dwain; Rupert, Ronald L.

doi:10.1016/s0161-4754(02)54130-0

Cited by 12 publications

(6 citation statements)

References 1 publication

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“…Inconsistencies have been previously identified between the intended and actual dosages of ultrasound [31][32][33], potentially affecting the therapeutic effect and the outcomes of trials. Of the studies identified, five reported that ultrasound machines were tested and calibrated during the study period [13,15,17,19,21] therefore this factor could be eliminated from these specific trials as a possible reason for lack of effect.…”

Section: Technical Variablesmentioning

confidence: 99%

The effectiveness of therapeutic ultrasound for musculoskeletal conditions of the lower limb: A literature review

et al. 2010

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Section: Technical Variablesmentioning

confidence: 99%

The effectiveness of therapeutic ultrasound for musculoskeletal conditions of the lower limb: A literature review

et al. 2010

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“…1). 6,[21][22][23][24] Accuracy of therapeutic US timing devices A total of eight studies assessed the timing function. The average percentage of timers found to be inaccurate was 30 .…”

Section: Multiple Tests Performedmentioning

confidence: 99%

“…4,[22][23][24][25] Of these, two reported a significant association between machine age and output inaccuracy (p , 0 . 05), 24,25 while one study reported a weak correlation with age at an intensity of 2W cm 22 (r 5 0 .…”

Section: Factors Affecting Accuracy Of Therapeutic Us Equipmentmentioning

confidence: 99%

“…Several studies have suggested biannual checks or checks being performed as frequently as monthly to ensure machine accuracy. 4,24,26 However, further research is needed to determine how frequently calibration should occur for therapists to be confident that their equipment is producing an accurate dose. One further strategy to reduce machine inaccuracy may be to provide therapists with a portable, easy to use device which allows an assessment of US output to be made regularly on site.…”

Section: Implications For Clinical Practicementioning

confidence: 99%

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The accuracy of therapeutic ultrasound equipment: a systematic review

Schabrun

Walker

Chipchase

2008

Physical Therapy Reviews

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Objectives: Because of its importance for patient safety and treatment efficacy, the volume and methodological quality of the evidence available on the accuracy of therapeutic ultrasound equipment is examined with respect to power output and timing function. Evidence for a causal relationship between ultrasound inaccuracy and machine age, brand, frequency of use and intensity settings is also examined. Methods: A systematic literature search was performed to identify observational studies examining levels of ultrasound machine inaccuracy. Methodological quality was examined using the Sheffield University hierarchy of evidence and a modified version of the McMaster University critical appraisal tool. Data was pooled using the descriptive statistics (mean, standard deviation, percentage) available in each study. Results: Eighteen studies out of 47 were retained for review. Methodological scores ranged from 2 to 15 . 5 (maximum 20). Two thirds of ultrasound machines (64 . 6%; SD 23 . 2; range 14-100%) were found to produce an inaccurate power input. The average percentage of timers found to be inaccurate was 30 . 1 and 22 . 6% at 5 and 10 min, respectively. The only variable correlated with level of machine inaccuracy was that of machine age. Discussion: The current review indicates that a significant proportion of ultrasound machines produce inaccurate power outputs or have an inaccurate timing function. This finding has implications for both clinical practice and therapeutic ultrasound research.

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“…Pesquisas revelam números incontestáveis de sua importância na clínica. De acordo com Daniel & Rupert [1], nos Estados Unidos, 72,1% dos profi ssionais quiropratas entrevistados usam ultra-som em suas clínicas, já entre os fi sioterapeutas o uso é de 94%, segundo Lindsay [2]. Segundo Roebroeck et al [3] no Canadá 94% dos fi sioterapeutas utilizam esta modalidade.…”

Section: Introductionunclassified

Importância da conformidade dos equipamentos de ultra-som terapêutico com a NBR-IEC 1689

Maciel

2018

Fisioter Bras

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The ultrasound is a much used device on physical therapy clinical practice. Studies on its effi cacy in a large group of diseases treated by physical therapy are frequently published, adopting many possible acoustic parameters with the ultrasonic equipment to obtain the cure. In a similar way many works that intend to characterize the acoustic fi eld produced by this device, as well as the evaluation of ultrasound equipments show that most part of them brings two or more parameters out of the calibration. The scope of this paper is to advise the physical therapist on the importance of the calibration and the importance of this familiarization in accordance with the NBR-IEC 1689, which is the nowadays standard in Brazil that prescribes the performance and methods of measurement of acoustic fi eld for therapeutic ultrasonic devices with frequency band from 0.5 to 5 MHz.

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Calibration and electrical safety status of therapeutic ultrasound used by chiropractic physicians

Cited by 12 publications

References 1 publication

The effectiveness of therapeutic ultrasound for musculoskeletal conditions of the lower limb: A literature review

The effectiveness of therapeutic ultrasound for musculoskeletal conditions of the lower limb: A literature review

The accuracy of therapeutic ultrasound equipment: a systematic review

Importância da conformidade dos equipamentos de ultra-som terapêutico com a NBR-IEC 1689

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