Arjun Sahgal

About

Arjun Sahgal is a prominent radiation oncologist whose career has been defined by pioneering contributions to stereotactic body radiotherapy (SBRT) and radiosurgery, with a particular focus on spinal metastases and image-guided treatment delivery. Working across leading institutions including the University of California San Francisco and the University of Toronto's Sunnybrook Health Sciences Odette Cancer Centre, Sahgal has been instrumental in developing and refining techniques that allow clinicians to deliver precise, high-dose radiation to spinal tumors while minimizing damage to surrounding healthy tissue. His most-cited work (152 citations) rigorously analyzed intrafraction motion during spine SBRT using cone-beam CT and robotic couch systems — research that directly informed safety protocols worldwide. His early investigations into CyberKnife radiosurgery for benign spinal tumors helped establish the clinical viability of frameless robotic approaches. Sahgal has also advanced understanding of head immobilization devices for cranial radiosurgery, evaluating the critical tradeoffs between frame-based and frameless systems. His broader contributions to emerging SBRT technologies and apparatus-dependent dosimetric differences reflect a consistent commitment to optimizing treatment precision. With hundreds of citations across his body of work, Sahgal stands as a foundational figure in modern image-guided radiotherapy.

Research Focus

Key Achievements

Top Papers

1. 1
   Spine Stereotactic Body Radiotherapy Utilizing Cone-Beam CT Image-Guidance With a Robotic Couch: Intrafraction Motion Analysis Accounting for all Six Degrees of Freedom

   152 citations · 2012
2. 2
   Image-Guided Robotic Stereotactic Body Radiotherapy for Benign Spinal Tumors: The University of California San Francisco Preliminary Experience

   93 citations · 2007
3. 3
   Technique for stereotactic body radiotherapy for spinal metastases

   73 citations · 2010
4. 4
   To frame or not to frame? Cone‐beam CT‐based analysis of head immobilization devices specific to linac‐based stereotactic radiosurgery and radiotherapy

   62 citations · 2018
5. 5
   Effects of residual target motion for image‐tracked spine radiosurgery

   55 citations · 2007
6. 6
   Emerging technologies in stereotactic body radiotherapy

   52 citations · 2017
7. 7
   Stereotactic Body Radiotherapy for the Treatment of Spinal Metastases: An Overview of the University of Toronto, Sunnybrook Health Sciences Odette Cancer Centre, Technique

   38 citations · 2013
8. 8
   Apparatus-Dependent Dosimetric Differences in Spine Stereotactic Body Radiotherapy

   25 citations · 2010
9. 9
   Cone Beam CT (CBCT) Evaluation of Inter- and Intra-Fraction Motion for Patients Undergoing Brain Radiotherapy Immobilized using a Commercial Thermoplastic Mask on a Robotic Couch

   25 citations · 2012
10. 10
    Split-Volume Treatment Planning of Multiple Consecutive Vertebral Body Metastases for Cyberknife Image-Guided Robotic Radiosurgery

    15 citations · 2008

Key Collaborators

Contact & Links