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Dr Sean Yan Xue Xian

Dr Sean Yan Xue Xian


Senior Consultant

Specialty: Nuclear Medicine and Molecular Imaging

Conditions Treated by this Doctor:
Cancer, Thyroid Disorders.

Clinical Appointments

  • Senior Consultant Nuclear Medicine and Molecular Imaging Singapore General HospitalSingapore General Hospital

Academic Appointments

  • Adjunct Assistant Professor, Duke-NUS Medical School


I am currently a senior consultant physician with Singapore General Hospital and a visiting consultant with National Cancer Center Singapore.

I obtained my medical degree from China, completed medical training in USA and migrated to Singapore to practice 5 years ago. 

I have strong interest in molecular imaging and targeted radionuclide therapy.  

Other than patient care, I am also devoted to medical education and research. I am a member of joint committee on specialist training. I have published more than 30 peer reviewed articles in my specialty.

I look forward to providing best care to my patients in today’s challenging, fast-paced world.


  • Clinical fellowship in PET/CT, Emory University Hospital, Atlanta, USA
  • Nuclear medicine residency, Vanderbilt University Hospital, Nashville, USA
  • Internal medicine residency, Mount Sinai Hospital, New York, USA
  • Oncology postdoctoral fellowship, Vanderbilt Ingram Cancer Center, Nashville, USA
  • Master of Medicine in radiological medicine, Chongqing Medical University, China
  • Bachelor of Medicine, Chongqing Medical University, China

Professional Appointments and Committee Memberships

  • Member, JCST examination committee, MOH, Singapore
  • Core faculty, Singhealth diagnostic radiology residency program, Singapore


Research Interests


  • Suriyanto, Ng EY, Say XJ, Ng CE, Yan XS, Kumar SD. Quantitative means for differentiating renal obstruction by analysing renography by compartmental modelling of renal fluid flow rate. Nucl Med Commun. 2016 Sept;37(9):904-10. doi: 10.1097/MNM.0000000000000534.
  • Aaron Tong Kian Ti, Zoe Zhang Xiaozhu, Zaheer Sumbul, Sean Yan Xuexian. Dual-phase 18F-fluorocholine PET/CT to detect locoregional recurrence of prostate cancer: Comparison between each time point imaging and a summation scan. Clinical Imaging Volume 40, Issue 3, May–June 2016, Pages 486–491, doi:10.1016/j.clinimag.2015.12.010

Research Trials