Dr. Hirak Vyas is an experienced radiation oncologist who is well-acquainted with with clinical as well as technical nuances of treatment of conventional and hypofractionated radiationtherapy. He had an opportunity to work on machines like Elekta VERSA HD Linear Accelerator, Radixact Tomotherapy and Cyberknife.

• Fellowship (Image Guided Radiosurgery), DY Patil University, Mumbai from institutes- HCG Cancer Center, Borivali & HCG-ICS Khubchandani Cancer Center Colaba, 2019 – 2020
• MD (Radiation Oncology), Geetanjali University, Udaipur Geetanjali Medical College & Hospital, Udaipur, 2016 – 2019
• Rotatory Internship Gujarat University, Ahmedabad Smt. NHL Municipal Medical College, Ahmedabad, 2014 – 2015
• MBBS, Gujarat University, Ahmedabad, Smt. NHL Municipal Medical College, Ahmedabad, 2009 – 2014

• Academic Awards 3rd Prize –
  RAJAROICON 2018, Bikaner. Volumetric and Geometric Changes in Gross Tumor Volume of Head and Neck Cancer during Volumetric Modulated Arc Therapy. Hirak Vyas, Ramesh Purohit, Kiran Chigurupalli, Menal Bhandari, A R Gupta, Deepanjali Patel, Shalu Peter
• Travel Award –
  ISNOCON 2018, AIIMS, New Delhi. Stereotactic radiosurgery for trigeminal neuralgia secondary to schwannoma – A case report. Hirak Vyas, Ramesh Purohit, Shweta Mutha, Shankar V, AR Gupta, Kiran Chigurupalli, Deepanjali Patel, Vinoth Kumar

• Association of Radiation Oncologist of India (AROI)
• American Society of Radiation Oncologist (ASTRO)
• European Society for Radiotherapy and Oncology (ESTRO)

• Radiosurgery
• Image guided treatment with VMAT or IMRT
• Motion Management
• Brachytherapy
• Worked on multiple commercially available Planning systems – MONACO (Elekta Versa HD) Eclipse (Varian) Precision (Accuray – Tomotherapy and Cyberknife) Oncentra (Microselctron Brachytherapy)

• Impact of Adaptive Image Guided Radiotherapy on Parotid Sparing in Head and Neck Cancer. IJSR. Vol 8 Iss 4, April 2019. Hirak Vyas, Ramesh Purohit, Kiran Chigurupalli, Deepanjali Patel, Menal Bhandari, A R Gupta
• Acute Toxicity Patterns in Adaptive High Precision Radiotherapy for Head and Neck Cancer – a Randomised Controlled Trial. Oral Presentation – ASTRO 2019. Hirak Vyas, Vangipuram Shankar, Ramesh Purohit, Patel Deepanjali, Kiran Chigurupalli
• Clinical Impact of Adaptive Radiotherapy in Head and neck Cancer – A Randomized controlled trial –Oral presentation- ESTRO Annual Congress 2020.Deepanjali Patel, Hirak Vyas, Vangipuram Shankar, Ramesh Purohit, A R Gupta
• PET-CT based metabolic regression velocity following SBRT for spinal oligometstases. Poster presentation – ESTRO Annual Congress 2020.Hirak Vyas, Vangipuram Shankar, Bhavya Patneedi, Deepanjali Patel

• Radiosurgical ablation of intramedullary spinal cord AVM. ASTRO 2020. Patneedi Bhavya, Vangipuram Sai Shreya, Vangipuram Shankar, Keki Turel, Chandrasekhar Deopujari, Hirak Vyas, Chiramana Haritha
• Great vessel motion mapping from 4D MRI to 3D CT ‐ Implications for Oligo metastatic spinal SBRT vessel constraint. ESTRO Annual Congress 2020. B. Patneedi, Vangipuram Shankar, Hirak Vyas, P Bhasker, Ashish Bhange, K Samy, Trinanjan Basu, Upasna Saxena
• Dosimetric impact of intrafraction motion in spine SABR. YROC 2017. Hirak Vyas, Shankar V, Ramesh Purohit, Kiran Chigurupalli, Shweta Mutha
• Frameless stereotactic radiosurgery for multiple benign brain tumors: A rare case report. ISNOCON 2018. Deepanjali Patel, Ramesh Purohit, Shankar V, AR Gupta, Kiran Chigurupalli, Hirak Vyas, Vinoth Kumar
• Dosimetric Comparison of Volumetric Arc Therapy and 3D Conformal Radiotherapy in Carcinoma Middle Esophagus. RAJAROICON 2018. Deepanjali Patel, Ramesh Purohit, Kiran Chigurupalli, Menal Bhandari, A R Gupta, Hirak Vyas, Shalu Peter
• Intra- and Inter-fraction Positioning accuracy of mask versus mask & mouthbyte Immobilisation systems for Frameless linac-based Intracranial Radiosurgery. ASTRO 2018. Sunil Maurya, Vangipuram Shankar, Chiramana Haritha, Valuvil Bhaskar, A Karuppusamy, Ashish Bhange, Dippanita Sen, BS Ajai Kumar, Hirak Vyas, Shweta Mutha, Ramesh Purohit, Kiran Chigurupalli, Patel Deepanjali
• Initial response Lag time in Flat versus Non Flat beam frameless image guided Trigeminal Radiosurgery. ASTRO 2018. Vangipuram Shankar, Chiramana Haritha, Valuvil Bhaskar, A Karuppusamy, Ashish Bhange, Dippanita Sen, BS Ajai Kumar, Hirak Vyas, Sunil Maurya, Shweta Mutha, Ramesh Purohit, Kiran Chigurupalli, Patel Deepanjali
• Anatomically Corrected DVH metrics accounting for intrafraction motion of esophagus in Dorsal Spine SBRT. ASTRO 2018. A Karuppusamy, Vangipuram Shankar, Chiramana Haritha, Sunil Maurya, Valuvil Bhaskar, Ashish Bhange, Dippanita Sen, BS Ajai Kumar, Hirak Vyas, Shweta Mutha, Ramesh Purohit, Kiran Chigurupalli, Patel Deepanjali
• Dosimetric influence of oscillatory spinal motion on the cord doses for cervicothoracic spine SBRT. ASTRO 2018. Ashish Bhange, Vangipuram Shankar, Chiramana Haritha, Sunil Maurya, Valuvil Bhaskar, A Karuppusamy, Dippanita Sen, BS Ajai Kumar, Hirak Vyas, Shweta Mutha, Ramesh Purohit, Kiran Chigurupalli, Patel Deepanjali