Target ablation--image-guided therapy in prostate cancer

Area of Science:

• Oncology
• Urology
• Medical Physics

Background:

• Current prostate cancer treatments (surgery, radiation, thermal ablation) often involve whole-gland destruction.
• There is a need for less invasive ablative therapies that maintain cancer control and reduce treatment burden.

Purpose of the Study:

• To review the functional and oncologic outcomes of various focal therapy energy modalities for prostate cancer.
• To concentrate on the practical aspects of focal therapy for prostate cancer.

Main Methods:

• Literature review focusing on photodynamic therapy, HIFU, cryotherapy, focal laser ablation, electroporation, radiofrequency, and external beam radiation.
• Keywords used: photodynamic therapy, HIFU, cryotherapy, focal laser ablation, electroporation, radiofrequency, external beam radiation, organ-sparing approach, focal therapy, prostate cancer.

Main Results:

• Various energy modalities (cryotherapy, HIFU, FLA, PDT, radiofrequency) can ablate prostate tumors.
• HIFU and cryotherapy utilize sophisticated equipment but show short-term effectiveness with low morbidity.
• Electroporation is in preclinical development, and focused external beam radiation is under evaluation.

Conclusions:

• Multiple energy modalities are being developed to achieve oncologic control while preserving continence and potency.
• Comparing focal therapy approaches is challenging due to trial heterogeneity.
• Future indications for each focal therapy technique will likely be selective.