Our Departments
Radiation Oncology
Overview
The Radiation Oncology Department at our hospital is a leader in delivering advanced cancer treatment and promoting clinical excellence. We specialize in providing highly precise radiation therapies using state-of-the-art technology. Our care model is built on a strong multidisciplinary foundation, bringing together oncologists, radiologists, physicists, and support staff to develop personalized treatment plans tailored to each patient’s needs. With a focus on both treatment and education, we are committed to achieving the best possible outcomes while also advancing knowledge in the field of oncology.

Services
At Holy Spirit Hospital, our Radiation Oncology Department is committed to delivering highly precise, evidence-based, and patient-centric cancer treatment using cutting-edge radiation technologies. We offer a full spectrum of state-of-the-art radiotherapy modalities, designed to target cancer cells effectively while minimizing damage to healthy tissues.
Our department works in close coordination with Medical Oncology, Surgical Oncology, Radiology, Pathology, Palliative Care, and other allied services to provide holistic and multidisciplinary care to every patient.
Advanced Radiotherapy Techniques Offered:
VMAT (Volumetric Modulated Arc Therapy) / RapidArc:
High-speed, high-precision radiotherapy enabling shorter treatment sessions with minimal side effects.IGRT (Image-Guided Radiotherapy):
Uses real-time imaging to enhance accuracy and adapt to changes in tumor positioning.IMRT (Intensity Modulated Radiotherapy):
Delivers precisely shaped radiation doses to tumors, reducing exposure to surrounding healthy tissues.3DCRT (Three-Dimensional Conformal Radiotherapy):
Utilizes 3D imaging to deliver targeted treatment, conforming closely to the tumor’s shape.SGRT (Surface Guided Radiotherapy):
A non-invasive tracking system for ensuring accurate patient positioning during treatment.SBRT (Stereotactic Body Radiotherapy):
High-dose, focused radiation delivered in fewer sessions, ideal for small, well-defined tumors.SDRT (Single Dose Radiotherapy) / SRS (Stereotactic Radiosurgery):
Single-session treatments for brain and spine lesions with surgical precision, without the need for actual surgery.Brachytherapy:
Internal radiation therapy using implants or radioactive sources placed close to the tumor site.4D RT (Four-Dimensional Respiratory-Gated Radiotherapy):
Radiation delivery synchronized with a patient’s breathing cycle for optimal targeting of moving tumors (e.g., lung, liver).SCRT (Short Course Radiotherapy):
Efficient radiation regimen for specific cancers to reduce treatment duration while maintaining effectiveness.Palliative Radiotherapy:
Focused radiation aimed at relieving symptoms and improving quality of life in advanced-stage cancer patients.
Comprehensive Care Beyond Technology:
Multidisciplinary Tumor Board:
Collaborative decision-making by oncologists, radiologists, pathologists, and surgeons to ensure the best treatment pathway for every patient.Online Video Consultations:
Seamless access to expert opinions and follow-ups through secure teleconsultation services.“WeCan” – Cancer Support Group:
A compassionate support system that connects patients and caregivers with others who have undergone similar journeys, providing hope, motivation, and practical guidance.
Why Choose Holy Spirit Hospital’s Radiation Oncology Unit?
Highly trained and experienced radiation oncologists
International standard equipment and safety protocols
Personalized treatment plans tailored to each patient’s unique needs
Strong focus on psychosocial support and rehabilitation
If you or your loved one is undergoing cancer treatment, our Radiation Oncology Department is here to walk with you every step of the way — with expertise, empathy, and excellence.
For appointments or more information, please reach out to our Oncology Helpline or visit our department at Holy Spirit Hospital, Andheri (East), Mumbai.

Infrastructure and Technology
At Holy Spirit Hospital, the Radiation Oncology Department is dedicated to providing advanced and individualized radiotherapy for cancer patients, combining technology with a deep commitment to patient care. Radiotherapy uses high-energy X-rays or gamma rays to target and destroy cancer cells, either through external beam radiotherapy or internal therapy (brachytherapy).
State-of-the-Art Equipment & Techniques
Our department is equipped with the TrueBeam STx Linear Accelerator, a world-class system designed for precise and efficient radiation delivery. It is paired with the Eclipse Treatment Planning System, which ensures meticulous planning for every patient.
We offer a broad range of advanced radiotherapy techniques, including:
Rapid Arc (VMAT) – Delivers radiation in a continuous arc, reducing treatment time and enhancing precision.
IGRT (Image-Guided Radiotherapy) – Uses imaging to verify the exact position of the tumor before each treatment.
IMRT (Intensity-Modulated Radiotherapy) – Shapes radiation beams to conform to the tumor, sparing surrounding healthy tissue.
3DCRT (Three-Dimensional Conformal Radiotherapy) – Matches the radiation dose to the 3D shape of the tumor.
SGRT (Surface-Guided Radiotherapy) – Tracks the body’s surface to ensure accurate delivery without the need for additional markers.
SRS (Stereotactic Radiosurgery) – A non-invasive alternative to surgery for brain and spinal tumors.
SBRT (Stereotactic Body Radiotherapy) – High-dose precision therapy for small, well-defined body tumors.
Brachytherapy – Internal radiation using small sources placed inside or near the tumor for targeted treatment.
Specialised Radiotherapy Services for Enhanced Outcomes
4D Respiratory-Gated Radiotherapy (4DRT):
For tumors in the chest or abdomen that move with breathing, this technology times radiation delivery with respiratory cycles to improve accuracy.Short-Course Radiotherapy (SCRT):
A condensed treatment plan used for selected cancers like breast, rectum, prostate, and lungs, enhancing convenience without compromising effectiveness.Single-Dose Precision Therapy (SDRT):
Carefully administered high-dose single-session radiotherapy for certain brain, bone, or liver metastases to reduce treatment burden while maximizing results.Integrated Planning with MRI, CT, etc
Combining imaging modalities ensures more accurate targeting, minimizing side effects and improving treatment precision.
Supportive and Holistic Care
Palliative Radiotherapy and Emergency Care:
For advanced-stage cancers, we provide prompt radiation relief from pain and symptoms. We also manage emergencies like spinal cord compression, bleeding tumors, and skeletal instability.Comprehensive Onco-Rehabilitation:
Our integrated rehab program supports recovery and quality of life through physiotherapy, yoga, nutrition counseling, psychological support, and speech therapy.Cancer Support Group – “WeCan”:
A peer-based community where patients share experiences, attend regular meetings, and gain insights from expert-led sessions. It offers encouragement, education, and emotional support.
Our Dedicated Radiotherapy Team
Radiation Oncologists – Lead clinical care, design treatment strategies, and monitor progress closely.
Medical Physicists – Handle treatment planning and ensure radiation safety protocols.
Radiation Therapists – Administer treatment with accuracy and compassion.
Oncology Nurses – Provide continuous patient support and monitor health throughout the treatment journey.
Support Staff – Including front desk, secretarial, and housekeeping personnel who help ensure a seamless and stress-free experience for patients and caregivers.
Your Care, Our Commitment
At Holy Spirit Hospital, we believe in treating more than just cancer – we care for the whole person. Our radiation oncology team is committed to delivering safe, precise, and compassionate care that helps patients regain strength, hope, and dignity through their treatment journey.
For more information or appointments, please contact our Oncology Helpdesk.
Professionals

Dr. Ajay S. Kolse
Radiation treatment for Head and Neck, Breast, Gynaecological malignancies and other cancer
MD Radiation Oncology
Available Timings:
- Mon - Fri: 10:00 am - 04:00 pm
- Sat: 10:00 am - 02:00 pm