Fig. 4.1. Photograph of the equipment (Aloka 520) with the adapter and transducer for automatic scanning.
 

 
Fig. 4.2. Placing of the patient on the horizontal plane.
 

 
Fig.4.3. 15-30 degrees head retroversion. Head retroversion angle depends on the peculiarities of anatomical struc-ture of the neck.
 

 
Fig. 4.4. Placing of the water bath and ultrasound probe on the fore-part of the neck.
 

 
Fig. 4.5. Transverse scanning planes with constant scanning step. The scanning step is chosen by a researcher. There are scanning steps of 5 mm, 2 mm and 1 mm.
 
 

 
Fig.4.6. Automatic shifts of probe in sagittal (A) and transverse (B) planes.





Fig.4.7. Different scale transverse echograms of the neck and their schematic representations.
A - Scanning scale 1:1. (1=10 mm). Normal.
B - Scanning scale 1:75. Normal.
C - Scanning scale 1:50. Goiter.