ith the rise in popularity of ultrasound imaging, the demand for effective training tools has exponentially increased. Ultrasound models, or phantoms, are widely popular for facilitating the learning of hand-eye coordination needed for ultrasound imaging and ultrasound-guided procedures. Unfortunately, many available ultrasound models are expensive and have limited life spans. 1 Gelatin is frequently used to create phantoms because of its ease of use and low cost, and gelatin models have been used in fields such as anesthesiology, pain management, general surgery, and medicine. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] For the otolaryngologist, as well as other providers treating head and neck disorders, ultrasound in an invaluable tool for visualizing head and neck structures. It provides an inexpensive, radiationfree way to visualize the airway, identify tumors, assess thyroid nodules, and guide fine-needle aspiration of the salivary glands, lymph nodes, and thyroid. 14,18-20 However, similar to other fields of medicine in which ultrasound is used, training tools for head and neck procedures can be expensive and difficult to acquire. With this factor in mind, we developed 2 simple gelatin-based phantom models that can be used for instruction on fine-needle aspiration technique for the head and neck.
TECHNICAL INNOVATIONThe rise in popularity of ultrasound imaging has seen a corresponding increase in demand for effective training tools such as phantom models. They are especially useful for teaching and practice of invasive procedures, such as fine-needle aspiration of lesions of the head and neck. We have created 2 gelatin models out of inexpensive, commonly available materials that can be used in sequence to learn head and neck fine-needle aspiration. Fundamental skills can be learned first on the flat, rectangular model, whereas the second, cylindrical model more closely represents human anatomy and can be used to develop more advanced technique.