Pulsed Radiofrequency Treatment (PRF) of the Pudendal Nerve is discussed.

1. Ultrasound-guided pudendal nerve pulsed radiofrequency in
patients with refractory pudendal neuralgia
-Three cases report-
Case 1

2. Fig. 3. The location of the needle tip checked by fluoroscopy. FH: femoral
head, IS: ischial spine.
Fig. 2. Doppler image showing the internal pudendal artery at the level
of the ischial spine. The open arrow indicates the internal pudendal
artery, the closed arrow indicates the pudendal nerve. The arrowheads
indicate the needle. SSL: sacrospinous ligament, STL: sacrotuberous
ligament, IS: ischial spine, GM: gluteus maximus.
Fig. 1. Ultrasound-guided pudendal nerve radiofrequency. The transducer
is placed transversely over the ischial spine. The needle electrode is
advanced laterally with the in-plane approach.
Case 2

3. Fig. 4. Ultrasound image of pudendal nerve radiofrequency. The needle
is advanced near the pudendal nerve. The open arrow indicates the
internal pudendal artery, the closed arrow indicates the pudendal nerve.
The arrowheads indicate the needle. SSL: sacrospinous ligament, STL:
sacrotuberous ligament, IS: ischial spine, GM: gluteus maximus.
Case 3