Dr. Kirthi Koushik A S

Dr Kirthi Koushik A S is an experienced Radiation Oncologist in Bangalore with 18 years of clinical experience in radiation oncology, head and neck oncology, and advanced high-precision radiotherapy techniques.

Dr Kirthi  Koushik currently practises as a Consultant at Group of HCG Cancer Centre, Bangalore.

Dr Koushik has extensive clinical expertise in brachytherapy, CyberKnife, X-knife radiotherapy, biological imaging, and gynaecological oncology. He has over 60 publications predominantly in radiation oncology and breast oncology, and is known for his precise radiotherapy planning, evidence-based oncological approach, and compassionate patient-centred care.

Areas of Expertise

Dr Kirthi Koushik A S specialises in comprehensive radiation oncology, with strong expertise across head and neck oncology, gynaecological oncology, high-precision radiotherapy, brachytherapy, and biological imaging-integrated cancer treatment.

Head and Neck Oncology and Radiotherapy

He provides expert radiation oncology management for head and neck malignancies, including:

• Curative and palliative radiotherapy for head and neck cancers
• High-precision radiotherapy using CyberKnife and X-knife platforms
• Molecular marker-guided prognostic and treatment planning
• Adjuvant radiotherapy for buccal mucosa and oral cavity cancers
• Nasopharyngeal cancer radiotherapy management

Gynaecological Oncology and Brachytherapy

He offers specialised radiation treatment for gynaecological and brachytherapy-based cancer management, including:

• Brachytherapy for cervical, uterine, and gynaecological cancers
• Low dose rate intracavitary brachytherapy for cervical cancer
• Concurrent chemoradiation for carcinoma cervix
• Advanced brachytherapy for multiple cancer types

High-Precision Radiotherapy and Toxicity Management

He also provides specialised high-precision radiotherapy and long-term quality of life management, including:

• Biological imaging integration for improved radiotherapy accuracy
• IMRT and 3DCRT planning and delivery
• Toxicity management and long-term side effect monitoring
• Brain oncology radiotherapy management

Publications

• A Prospective Dosimetric and Clinical Comparison of Acute Haematological Toxicities in 3DCRT and IMRT with Concurrent Chemotherapy in Carcinoma Cervix, JCRT, 2015
• Angular Variation of Applicators in LDR-ICBT, Journal of Analytical Oncology, 2017
• Brachytherapy in Head and Neck Cancer: A Forgotten Art or a Skill to be Remembered, Journal of Analytical Oncology, 2017
• Nasopharyngeal Synovial Sarcoma: An Oncological Surprise, International Journal of Cancer Therapy and Oncology, 2014
• Principles of Radiation Oncology: A Beams Eye View for a Surgeon, Indian Journal of Surgical Oncology, 2013
• Molecular Marker as a Prognostic Indicator in Head and Neck Cancer Patients, Indian Journal of Surgical Oncology, 2019
• Adjuvant Radiotherapy in Carcinoma Buccal Mucosa: More Conformal the Best, Journal of Cancer Research and Therapeutics, 2019
• Positional Variation of Applicators During Low Dose Rate Intracavitary Brachytherapy for Cervical Cancer: A Prospective Study, Journal of Contemporary Brachytherapy, 2010

Credentials and Qualifications

• MBBS
• MD Radiation Oncology
• Fellowship in Head and Neck Oncology, University of Michigan, USA
• Fellowship in Brain Oncology, Tata Memorial Hospital, Mumbai
• MNAMS, National Academy of Medical Sciences
• AROI Fellowship, Association of Radiation Oncologists of India

Memberships

• Association of Radiation Oncologists of India

Professional Experience

Current Hospital Affiliations

Dr Kirthi Koushik A S currently consults at:

• HCG Cancer Centre, Double Road, Bangalore – Consultant
• HCG Cancer Centre, K R Road, Bangalore – Consultant
• HCG Cancer Hospital, Hebbal, Bangalore – Consultant

Previous Associations

• MS Ramaiah Medical College – Professor and Head of Department

Book an Appointment with Dr Kirthi Koushik A S, Bangalore

Connect via HexaHealth for seamless scheduling and priority consultation with Dr Kirthi Koushik A S for expert care in head and neck oncology radiotherapy, brachytherapy, CyberKnife and high-precision radiotherapy, gynaecological oncology, biological imaging, and comprehensive radiation oncology services.