2022 AMI Online Salon

Radiofrequency Ablation for Intrathoracic goiter

Project Details

  • Entrant Name:  Monal Yu-Hsuan Chang
  • Client: Pi-Ling Chiang
  • Copyright:  International Journal of Hyperthermia (Taylor & Francis), 2021
  • Medium/software used: Photoshop
  • Final presentation format: journal article figure
  • Primary Audience: Radiologists

Project Description

The major aim of this illustration series was to demonstrate how radiofrequency ablation (RFA) of the thyroid gland is performed when the lesion is blocked by bony structures of the chest wall (intrathoracic goiter; ITG) by tilting the echo probe. I first tried out different angles with the 3D volume rendering model made from CT images of an example patient. I ended up with the angle that best demonstrated how the probe was tilted caudally (for ITG) and vertically (for cervical goiters). The morphology of the thyroid gland also adhered to the appearance of the example patient, in which the left lobe appeared relatively normal in size, as clinical images would be placed right next to my illustration. The client was happy with how the probe and RFA needle were placed relatively to each other, as I also performed in-plane echo-guided navigation during clinical practice. So no instruction on that was needed. The final result was published in the International Journal of Hyperthermia.