Femoral Vein Doppler Ultrasound Probe Positioning | Lower Limb Veins USG Scanning Technique

Femoral Vein Doppler Ultrasound Probe Positioning | Lower Limb Veins USG Scanning Technique
- Patient Positioning: Have the patient lie supine (on their back) with the leg of interest externally rotated (leg turned outward).
Expose the groin area, ensuring privacy with draping.
- Probe Selection: For most adults, a linear high-frequency probe (often between 7-12 MHz) is ideal. It provides good resolution for superficial structures like the femoral vein.
- Probe Orientation: Start with the probe in the groin crease in a transverse (horizontal) orientation, also known as a short-axis view. This will allow you to view the vessel in cross-section.
- The indicator on the probe should be pointing towards the patient's right side for standard orientation.
- Search for the 'Mickey Mouse sign'. The femoral vein represents Mickey's head, while the femoral artery on the lateral side and the long saphenous vein on the medial side depict his ears. The femoral artery will be seen pulsating. The femoral vein and LSV will compress when probe pressure is applied. The femoral artery is not compressible with probe pressure.
- Press down on the vein using the probe. If the vein fully compresses, there's no thrombus. If there's only partial or no compression, a thrombus is present.
Capture an image without applying compression and another with compression.
- Move the probe down towards the mid thigh in transverse plane.
Apply intermittent compression, for instance, every 1 cm, to check for any thrombus.
- Continue scanning in a Transverse view.
Trace the path of the femoral vein towards the knee, applying compression at intervals.
- As you approach the bottom third of the thigh, the femoral vein moves into the adductor canal. This makes it harder to compress the vein against the femur. To aid compression, use your free hand beneath the leg, pushing upward against the probe.
Capture two images: one without applying compression and another while applying compression.
- Now examine the femoral vein in Longitudinal view. Return to the groin area, identify the femoral vein initially in Transverse view, then rotate the probe 90º clockwise to switch to LS.
Trace the femoral vein all the way down to the knee. Be on the lookout for small non-occlusive thrombi along the vessel wall, particularly near the valves.
- Activate the colour Doppler, and adjust the Pulse Repetition Frequency (PRF: often in the range of 1 to 3 kHz), colour gain (mid-range setting), and wall filter, etc., to enhance edge clarity and prevent colour flow from spilling out of the vein.
Re-scan the femoral vein in LS using colour, inspecting for filling defects, i.e., non-occlusive thrombi. Document any irregularities found (thrombus size, lymph nodes, etc.). Capture one or two illustrative images.

[@DrSamsImagingLibrary]

Femoral Vein Doppler Ultrasound Normal Vs Abnormal Image Appearances | Deep Vein Thrombosis USG Scan: kzbin.info/www/bejne/f6nMoKh3rMiJrMU

[@domenicogiannattasio9037]

many thanks for sharing! Very clear explications and also probe positioning is very very important!

[@DrSamsImagingLibrary]

Most Welcome and thanks for watching!

[@gittayusuf2417]

Thank you Dr Sam

[@DrSamsImagingLibrary]

Most Welcome!

[@Yourgobu-gp4lk]

Very helpful sir thanks ☺️

[@DrSamsImagingLibrary]

Thanks forr watching!

[@punamofficialchannel1349]

Thanks sir ❤

[@DrSamsImagingLibrary]

Most Welcome!

[@sabakhanam5998]

Very interesting 👌🏻

[@DrSamsImagingLibrary]

Thanks For Watching!

[@aineebutt2724]

Thanks dr Sam. Please make video on varicose veins

[@DrSamsImagingLibrary]

Most Welcome! You can watch this video on varicose veins: kzbin.info/www/bejne/Y2XXe5qfjMatoKM

[@ReemMohammed-cb2no]

Thank you very much We need more information about Doppler

[@DrSamsImagingLibrary]

Thanks for watching!

[@yasmeenrashid7654]

Plz ultrasound physics basic

[@RadiologyVibes123]

Ok

[@naserwesal4277]

Please share more vedios about doppler us Thank u so much And also please share some books about us to enhance my knowledge on us Your follower from AFGHANISTAN THANKS A WORLD SIR ❤

[@DrSamsImagingLibrary]

Thank you for watching! Yes, more doppler videos will be uploaded in the future. "Ultrasound: The Requisites" is a great book for learning ultrasound.

[@naserwesal4277]

Thanks a million sir,

[@RadiologyVibes123]

Yes

[@UmeshBhoyar-qy8vc]

Sir how can i contact u....sir its urgent

[@DrSamsImagingLibrary]

You can reach out on Facebook. facebook.com/drsamsimaginglibrary/

[@KhalidJamal-mu2si]

SIR MERA RENAL TINY CONCRETIONS AYA HAI USG ME , BUT RADIOLOGIST DIDN'T MENTIONED ANY SIZE NOT EVEN 1MM , IS THIS STONE ? YA FIR KYA HAI??? KACHRA GANDAGI??

[@DrSamsImagingLibrary]

Yes, tiny concretions refer to stones. Please consult with your Urologist if you feel pain, discomfort, have fever or any other symptoms.

[@KhalidJamal-mu2si]

@@DrSamsImagingLibrary BUT NO ANY SIZE MENTIONED NOT EVEN 1MM !! ??

[@rudranilghosh6190]

Sir I am currently pursuing Masters degree in Medical Imaging technology from India🇮🇳🇮🇳, I want to be a sonographer what should be my next step??

[@DrSamsImagingLibrary]

Congratulations on pursuing a Master's degree in Medical Imaging Technology. Obtain more hands on experience amd acquire practical skills. If you are interested in working in US or Canada, you can check out ARDMS (US), CSDMS (Canada). Best Wishes!

[@rudranilghosh6190]

@@DrSamsImagingLibrary thanks for your detailed reply sir🙏🏻❤️

[@UltraSound-sc7un]

Next video bowel reporting plze sir

[@DrSamsImagingLibrary]

Yes it will be uploaded in the future