Introduction
Pelvic health and pelvic floor dysfunction
Care pathway components
Point of care ultrasound in pelvic health
Current situation for physiotherapists using PoCUS in the UK
Aim of this paper
Pelvic health related clinical presentations; including role of PoCUS
Clinical presentation | Aims and role of physiotherapy, grouped according to (1) assessment and diagnosis, (2) treatment and (3) integration with wider MDT. Potential role for ultrasound imaging in bold |
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Urinary incontinence (stress/urge/mixed/overflow*) | (1) Differentiate actual or likely cause(s) of urinary incontinence (including psychological, anatomical/structural, muscle weakness, neurological impairment, etc.) as a foundation for subsequent management ∆ (2) Informed by the above, treatment approaches include education, behavioural strategies, pelvic floor motor re-learning, urethral support device (3) Communication of findings/management approach to referring clinician and/or other care pathway members. Where appropriate, liaison with other MDT members for investigations, red flags, surgical intervention, etc. |
Pelvic organ prolapse (POP) | (1) Differentiate the presence and severity of POP ^ ∆ (2) Informed by the above, treatment approaches including education, pelvic floor motor re-learning and strengthening, pessary intervention, voiding and defecation techniques (3) Communication of findings/management approach to referring clinician and/or other care pathway members. Where appropriate, liaison with other MDT members for investigations, red flags, surgical intervention, etc. |
Faecal incontinence/obstructive defecation/constipation/Obstetric Anal Sphincter Injury (OASIS) | (1) Differentiate actual or likely cause(s) of presenting symptoms (including psychological, anatomical/structural, muscle weakness, neurological impairment, dietary influence, side effect of medications, etc.) as a foundation for subsequent management. Visualisation of anal sphincter complex and evaluation of motor control, recruitment quality, co-ordination and endurance of the sphincter and greater pelvic floor complex (2) Informed by the above, treatment approaches include education, behavioural strategies, pelvic floor and sphincter motor re-learning, biofeedback, defecation dynamics (3) Communication of findings/management approach to referring clinician and/or other care pathway members. Where appropriate, liaison with other MDT members for investigations, red flags, surgical intervention, etc. |
Pelvic pain syndromes | (1) Differentiate actual or likely cause(s) of pain (including psychological, anatomical/structural, neurological, etc.) as a foundation for subsequent management (2) Informed by the above, treatment approaches include education, behavioural strategies, pelvic floor motor re-learning including down-training, biofeedback, etc. (3) Communication of findings/management approach to referring clinician and/or other care pathway members. Where appropriate, liaison with other MDT members for investigations, red flags, surgical intervention, etc. |
Recurrent urinary tract infections (RUTI) | (1) Differentiate actual or likely cause(s) of RUTIs (including anatomical/structural, urinary retention, dietary influence, bladder hygiene, etc., as a foundation for subsequent management (2) Informed by the above, treatment approaches include education, behavioural strategies, pelvic floor motor re-learning, voiding techniques, bladder training and hygiene, defecation dynamics, etc. (3) Communication of findings/management approach to referring clinician and/or other care pathway members. Where appropriate, liaison with other MDT members for investigations, red flags, surgical intervention, etc. |
Diastasis rectus abdominis (DRA) | (1) Differentiate the presence and severity of DRA by measuring the inter-recti distance at rest and during dynamic tests ∆ (2) Informed by the above, treatment approaches including education, abdominal motor re-learning and strengthening and intra-abdominal pressure strategies ∆ (3) Communication of findings/management approach to referring clinician and/or other care pathway members. Where appropriate, liaison with other MDT members for investigations, red flags, surgical intervention, etc. |
Advantages of PoCUS | Rationale | Comparator/traditional approach |
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Improved access to care for certain PHCP patient groups* | Non-invasive approach (i.e. PoCUS) can be well tolerated, therefore removes barrier to accessing high-quality care | Invasive procedures (e.g. digital examination or internal sEMG) which may be inappropriate or poorly tolerated |
Improved clinical validity for assessment | PoCUS allows direct visualisation (and differentiation) of relevant structures (as per Table 1) PoCUS can be performed in functional positions such as standing | Digital examination of the pelvic floor or internal surface electromyography (sEMG). However, concerns regarding reproducibility with digital examination; sEMG suffers from cross-talk as confounder for differentiating individual muscle recruitment Recumbent position for digital examination |
Improved patient education and understanding of their presentation (overlaps with next row) | Personalised education that is supported by real-time images and explanation (linked to the individual’s symptoms) can facilitate improved health literacy and potentially improved compliance with management | Explanation assisted by models, diagrams, leaflets, etc. |
Improved clinical validity for biofeedback | Allows patient to directly visualise relevant structures during pelvic floor motor re-learning, etc. (as per Table 1) | Digital examination of the pelvic floor or internal sEMG |
Enhanced treatment efficacy | PoCUS as a repeatable, objective measure to support traditional approach to clinical diagnosis. This enhances the accuracy and rationale of the clinical diagnosis reached, optimising the formulation of subsequent treatment | Clinical diagnosis based upon history taking, digital examination and sEMG |
Enhanced integration with the wider MDT | Aligning PoCUS with MDT crossover of roles enables a common approach to terminology and a better approach to communicating and understanding respective roles | Largely physiotherapy-specific terminology and findings |
Staff development and teaching | The visual biofeedback offered by PoCUS enables physiotherapists to develop knowledge and skills in PHCPs as part of wider understanding of the assessment and management of patients | Shadowing clinics involving traditional approaches described above in this column |
A framework approach to supporting point of care ultrasound
Term | Key elements | Additional information |
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Scope of practice (ScoP) | Refers to the context and scope of the ultrasound imaging performed plus the interpretation/reporting of that ultrasound imaging plus the clinical decision making informed by that ultrasound imaging | ScoP allows for specifying any UI that is not going to be performed and/or where UI is performed any interpretation/reporting not undertaken; and/or where UI is performed any clinical decision making not informed by the UI |
Education and competency | Refers to the education undertaken (both informally and formally) and subsequent assessments of competency | Transparent, purposeful and efficient education provision and competency assessments are made possible by aligning with the ScoP. Appropriate education and competency are key contributors to safety and governance |
Governance | Includes legal and professional permissions (professional and regulatory body—if different), insurance arrangements and quality assurance | These are in part informed by the ScoP, and by professional and local/national agreements and via care pathway arrangements |
A framework for PoCUS by physiotherapists in PHCPs
Scope of practice
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Gestational status or foetal imaging; this includes confirmation or exclusion of current pregnancy (including ectopic pregnancy), foetal assessment, etc.
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Prostate pathology, e.g. differentiation of benign prostatic hyperplasia from metastatic disease.
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Primary identification of fibroids, cysts or gynaecological tumours.
‘Audience’ | Utility of defining the ScoP (clinical and sonographic) |
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The referring clinician and other members of the care pathway (e.g. gynaecologist, urologist, etc.) | The referring clinician is aware of what the physiotherapist has the remit to scan and what can be inferred from the scan. Just as importantly they are aware of the limitations of the scan and that for aspects that are out of scope of practice (e.g. imaging for or identification of space occupying lesion, ectopic pregnancy, etc.) the scan is not for the purposes of either confirming or excluding |
Patient | In providing informed consent, the patient is aware of what the imaging is being performed for, but just as importantly what the imaging is not being performed for (as above) |
Professional body and regulatory body | The professional and regulatory bodies can identify that the imaging being performed and the clinical inferences derived from the scan are permissible for that clinician/profession and correspondingly can confer permission to proceed/professional indemnity coverage |
The insurer (professional body, employer or 3rd party) | The insurer can consider the scope of sonographic and clinical practice to determine whether insurance coverage can be provided and to more accurately determine any insurance premium |
The manager of the clinician | Provides clarity regarding what the clinician will be imaging and what they will be doing with that information. As such, allows for the design and staffing of existing and new care pathways |
The education provider | Provides clarity regarding the requisite education content and the necessary areas for evidencing competency. This includes the clinical indication for and the clinical implementation of the sonographic information |
The clinician | The clinician can undertake the necessary education and competency assessment requirements and can be confident that the relevant governance elements have been addressed and that clinicians upstream/downstream are aware of the remit of the scan |
Education and competency
Educational elements | Potential educational mechanisms and assessment of competency | Relevance to scope of practice |
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1. Critical understanding of how an ultrasound image is generated. Includes: • Fundamental physics as applied to ultrasound imaging • Artefacts and how to manage/interpret | Face-to-face teaching and/or provision of online/pre-reading material Multiple choice questions/coursework around imaging scenario(s) | As core underpinning principles, PoCUS users require an awareness of the limitations of the modality and how to interpret the sonographic representation of tissues |
2. Image optimisation. Includes: • The function of ultrasound machine settings (relating back to fundamental physics principles) • ‘Knobology’ and application of image optimisation strategies in practical scenarios | Include provision of online/pre-reading material. However hands-on teaching is essential—for example using phantoms, simulators, healthy subjects Overlap with 1. However hands-on assessment is essential and could be integrated with objective structured clinical examination (OSCE) format | Image optimisation techniques are essential for high-quality imaging practice and allow for adaptation to different ultrasound machines and clinical scenarios |
3. Safety and professional considerations. Includes: • Thermal and non-thermal effects; ALARA (As Low As Reasonably Achievable) principles • Infection prevention and control • Use of evidence-based protocols taking and labelling of standardised views • Reporting terminology • Secure storage of images and their integration into the electronic patient record of the wider care pathway • Awareness of benefits and limitations of ultrasound imaging and awareness of role of other imaging modalities • Indications for performing a scan; includes informed patient consent | Include provision of online/pre-reading material, although practical teaching is essential Overlap with 1 and 2. Hands-on assessment is essential and could be integrated with OSCE format | Safety considerations that are generic in ultrasound imaging and specific to pelvic region scanning Standardised image taking, recording and reporting allow for consistency with other ultrasound imagers As professionals without a pre-existing foundation in imaging, awareness of the indications for, and the role of, other imaging modalities is essential |
4. Imaging of ‘normal’ anatomy. Includes: • Ability to use standardised protocols, recognise normal anatomical variation and adapt imaging based upon factors such as high levels of adipose tissue, poor patient positioning or poorly imaging tissues | Include provision of online/pre-reading material. However hands-on teaching is essential—using simulators and more importantly healthy subjects. Requires a range of ‘normal’ presentations. Overlap with 1 and 2. However hands-on assessment is essential and could be integrated with OSCE format | Awareness of the range of ‘normal’ presentations provides a reference for identifying deviations from normal Provides an opportunity to familiarise self with strategies for addressing sub-optimal imaging prior to moving onto imaging ‘non-normal’ |
5. Imaging of ‘non-normal’ anatomy. Includes: • Awareness of the range of sonographic presentations associated with different pathologies/clinical scenarios. Where applicable, how to perform a differential sonographic diagnosis • How to adapt imaging based upon factors such as high BMI, poor patient positioning or poorly imaging tissues • Clinical relevance (or otherwise) of sonographic findings, including false positive/negaitve | Include provision of online/pre-reading material. However hands-on teaching is essential—using simulators and more importantly patients. Requires a range of different pathologies/clinical presentations Essential requirements include availability of suitably qualified and experienced mentor, access to an appropriate patient mix and directly supervised scanning Overlap with 1 and 2. However hands-on assessment is essential. Directly supervised assessment of scanning patients is the recommended assessment approach along with logbook of scans undertaken and critical reflection upon subsequent clinical decision making | Awareness of the range of pathological/clinical presentations, including spectrum of severity. Ability to adapt imaging practice to address sub-optimal imaging An awareness of how to interpret the imaging findings, implement them into clinical decision making/treatment—and communicate them to the other care pathway members (as appropriate) |
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For an individual physiotherapist or a service that currently provides PoCUS in PHCP:
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Consider whether they have undertaken the relevant foundation educational elements (column 1 of rows 1–3 in Table 5)
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Where the above identify any shortcomings, then the individual physiotherapist or service should consider either (1) undertaking learning in the requisite areas (this could be self-directed, short-course provision or existing courses in PHCP ultrasound imaging by other professionals such as midwives, obstetric/gynaecology sonographers, etc.) or (2) amending their current ScoP to align with those areas where there are not shortcomings.
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For aspects where no formal assessment of competency has previously been undertaken, consider options such as (1) undertaking and documenting formal reviews of technique, image generation and interpretation with a suitably experienced professional; (2) embedding ongoing quality assurance mechanisms such as audit, double-scanning lists, etc.
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For an individual physiotherapist or a service that is looking to provide PoCUS in PHCP:
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….Consider current educational opportunities (e.g. short-course provision or existing courses in PHCP ultrasound imaging by other professionals) and map these against the educational elements and ScoP identified in the sentence above.
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The above should allow for pragmatic addressing of educational requirements. Where possible these should include formal assessments of competency. If not possible, consider the mechanisms mentioned above.