Dynamic cystography can replace cystoscopy following prostate seed implantation

Area of Science:

• Urology
• Radiology
• Oncology

Background:

• Prostate seed implantation is a common treatment for localized prostate cancer.
• Post-implantation assessment traditionally involves cystoscopy to detect misplaced seeds.

Purpose of the Study:

• To evaluate the efficacy of dynamic cystography as a replacement for cystoscopy after prostate seed implantation.
• To determine if dynamic cystography can accurately identify intravesical or urethral seeds.

Main Methods:

• Three hundred three patients undergoing real-time prostate seed implantation were studied.
• Dynamic cystography with contrast media and fluoroscopy was performed post-implantation.
• Cystoscopy was used for seed removal if migration was detected; urine samples were monitored post-discharge.

Main Results:

• Only 1% of patients (3 out of 303) had seeds detected in the bladder.
• No seeds were passed in urine after discharge.
• Dynamic cystography was well-tolerated, with no reported adverse events.

Conclusions:

• Dynamic cystography is a safe and effective alternative to cystoscopy for post-prostate seed implantation evaluation.
• This imaging modality can reliably detect misplaced intravesical or urethral seeds.
• Dynamic cystography streamlines post-procedure assessment and reduces the need for invasive cystoscopy.