Needle identification in high-dose-rate prostate brachytherapy using ultrasound imaging modality

Area of Science:

• Medical Physics
• Radiotherapy Technology
• Image-Guided Interventions

Background:

• Accurate needle placement is critical in high-dose-rate (HDR) prostate brachytherapy.
• Uncertainties in needle tip identification can lead to compromised treatment efficacy and patient outcomes.

Purpose of the Study:

• To develop and validate a method for precise needle tip identification in real-time during HDR prostate brachytherapy.
• To address the challenges posed by uncertainties in needle positioning and angulation.

Main Methods:

• Utilized real-time ultrasound imaging during the brachytherapy procedure.
• Developed an algorithm for automated detection of the needle tip within a defined coordinate system.
• Implemented functionality to calculate the needle deflection angle for each ultrasound frame.

Main Results:

• The proposed algorithm successfully detects the needle tip in real-time ultrasound streams.
• The system accurately determines the needle deflection angle, providing crucial positional information.
• The method enhances the precision of needle localization during HDR prostate brachytherapy.

Conclusions:

• The developed real-time ultrasound-based method offers a robust solution for needle tip identification in HDR prostate brachytherapy.
• This technique has the potential to significantly improve treatment accuracy and patient safety.
• Automated needle tracking enhances the reliability of image-guided radiotherapy procedures.