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6.04: Zone T2 – Mid Temple

YOUR ASSIGNMENT FOR THIS LESSON

✅ Step #1: Review all content below.

✅ Step #2: Image the T2 zone on your own with your ultrasond, and using the checklist provided on this page, check off all key structures to be identified in this location

TRANSDUCER POSITION AT T2

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STANDARD T2 ORIENTATION:
TRANSVERSE & LONGITUDINAL

1 cm below brow line along the zygomaticotemporal suture line is the T2 location.

QUICK TIP
  • If you have a smaller footplate probe, scanning superiorly and inferiorly is useful until you identify the zygomatic arch. This way you can appreciate the entire anterior temporal fossa in the longitudinal view.
  • The temporal fossa deepens as we move inferiorly; you will need to increase the depth of your penetration at T2; usually, 2-3cm is sufficient; make sure you visualize the temporal bone to determine the optimal depth.

EXAMPLE OF TRANSVERSE IMAGE ACQUIRED AT T2

Standard image acquired at T2. Left T2 Position (Transverse | Left side is patient anterior). See key below for lables.*

ANATOMICAL LEGEND FOR T2 LOCATION IN TRANSVERSE

*Standard image acquired at T2 labeled with key anatomical structures.

EXAMPLE OF LONGITUDINAL IMAGE ACQUIRED AT T2

Standard image acquired at T2. Left T2 Position (Longitudinal | Top of image is patient superior, right of image is superfical). See key below for lables.*

ANATOMICAL LEGEND FOR T2 LOCATION IN LONGITUDINAL

*Standard image acquired at T2 labeled with key anatomical structures.

DOPPLER IMAGES ACQUIRED AT T2 OF KEY VESSELS

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QUICK TIP
  • In most patients, the superficial temporal vessels are easy to spot. It is generally large and will be superficial.
    • But it is easily occluded! So Use lots of gel and a light touch! 
  • In the temple, the vessels you see in the deeper layers will not be the superficial temporal artery. If you notice vessels in the deep fascial layer or below the temporalis muscle, you are looking at the middle temporal artery or deep temporal artery, respectively.
    • Considering many standard approaches for injecting fillers in the temple are to stay deep to avoid the superficial temporal artery, looking with ultrasound to visualize the anatomy of the site of injection in the temple prior to placing any filler is strongly recommended!
  • To identify the deeper temporal vessels, such as the deep temporal artery or middle temporal artery, turning the sensitivity of your Doppler to 2cm/s can be helpful, but beware, this can increase motion artifacts.

DO IT YOURSELF CHECKLIST

Structures to Identify on Ultrasound for T2

Once you have completed this checklist, mark this part of the lesson as complete.