From a broken bone to an internal infection, diagnostic imaging plays a key role in helping doctors identify health conditions and guide treatment. This technology allows healthcare professionals to see inside the body without surgery. There are several types of scans used in medical care, each with its own purpose and benefits.
In this article, we explore the most common types of diagnostic imaging, how they work, and what conditions they are commonly used to detect.
What Is Diagnostic Imaging?
Diagnostic imaging refers to various techniques used to take images of the inside of the body. These scans help doctors detect, diagnose, and monitor medical conditions. The images provide valuable information about bones, organs, tissues, and more.
Common Types of Diagnostic Imaging
X-Rays
X-rays use small amounts of radiation to capture images, mostly of bones and joints. Used for:
- Bone fractures
- Lung infections like pneumonia
- Breast screening – mammogram
- Joint or bone conditions
Examples: Chest X-rays, Bone X-rays
Ultrasound (Sonography)
Ultrasound uses high-frequency sound waves to produce live images. It is a non-invasive scan that does not use radiation. Used for:
- Monitoring pregnancy
- Checking the abdomen or liver
- Detecting kidney stones
- Evaluating soft tissues
Mammography
Mammography is a specific type of imaging used to examine breast tissue and detect abnormalities. Used for:
- Screening for breast cancer
- Investigating breast lumps or changes
It is often part of routine health checks for women aged 40 and above.
DEXA (Bone Density Scan)
DEXA scans measure bone density and are often used to assess bone strength. Used for:
- Diagnosing osteoporosis
- Monitoring bone loss
- Estimating fracture risk
CT (Computed Tomography) Scan
A CT scan combines many X-ray images taken from different angles to produce detailed cross-sectional views. Used for:
- Head injuries
- Detecting tumours or cancers
- Internal bleeding
- Diagnosing chest or abdominal conditions
MRI (Magnetic Resonance Imaging)
MRI uses magnetic fields and radio waves to produce high-resolution images of soft tissues. Used for:
- Brain and spinal cord evaluation
- Muscle or ligament injuries
- Joint problems
- Certain types of tumours
Take note that MRI does not involve radiation.
Depending on your condition, SATA CommHealth’s doctor may refer you for additional or appropriate diagnostic screenings to ensure comprehensive care and accurate diagnosis.
How Do You Know Which Scan You Need?
Doctors select the most suitable type of scan based on your symptoms, medical history, and other factors. Diagnostic imaging should always be done under the guidance of a qualified healthcare professional.
It is not advisable to self-diagnose or choose scans without proper advice.
Are There Any Risks Involved?
Most diagnostic imaging tests are low risk. Some scans, such as X-rays and CT scans, involve small doses of radiation. These are carefully controlled and only used when necessary.
MRI does not use radiation, but may not be suitable for individuals with metal implants or pacemakers. Ultrasound is widely used and generally considered safe.
Always inform medical staff about any health conditions, implants, or pregnancy before your scan.
Preparing for a Diagnostic Scan
Preparation depends on the type of scan. Your healthcare provider will give you specific instructions, but here are some general tips:
- Wear comfortable, loose-fitting clothes
- Remove metal items or jewellery
- Follow any fasting or hydration instructions
- Let the staff know if you are pregnant or have any allergies or implants
Imaging Services Available at SATA CommHealth
Understanding the various types of diagnostic imaging can help you feel more informed when working with your healthcare provider. Each type of scan is suited to specific conditions and helps with early detection, diagnosis, and monitoring.
SATA CommHealth provides access to several diagnostic imaging services such as X-rays, ultrasound, and mammography. These services are carried out by trained professionals using appropriate medical equipment.
SATA CommHealth aims to support the community through accessible health services, and its imaging services are part of this ongoing commitment.
For more details about the available imaging options or to enquire about an appointment, individuals may contact SATA CommHealth directly at 6244 6688.