Techniques for performing image-guided medical procedures using a wearable, head-mounted image display apparatus, which displays images from medical imaging equipment. The clinician views the images provided by the head-mounted image display apparatus to help in inserting medical instruments into a patients body. Examples of such medical procedures include ultrasound-guided needle/catheter procedures and laryngoscope-guided tracheal intubation. Being able to view the images while simultaneously having a direct view of the procedure site can improve procedure performance. Equipment for performing such procedures include camera laryngoscopes, transesophageal echocardiography apparatus, endoscopic imaging apparatus, x-ray fluoroscope apparatus, or medical ultrasound apparatus.
