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Course Material 


This exercise consists of participants reading a short clinical vignette about a post-operative cervical cancer case. Then they will prepare by contouring the required volumes on the specified CT simulation slices.

During the webinar, Dr. Sushil Beriwal will go over the specified volumes and slices, talk about why he contoured the way he did with reference to the latest NRG/RTOG consensus guidelines, and then compare the reference contours with the participants and offer suggestions.


This program is designed to meet the interest of radiation oncologists and radiation oncology residents.


Each of the workshop sessions will last for two hours.  The session will cover the following areas:

  • (Pre-course) Access to platform and hands-on contouring by participants

  • Short talks each by sub-site surgeon, radiation oncologist and radiologist

  • Presentation of the case and delineation guidelines used

  • Breakout session to review participants’ contours in comparison to the reference contours

  • Summary of key points by expert panel 

  • Discussion between participants and experts

Learning Objectives

  • Describe clinical and anatomical rationale for the selection of clinical target volume and organs at risk delineation

  • To appreciate the changes in the updated NRG/RTOG consensus guidelines and to apply them to clinical practice.

  • To understand how bony levels only serve as surrogates for anatomical landmarks and should no longer be utilized in the era of 3D imaging and simulation.

  • To be familiar with surgical approaches, implants/reconstructive approaches.

  • Learn about the post-operative imaging modalities used to identify residual tumour and/or post-operative changes


Dr Sushil Beriwal

Professor of Radiation Oncology and Academic Chief
Allegheny General Hospital Pittsburg PA

Dr Sushil Beriwal is Professor & Academic Chief at Allegheny General Hospital, Pittsburgh. He specializes in gynecologic, breast, and prostate cancers, with an emphasis on high dose rate brachytherapy for cervix, uterine, vagina, and breast cancers, along with prostate seed implantation, image-guided radiation therapy, and intensity modulated radiation therapy. Dr Beriwal was one of the authors for the latest NRG/RTOG consensus guidelines that will be used as the reference document for this contouring session.


Dr Timothy Lim

Gynecologic Oncologist
Timothy Lim Clinic for Women & Cancer Surgery

Dr Timothy Lim Yong Kuei is a Specialist in Obstetrics and Gynaecology with a special interest in the management of gynaecological cancers. He is currently in private practice at Mount Alvernia Hospital in Singapore. His key interests are in laparoscopic surgery, complex pelvic surgery and the prevention and treatment of gynaecological cancers.


Dr Colin Tan 

Consultant Nuclear Medicine Physician and Radiologist
ParkwayHealth Radiology
Mount Elizabeth Novena Hospital

Dr. Colin Tan is a dual-accredited consultant in Radiology and Nuclear
Medicine, practicing at Mount Elizabeth Novena Hospital. His area of
interest oncological imaging, with emphasis on abdomino-pelvic neoplasm
imaging with CT and MRI, and PET, utilising both conventional and novel
tracers. In addition to PET/CT,  ParkwayHealth Radiology operates the sole
clinical PET/MRI service in Singapore, which is seeing increasing utility in
clinical practice.



Dr David Tan
Senior Radiation Oncologist
Asian Alliance Radiation & Oncology

Associate Professor Dr Pittaya Dankulchai
Head of division of Radiation Oncology
Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University



Dr Pittaya Dankulchai
Associate Professor Radiation Oncologist
Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand

Dr Leong Yiat Horng
Consultant Radiation Oncologist
National University Cancer Institute Singapore

Dr Michelle Tseng
Consultant Radiation Oncologist
National University Cancer Institute Singapore

Dr Yap Swee Peng
Senior Consultant Radiation Oncologist
National Cancer Centre Singapore

Dr Ivy Ng
Associate Consultant Radiation Oncologist
National University Cancer Institute Singapore

Dr Choo Bok Ai
Senior Consultant Radiation Oncologist
Icon Cancer Centre Singapore

Dr David Tan
Senior Radiation Oncologist
Asian Alliance Radiation & Oncology


  1. NRG Oncology/RTOG Consensus Guidelines for Delineation of Clinical Target Volume for Intensity Modulated Pelvic Radiation Therapy in Postoperative Treatment of Endometrial and Cervical Cancer: An Update. Small, et al; Int J Radiat Oncol Biol Phys. 2021 Feb 1;109(2):413-424.

  2. NRG Powerpoint Summary of Changes

  3. Gynecologic Cancer Atlases, Templates, & Tools

About us

RadoncAsia is a medical conference dedicated to advancing Radiation Oncology excellence in Asia. Working with Asian institutions, Read More …

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The School of Clinical Oncology


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