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State-of-the-art Cancer Screening Technologies

From diagnosis to treatment, patients have to undergo a series of medical imaging and interventional services to allow doctors to carefully tailor the most suitable treatment plan. Conventional screening methods include non-invasive medical imaging, blood tests, endoscopy, etc. Doctors may also recommend patients take genetic tests to determine whether they are suitable for immunotherapy or targeted therapy.


For high-risk individuals who do not show any signs of cancer but have a family history of cancer, the following screening methods can be considered as a means to ruling out or predicting the risk of developing cancer. The centre provides a broad range of cancer screenings and advanced medical imaging services. We aim to ensure that every patient is able to successfully prevent and control this disease and receive prompt treatment from early detection.


The following are common cancer screening methods:

Cancer Screening Method - Medical Imaging

X Ray

X-rays clearly show a detailed outline of the organs in the body.


Immediate changes in the organs can be seen with ultrasound. However, the ability to penetrate the bones, tissues along with the image resolution is limited.

Computed Tomography (CT)

The whole body may be scanned by CT by producing hundreds of cross-sectional images to form two-dimensional and three-dimensional images.

Positron Emission Tomography–Computed Tomography (PET-CT)

PET-CT is able to improve the accuracy of anatomical imaging by using 3D colour images and data from computer scanning.

Magnetic Resonance Imaging (MRI)

With MRI, the morphology of the soft tissues and nerve veins are presented with extremely high image contrast.

Medical Imaging includes Positron Emission Tomography–Computed Tomography (PET-CT)Computed Tomography (CT)Magnetic Resonance Imaging (MRI)3D Mammography/Tomosynthesis, etc. Through diagnostic imaging, doctors can identify and determine the stage and extent of cancer in order to make an accurate diagnosis. Tests are often repeated regularly throughout treatment to effectively monitor the cancer’s response to the treatment.

Positron Emission Tomography–Computed Tomography (PET-CT)

Computed Tomography (CT)

Magnetic Resonance Imaging (MRI)

3D Mammography

Cancer Screening Method - Blood Test

Blood tests are commonly conducted during chemotherapy to monitor how well the cancer patient is responding to the treatment and its side effects. Common blood tests such as complete blood count (CBC) measure the amounts of various types of blood cells in the sample. These. These include red blood cells, white blood cells, platelets etc. Certain blood tests also give doctors an idea of how well your organs are functioning. For example, liver function tests allow your doctors to know the condition of your liver before starting your treatment. If your liver is not working well, certain targeted drug therapies or chemotherapy may also not be good choices in your treatment.

Cancer Screening Method - Genetic Test

In the past, doctors were only able to take a small sample from patients’ tumour and examine it in a lab to see if there was certain gene mutation to act as targets for certain treatments. However, a new form of biopsy has arisen in recent years where gene mutations can be detected by checking the cell-free DNA in patients’ blood. Not only is the process faster and far less expensive, but it also avoids the inconvenience and pain caused to cancer patients by needing to undergo a biopsy, especially for elderly patients who are weaker or less well suited to surgery. However, the sensitivity of a liquid biopsy is still limited; as it is intended to be adjuvant to traditional biopsy.


Samples taken from liquid biopsy or traditional biopsy can then go through Next Generation Sequencing (NGS), where genomes are sequenced at high speed and at low cost. With this new technology, healthcare professionals can efficiently sort out suitable targeted drugs and prescribe relevant medication to enhance treatment outcomes for patients.


Additionally, high-risk individuals with a family history of cancer, such as breast cancer, cervical cancer, or family members with BRCA mutation genes, may consider taking a genetic test as a cancer screening upon doctor’s advice.

Cancer Screening Method - Other Preventive Screenings

Other preventive screenings include Cervical Screening, also known as Pap Smear, Breast and Pelvic Exam, Pelvic Ultrasound, Faecal Occult Blood Tests (FOBT), Regular Hepatitis B (HBV) tests, etc.

Health Check-up Program

  • Standard health check-up program includes Electrocardiogram, Kidney Function Tests, Liver Ultrasound, Liver Function Tests, Complete Blood Count (CBC) (haemoglobin and blood cell count), and Iron Tests to monitor the health condition of major organs.
  • A cancer screening program may also be considered upon doctor’s advice. If taking early stage lung cancer as an example, the survival rate of patients can be as high as 90%. If it is detected in the fourth phase, the survival rate drops below 10%, which highlights the significance of regular physical check-up.

Cervical Screening (Pap Smear)

  • Women aged 25 to 64 who have been sexually active
  • If the cytopathology results are normal for two consecutive years, you can then switch to doing the check-up once every three years.
  • Women aged 65 years or above
  • Screening may be discontinued if the results of three consecutive tests in the past 10 years are normal; if you have never taken a Cervical Screening before, you should be examined.
  • Women aged 21 to 24 who are sexually active
  • If you have risk factors for cervical cancer, such as having had multiple sexual partners, smoking, etc., you should be assessed by medical professionals to determine whether you need to be screened.

Colorectal Cancer Screening

  • Persons aged 50 to 75
  • You should consider taking the Faecal Occult Blood Test (FOBT) every 1 or 2 years. You should also consider receiving Sigmoidoscopy every five years or undergo a Colonoscopy every 10 years.
  • For people with a family history of Colorectal Cancer,
    Colonoscopy can be a screening method. It is recommended that you should consult your doctor for professional advice.

Breast Cancer Screening

    • Women aged 20 to 40
    • You should consult your doctor every other year and be examined accordingly.


  • A doctor should be consulted every year. A 3D mammogram should be received upon a doctor’s opinion.


Prostate Cancer Screening

  • Men with immediate family who have been diagnosed with prostate cancer before the age of 65 are advised to take a Prostate-Specific Antigen (PSA) test every two years. This should start at the age of 45 until 70.

Liver Cancer Screening

  • High-risk persons such as individuals with Hepatitis B or C virus or patients with cirrhosis should consult doctors about the need for Alpha-Fetoprotein (AFP) test and ultrasound check-up every 6 to 12 months.

A cancer screening program may also be considered upon doctor’s advice. Take early lung cancer as an example, the survival rate of patients can be as high as 90%. If it is detected in the fourth phase, the survival rate drops below 10%, which highlights the significance of regular physical check-up.

Cancer Prevention and self-examination

A healthy lifestyle and diet, along with an appropriate amount of exercise can greatly reduce the risk of cancer. Some early-stage cancers and precancerous lesions can be screened and treated as early as possible to erase the underlying concerns. Taking breast cancer, one of the deadliest cancers among women as an example, women can perform a self-examination to best prevent it. For instance, women can feel for the presence of breast lump, or whether the shape or size has changed, the appearance of pits in the skin or venous dilatation or other such abnormalities. Seek medical advice early if you are in any doubt.

State-of-the-art Medical Screening Services

This centre provides multiple medical screening services. Feel free to fill in the following “Contact Us” form. We will contact you via email, telephone or WeChat and send you the confirmation, along with the important information prior to your medical screening.

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  1. 衞生署衞生防護中心監測及流行病學處:癌症篩查知多少 https://www.cervicalscreening.gov.hk/tc_chi/what/files/newsletter_p10.pdf