Type:
Educational Exhibit
Keywords:
Pathology, Technical aspects, Education, Ablation procedures, Ultrasound, Percutaneous, Thyroid / Parathyroids, Interventional non-vascular, Head and neck
Authors:
I. CASES SUSARTE, C. Vázquez Ólmos, S. Torres del Rio, I. M. González Moreno, M. J. GAYÁN BELMONTE, A. García Chiclano, C. Botía González, B. Márquez Argente del Castillo; MURCIA/ES
DOI:
10.26044/ecr2019/C-1411
Findings and procedure details
Our experience with RFA consisted of 2 patients with benign (anatomopathological diagnosis) predominantly solid thyroid nodules who were admitted to our medical center.
Patients were complaining about either cosmetic or pressure symptoms.
The RFA procedure was performed by one of the two neuroradiologists of our Department,
with 10 and 15 years of thyroid US experience.
No major or minor complications were observed.
Follow-up and outcome assessment (Fig.
6-11).
We performed ultrasound controls at a month,
3 months,
6 months and 12 months,
assessing the reduction of the volume of the nodule (Vol = πabc / 6) according to the formula (Initial volume-Last volume) / Initial volume; and changes in the Doppler signal.
Table 1.
Percentage of nodule volume reduction.
Patient
|
Control at month
|
Control at 3 months
|
Control at 6 months
|
Control at 1 year
|
1
|
41.6 %
|
70 %
|
69 %
|
77.4 %
|
2
|
53.3 %
|
78.6 %
|
74.2 %
|
84%
|
*In all the nodules,
we assessed a diminution of the Doppler signal.
The mean volume reductions at 1 year were 77.4% and 84%,
respectively.
In the successive controls,
we could verify,
with the reduction of the volume of the nodule,
an increasingly lower echogenicity,
although there were isoechoic areas that we related to untreated units,
which correspond to areas with preserved Doppler signal,
and which in the future could represent a site of regrowth of the nodule.
Both patients have reported improvement in pressure symptoms and cosmetic symptoms.