Ivan Tham

Associate Professor
Department Head and Senior Consultant (Department of Radiation Oncology, National University Cancer Institute, Singapore)
Clinical Director (Clinical Imaging Research Center)


About Me

I am currently head of department and senior consultant at the Department of Radiation Oncology, National University Cancer Institute, Singapore.

I received my undergraduate training in the National University of Singapore, and my post-graduate training in Singapore and the UK.

I am a Fellow of the UK Royal College of Radiologists (Clinical Oncology) and the Royal Australian & New Zealand College of Radiologists (Radiation Oncology).

I am the Clinical director of the A*Star/NUS Clinical Imaging Research Centre, and currently serves as Vice-President of the Federation of Asian Organizations for Radiation Oncology.

Research Interest

My clinical and research interests are in lung cancer and head & neck cancer.

Recent/Representative Publications

Roy S, Cheong DLH, Yan J, Totman JJ, Ng T, Khor LK, Goh J, Tham IWK. Serial FDG-PET/MR Imaging for Head and Neck Cancer Radiation Therapy: A Pilot Study. IEEE Trans Radiat Plasma Med Sci, Mar 2017;1(2):158 – 163.

Schaefferkoetter J, Yan J, Sjöholm T, Townsend D, Conti M, Tam J, Soo R, Tham I. Quantitative Accuracy and Lesion Detectability of Low-Dose FDG-PET for Lung Cancer Screening. J Nucl Med 2017 Mar;58(3):399-405.

Cheo T, Loh Y, Chen D, Lee KM, Tham I. Measuring radiotherapy setup errors at multiple neck levels in nasopharyngeal cancer (NPC): A case for differential PTV expansion. Radiother Oncol. 2015 Dec;117(3):419-2.

Yang YX, Teo SK, Van Reeth E, Tan CH, Tham IW, Poh CL. A hybrid approach for fusing 4D-MRI temporal information with 3D-CT for the study of lung and lung tumor motion. Med Phys. 2015 Aug;42(8):4484-96.

Yan J, Lim JC, Loi HY, Khor LK, Sinha AK, Quek ST, Tham IW, Townsend DW. Impact of image reconstruction settings on Texture Features in 18F-FDG PET. J Nucl Med. 2015 Nov;56(11):1667-73.

Isotropic Reconstruction of a 4-D MRI Thoracic Sequence Using Super-resolution. Van Reeth EV, Tham IWK, Tan CH, Poh CL. Magn Reson Med. 2015 Feb;73(2):784-93.

Yang Y, Van Reeth E, Poh CL, Tan CH, Tham IW. A spatiotemporal-based scheme for efficient registration-based segmentation of thoracic 4-D MRI. IEEE J Biomed Health Inform. 2014 May;18(3):969-77.

Vellayappan BA, Soon YY, Earnest A, Qing S, Koh WY, Tham IW, Lu JJ, Lee KM. The accuracy of 18F-flurodeoxyglucose-positron emission tomography/ computed tomography (FDG-PET/CT) in the staging of newly diagnosed nasopharyngeal carcinoma: a systematic review and meta- analysis. Radiol Oncol. 2014 Nov 5;48(4):331-8..

Reeth EV, Tham IWK, Tan CH, Poh CL. Super-Resolution in Magnetic Resonance Imaging: a Review. Concepts in Magnetic Resonance - Part A 2012 Nov, 40A(6):306–325.

Acher PL, Rhode KS, Morris SL, Gaya A, Miquel ME, Popert R, Tham IW, Nichol J, McLeish K, Deehan C, Dasgupta P, Beaney RP, Keevil SF. A comparison of XMR and CT-based dosimetry for the evaluation of permanent prostate brachytherapy implants. Int J Radiat Oncol Biol Phys. 2008;71:1518-25.