Training activity information
Details
Identify, analyse and interpret the normal anatomy and haemodynamics of lower limb deep veins (Including calf veins) using:
- Doppler spectrum
- Colour spectral
- B mode
Type
Developmental training activity (DTA)
Evidence requirements
Evidence the activity has been undertaken by the trainee​.
Reflection on the activity at one or more time points after the event including learning from the activity and/or areas of the trainees practice for development.
An action plan to implement learning and/or to address skills or knowledge gaps identified.
Considerations
- Troubleshooting
- Physiology, histology and pathology of the lower limb veins (including calf veins)
- Impact of respiration and incompetent valves on Doppler spectrum, colour spectral and B mode
- Impact of thrombus on Doppler spectrum, colour and B mode ultrasound
- Artifact causes and corrections
- Limitations and pitfalls
- Consequences of misdiagnosis
Reflective practice guidance
The guidance below is provided to support reflection at different time points, providing you with questions to aid you to reflect for this training activity. They are provided for guidance and should not be considered as a mandatory checklist. Trainees should not be expected to provide answers to each of the guidance questions listed.
Before action
- What are the expected normal anatomical features and haemodynamic characteristics of the deep veins of the lower limb (including calf veins)?
- What criteria will you use to determine whether Doppler signals and vein compressibility are normal?
- What preparation will you perform to review normal lower limb deep venous anatomy and haemodynamics prior to undertaking this activity?
- How will you ensure you are considering the range of patient presentations and potential variations in normal anatomy and haemodynamics in the deep venous system?
In action
- How are you assessing the deep veins in B-mode to determine whether they are normal?
- What characteristics of their appearance tells you that they are normal?
- How are you assessing the calf veins?
- Does this differ from how you are assessing the deep veins in the thigh?
- How do the colour Doppler flow patterns correlate with the expected direction of venous blood flow? Are you observing any spontaneous flow?
- What are the characteristics of the spectral Doppler waveforms you are obtaining in the femoral and popliteal veins?
- Are you encountering any anatomical variations or challenges in visualising specific veins?
- What are the challenges and how are you adapting your technique to overcome them?
- How are you ensuring that the Doppler signals obtained are representative of the flow within the vein and not artefact?
On action
- Describe the ultrasound appearances (B-mode, Colour Doppler and Doppler spectral waveforms) you observed in the lower limb deep veins, including the calf veins.
- What were the characteristic haemodynamic features of normal deep venous flow?
- How effectively did you use the combination of Doppler spectrum, Colour Doppler, and B-mode to identify, analyse, and interpret the normal anatomy and haemodynamics of the deep veins?
- How confident were you in assessing venous compressibility and Doppler signals?
- Were there any specific venous segments or haemodynamic features that you found more difficult to assess?
- What aspects of deep venous haemodynamic interpretation will you review to improve your confidence in performing these assessments?
- Are there any Doppler techniques you want to practice further in the context of deep vein assessment?
- Are there any challenges this scan presented that you could gain advice from colleagues or revision materials on how to overcome next time?
Beyond action
- Reflect on your initial interpretations of Doppler waveforms in the deep veins.
- How has your understanding of respiratory variations and phasicity (potentially from further learning or experience) developed since this DTA?
- Can you recall specific instances where your ability to confidently identify normal deep vein haemodynamics helped you to differentiate it from subtle signs of pathology in subsequent scans?
- How has your experience drafting reports for normal deep venous scans allowed you to tailor your approach to focus on key interpretive features and ensure you gain the required information from these scans?
- Have discussions with vascular specialists or review of clinical cases enhanced your understanding of the nuances of normal deep venous haemodynamics since you completed this DTA?
Relevant learning outcomes
| # | Outcome |
|---|---|
| # 6 |
Outcome
Analyse and interpret ultrasound images with reference to haemodynamics whilst performing a range of scans. |