Department of Diagnostic Radiology
How useful is an imaging test in identifying early disease, such as Alzheimer's or liver cancer?
What can functional imaging tell us about disease processes at the molecular level?

Major Research Areas

Molecular imaging, including clinical and pre-clinical Positron Emission Tomography (PET) and Magnetic Resonance Imaging (MRI) in Oncology

Contact Person
Professor P.L. Khong

Advanced MRI and other molecular imaging techniques in neurological diseases:

  1. Alzheimer’s and other neurodegenerative diseases – volumetric MRI, functional MRI, MR perfusion, MR spectroscopy (MRS), Amyloid and Tau PET.
  2. Neuromyelitis Optica and Multiple Sclerosis – Arterial Spin Labelling (ASL), Diffusion Tensor Imaging (DTI), MRS.
  3. Brain tumours – surrogate markers in anticancer drug trials using Dynamic Contrast Enhanced (DCE) MR perfusion and MRS.
  4. Epilepsy – Volumetric MRI, T1 Rho.
  5. Parkinson’s Disease – Susceptibility-weighted Imaging (SWI).

Stroke and cardiovascular imaging:

  1. Stroke imaging – MR/CT perfusion imaging in evaluation of stroke, MRA/CTA in aneurysm screening and intracranial atherosclerosis, DTI in hemorrhagic stroke, stroke imaging database in HKW cluster.
  2. Carotid plaque characterisation – Multimodal MRI.

Head and neck imaging:

Multi-modality imaging – 18F-PET-CT and MRI perfusion/diffusion

Contact Person
Dr H. Mak

Molecular and functional imaging in gynaecological and thoracic oncology

  1. Body diffusion weighted MR imaging (DWI MRI) – application in oncology, quantification of diffusion parameters and technique optimisation on 3T MRI.
  2. Thoracic radiology – metabolic imaging in idiopathic pulmonary fibrosis and thoracic malignancies based on PET/CT.
  3. Gynaecological oncology imaging – functional assessment of metabolic activity (PET/CT) in gynaecological malignancies and the use of advanced MRI techniques (e.g. DWI, IVIM, DCE-MRI) in disease diagnosis, treatment response assessment and prognosis.
  4. Peritoneal imaging – functional assessment using PET/CT, DWI MRI, chemical exchange saturation transfer (CEST) in peritoneal carcinomatosis.

Contact Person
Dr E. Lee

Utilisation of imaging techniques using latest technology in CT, MRI and PET.

  1. Low dose CT using iterative reconstruction.
  2. Imaging of hepatocellular carcinoma: early detection, cancer characteristics, and response assessment.
  3. Using imaging as a surrogate for cancer treatment response therapy using PET/CT and MRI.
  4. Cardiovascular imaging using CT and MRI.

Contact Person
Dr V. Vardhanabhuti

Cardiac Magnetic Resonance (CMR):

  1. Using T1 and T2 mapping for the assessment of myocardial fibrosis and myocardial oedema:
    • This research is currently focused on three types of patients, (1) Childhood cancer survivors who were given anthracycline chemotherapy, (2) Tetralogy of Fallot patients and (3) chronic kidney disease patients. Correlation with other CMR measurements and other investigations is being investigated.
  2. Strain analysis for the assessment of cardiac function and comparing this to echocardiography and other CMR parameters
  3. 4D flow in tetralogy of Fallot patients and normal volunteers to investigate wall shear stress, blood flow volume and blood flow velocity
  4. Fast late gadolinium enhancement sequences and its impact on clinical work-flow

Cardiac Computed Tomography:
Calcium scoring in rheumatoid arthritis patients with long term follow-up and correlation with other biomarkers and treatment effects on the progression of calcium in the coronary arteries.

Thoracic Imaging:
Cross-sectional study of pleuroparenchymal fibroelastosis (PPFE) on computed tomography

Contact Person
Dr M.Y. Ng

Gastrointestinal imaging

  1. Hepatcellular carcinoma -- Enhancement pattern on CT/MRI, tracer uptake in PET/CT and underlying genomic changes
  2. Oesophageal Cancer -- Using functional imaging as a surrogate marker for treatment response
  3. Colorectal Cancer -- Using CT/MRI and PET/CT as surrogate markers for treatment response
  4. Small bowel disease -- Using MRI for imaging small bowel disease

Contact Person
Dr W.H.K. Chiu

  1. Magnetic resonance fingerprinting
  2. Fast magnetic resonance techniques
  3. MR image reconstruction
  4. Stroke imaging and other neurological diseases and disorders using advanced MRI techniques, with special focus on diffusion imaging.
  5. Structural brain connectivity

Contact Person
Dr E.S. Hui

  1. 2-D/3-D fast MR imaging technique development and reconstruction for fMRI and diffusion weighted/tensor imaging applications (single-shot and multi-shot echo-planar imaging).
  2. Fat quantification using MRI (acquisition and reconstruction developments).
  3. Periodically rotated overlapping parallel lines with enhanced reconstruction echo-planar imaging (Propeller-EPI) acquisition and reconstruction developments.
  4. Artifact reduction of fast MR imaging (Nyquist ghost reduction and geometric distortion correction).

Contact Person
Dr C.H.C. Chang

Departmental Postgraduate Admission Advisor
Dr H. Mak
Tel: 2255 3307
Fax: 2855 1652

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