Prostate brachytherapy involves placing radioactive sources in the prostate. This way, the tumour receives the maximum dose of radiation while the neighbouring healthy tissue receives a minimal dose.
Prostate brachytherapy can be used as the sole treatment modality or in combination with external beam radiotherapy, depending on the stage of the disease.
High Dose Rate [HDR] brachytherapy is the choice of treatment due to the ability to conform the radiation dose to the shape of the prostate gland due to the short range effect of the radiation source. This results in a steep dose gradient which allows a high radiation dose to be delivered to the tumour, while sparing the surrounding normal tissues.
Volumetric modulated arc therapy [VMAT] involves the use of external radiation therapy beams being directed in a series of arcs or angles to allow for greater access to tumour. VMAT allows more difficult tumours, such as ones wrapped around other important structures, to be targeted precisely.
Image-guided radiation therapy [IGRT] is a radiation therapy which utilises advanced imaging equipment and computer software to accurately target tumours. This minimises the impact on surrounding healthy tissues, resulting in fewer potential side effects from treatment.
Senior Consultant Radiation Oncologist, Medical Director, MBBS (Aust), FRANZCR (Radiation Oncology)
Dr Tang obtained his medical degree from the University of Newcastle, Australia in 1998 and completed his house officer training at the Hunter Area Health Service, Australia before returning to Singapore to start his specialty training in Radiation Oncology at the National University Hospital (NUH). After obtaining his fellowship from the Royal Australian College of Radiologist (FRANZCR) in 2006, Dr Tang underwent fellowships in breast brachytherapy at University of Wisconsin and Arizona Breast Cancer Specialist Centre as well as prostate brachytherapy, skin and paediatric fellowships at Peter Maccallum Cancer Institute, Australia.
Dr. Johann Tang is an experienced radiation oncologist who aims to deliver the highest level of care to his patients. With ethics and empathy held at the core of our practice, we strive to understand your individual needs and provide care that is compassionate and responsive.
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