What Is a CT-Guided Procedure and How Is Imaging Used?
CT-guided procedures use detailed CT images to help a specialist plan and guide a procedure to a specific area of the body. Understanding how CT guidance works can help patients know what to expect before, during and after a procedure.
A CT-guided procedure is a medical procedure performed with the help of CT imaging. CT images allow the treating specialist to identify and target a specific area of the body and help guide the procedure using images taken during the process. The exact procedure, preparation and aftercare depend on the reason for the procedure and your individual clinical circumstances.
How Does a CT-Guided Procedure Work?
CT-guided procedures combine medical expertise with cross-sectional CT imaging. The CT scanner produces detailed images that can help the specialist identify the relevant anatomy and plan where the procedure needs to be performed.
1. Review and Planning
The referral, relevant medical information and available imaging are reviewed to help determine whether CT guidance is appropriate for the planned procedure.
2. Patient Positioning
You are positioned on the CT table according to the area being examined and the procedure being performed.
3. Initial CT Images
CT images can be obtained to identify the target area and help the specialist plan the appropriate approach.
4. Image-Guided Procedure
CT images are used to help guide the procedure towards the intended area while the specialist follows the planned approach.
5. Image Checks
Additional CT images may be taken during the procedure to check positioning and help confirm the intended area is being approached.
6. Completion and Follow-Up
After the procedure, the treating team provides instructions about observation, recovery and any follow-up that may be required.
What Is a CT-Guided Procedure?
A CT-guided procedure is a procedure that uses computed tomography (CT) imaging to help a specialist locate and access a particular area of the body. CT creates cross-sectional images using X-rays, allowing the anatomy to be viewed in multiple planes.
Depending on the clinical situation, CT guidance may be used when a specialist needs to target a particular area for a procedure or obtain access to a specific location. The type of procedure performed depends on the clinical question, the area being treated or sampled and the patient's individual circumstances.
CT guidance does not replace the expertise of the treating specialist. Instead, the images provide visual information that can assist with planning and guiding the procedure.
If you have been referred for a CT-guided procedure, ask your referring doctor or imaging provider what the procedure is intended to assess or treat, how you should prepare and whether there are any medicines or health conditions the team needs to know about.
What Happens Before a CT-Guided Procedure?
Preparation for a CT-guided procedure depends on the specific procedure being performed and your individual health circumstances.
1. Your Referral Is Reviewed
The referral provides information about why the procedure has been requested and the area that needs to be assessed or targeted.
Relevant medical history, previous imaging and other clinical information may also be considered when planning the procedure.
2. The Procedure Is Planned
The treating specialist and imaging team determine the appropriate approach based on the available clinical information and imaging.
CT images can help identify the relevant anatomy and assist with planning the position and pathway used during the procedure.
3. You Receive Preparation Instructions
Depending on the procedure, you may receive instructions about eating and drinking, medications, clothing or other preparation requirements.
If sedation, medication or contrast material is planned, additional instructions may apply. Follow the specific instructions provided by your healthcare professional and imaging team.
What Should You Bring to a CT-Guided Procedure?
Having the relevant information available can help the imaging team prepare for your appointment.
Your Referral
Bring your referral or ensure the required referral information has been provided to the imaging provider.
Medication Information
Bring an up-to-date list of your medicines and tell the healthcare team about medicines that may be relevant to the procedure.
Previous Imaging
Previous scans or imaging reports may provide useful information when planning a procedure, particularly when comparison with earlier imaging is relevant.
Relevant Health Information
Tell the healthcare team about allergies, relevant medical conditions, previous reactions to contrast material or other information they have asked you to provide.
If you are attending CareWell Diagnostix, you can review the clinic's CT Scan information for additional information about CT imaging.
What Happens When You Arrive?
When you arrive, the reception and imaging team will generally confirm your appointment, referral and relevant details.
The team may also ask questions about your medical history, medicines, allergies and other information that could affect the procedure or preparation.
Before the procedure begins, you should have an opportunity to clarify any practical questions about preparation or the appointment process.
If there have been changes to your medications, health, allergies or other circumstances since your referral was issued, let the healthcare team know before the procedure.
What Happens During a CT-Guided Procedure?
The exact process depends on the procedure being performed. CT imaging is used at relevant stages to help the specialist identify the intended area and guide the procedure.
| Stage | How CT Imaging May Be Used |
|---|---|
| Positioning | CT images can help the team confirm your position and identify the area relevant to the procedure. |
| Planning | Cross-sectional images can help the specialist plan an appropriate pathway towards the intended area. |
| Guidance | Further images may be obtained during the procedure to help guide the specialist towards the intended location. |
| Image Assessment | Additional CT images may be used to assess the position of instruments or the area being targeted as the procedure progresses. |
The number of CT images, positioning requirements and procedure steps vary according to the type of procedure and your individual circumstances.
Why Is CT Used for Image Guidance?
CT provides cross-sectional images that can show the location and relationship of different structures within the body. This can provide useful information when a procedure needs to be directed towards a particular anatomical area.
CT imaging may be particularly useful when the specialist needs information about the position of a target area in relation to surrounding structures.
Because CT uses X-rays, the imaging team considers the clinical need for the examination and uses the appropriate imaging approach for the procedure.
You can learn more about CareWell's CT Scan service before your appointment.
How Is CT Guidance Different From Ultrasound Guidance?
Both CT and ultrasound can be used to guide selected procedures, but they use different imaging technologies.
CT uses X-rays to create cross-sectional images, while ultrasound uses sound waves to produce images in real time. The choice of guidance method depends on the procedure, the area being targeted and the clinical circumstances.
Ultrasound guidance may be useful for procedures where real-time ultrasound visualisation is appropriate. CT guidance may be selected when cross-sectional CT information is considered suitable for the planned procedure.
CareWell provides selected image-guided services. Visit the CareWell Ultrasound-Guided Procedures service page for more information.
What Does CT Imaging Show During a Guided Procedure?
CT produces detailed cross-sectional images that can help show the anatomy surrounding the area of interest. These images can assist the specialist with planning and positioning.
Depending on the procedure, CT images may be obtained before and during the procedure to help the team assess the location of the intended target and the position of instruments.
The exact imaging approach depends on the procedure being performed. Your specialist and imaging team can explain why CT guidance has been recommended in your particular situation.
If you have been referred for CT imaging, you can review CareWell's CT Scan information for further details.
What Types of Procedures May Use CT Guidance?
CT guidance may be used for selected procedures where detailed cross-sectional imaging can assist the specialist in locating or accessing a particular area.
Depending on the clinical circumstances, image guidance may be used for procedures such as targeted sampling or injections. The appropriate technique depends on the reason for the procedure and the area being treated or assessed.
Not every procedure requires CT guidance. Your treating healthcare professional will consider the clinical question, available imaging and other factors when determining the most appropriate approach.
CareWell Diagnostix provides selected guided procedures. You can find more information about CT imaging at CareWell Diagnostix .
Is a CT-Guided Procedure the Same as a CT Scan?
No. A standard CT scan is an imaging examination used to create images of the body for diagnostic assessment. A CT-guided procedure uses CT imaging as part of a procedure being performed by a healthcare professional.
During a CT-guided procedure, the CT scanner may be used at specific stages to help identify the relevant anatomy and guide the procedure.
The appointment may therefore involve more steps than a routine CT scan, depending on the procedure being performed.
Learn more about CT imaging at CareWell Diagnostix .
What Happens After a CT-Guided Procedure?
After the procedure, the healthcare team may monitor you for a period of time depending on the type of procedure and whether any medication or sedation was used.
You may receive instructions about activity, wound care, medicines, eating and drinking or other aspects of recovery. These instructions vary according to the procedure.
If a sample has been obtained, it may be sent for laboratory or pathology assessment as appropriate. Your referring or treating healthcare professional can explain how and when results will be discussed.
Follow the post-procedure instructions provided by your healthcare team. If you experience symptoms that concern you after a procedure, contact the healthcare service that provided your aftercare or seek appropriate medical advice.
How Long Does a CT-Guided Procedure Take?
There is no single appointment length for all CT-guided procedures.
The total time can include registration, preparation, positioning, initial imaging, the procedure itself and any observation or recovery required afterwards.
A straightforward procedure may take less time than a more involved procedure, and the preparation requirements can also affect the overall appointment duration.
If you need to plan your day around your appointment, ask the imaging provider how long you should allow for your specific procedure.
What Can Affect a CT-Guided Procedure?
Several factors may influence how a CT-guided procedure is planned and performed.
Type of Procedure
The purpose and complexity of the procedure influence the imaging and guidance required.
Area Being Targeted
The location of the target area and surrounding anatomy can affect positioning and procedural planning.
Previous Imaging
Existing CT scans or other relevant imaging may provide information that helps with planning when available and clinically relevant.
Individual Circumstances
Your medical history, medicines, allergies and other health circumstances may affect preparation or the procedure itself.
Questions to Ask Before a CT-Guided Procedure
If you have been referred for a CT-guided procedure, consider asking:
- What is the purpose of the procedure?
- Why has CT guidance been recommended?
- Do I need any special preparation before the appointment?
- Should I change or temporarily stop any medicines?
- How long should I allow for the appointment?
- Will I need someone to accompany me or drive me home afterwards?
- What should I expect during recovery?
- When and how will my results be communicated?
If you are unsure about preparation or medication instructions, contact the healthcare team before attending rather than making changes on your own.
CT Imaging and Guided Procedures at CareWell Diagnostix
CareWell Diagnostix provides diagnostic imaging services for patients in Tarneit and Melbourne's West.
Depending on your referral and clinical needs, available services include:
CT Scan
Cross-sectional CT imaging for a range of clinical indications and diagnostic assessments.
Explore CT ScanUltrasound
Imaging using sound waves to produce real-time images of selected body structures.
Explore UltrasoundLiver Elastography
Non-invasive assessment of liver stiffness using specialised ultrasound technology.
Explore Liver ElastographyUltrasound-Guided Procedures
Selected procedures can be performed with real-time ultrasound guidance when clinically appropriate.
Explore Guided ProceduresCT-Guided Procedures in Tarneit and Melbourne West
If you have been referred for CT imaging or a guided procedure and live in or around Tarneit, you may prefer an imaging provider that is convenient for your local area.
CareWell Diagnostix is located at 205 Bethany Road, Tarneit VIC 3029 and supports patients from Tarneit and surrounding Melbourne West communities, including Werribee, Hoppers Crossing, Point Cook, Truganina, Wyndham Vale, Manor Lakes and Williams Landing.
The appropriate imaging or guided procedure depends on your clinical circumstances and referral. If you have already been referred, the CareWell team can provide information about the relevant appointment process and preparation requirements.
Related CareWell Patient Guides
How to Book Diagnostic Imaging in Tarneit & Melbourne West
Learn about referrals, booking, preparation and what to bring to your imaging appointment.
Read the Patient GuideWhat Happens During a Diagnostic Imaging Appointment?
Understand the general steps involved before, during and after different diagnostic imaging examinations.
Related article coming soon.What Questions Should You Ask Before Medical Imaging?
Practical questions that may help you feel prepared before an imaging examination or guided procedure.
Related article coming soon.Frequently Asked Questions
What is a CT-guided procedure?
A CT-guided procedure uses CT imaging to help a specialist identify and access a specific area of the body during a medical procedure. The exact procedure depends on the clinical reason for the referral.
How is CT imaging used during a guided procedure?
CT images can help the specialist identify the relevant anatomy, plan an appropriate approach and guide the procedure towards the intended area. Additional images may be obtained during the procedure when required.
Is a CT-guided procedure the same as a CT scan?
No. A CT scan is an imaging examination, while a CT-guided procedure uses CT imaging as part of a medical procedure. A guided procedure may involve additional preparation and recovery steps.
Why might a doctor recommend CT guidance?
CT guidance may be recommended when detailed cross-sectional imaging can assist the specialist in locating or accessing a particular area of the body.
Does a CT-guided procedure hurt?
The experience varies according to the procedure being performed. Your healthcare team can explain what you may feel, what pain-relief or local anaesthetic options are relevant and what to expect during the procedure.
Do I need to prepare for a CT-guided procedure?
Preparation depends on the procedure. You may receive instructions about eating and drinking, medicines or other requirements. Always follow the instructions provided by your healthcare team.
Can I take my usual medicines before the procedure?
This depends on the procedure and your individual circumstances. Do not stop or change medicines unless your healthcare professional has specifically advised you to do so.
Will CT images be taken during the procedure?
Depending on the procedure, CT images may be taken at different stages to help with positioning, planning and guidance. The imaging approach varies according to the procedure.
How long does a CT-guided procedure take?
Appointment duration varies depending on the procedure, preparation, imaging requirements and any observation or recovery needed afterwards.
What happens after a CT-guided procedure?
You may be observed for a period of time and given specific recovery instructions. If a sample has been obtained, it may be sent for further assessment as appropriate.
Does CareWell Diagnostix provide CT imaging?
CareWell Diagnostix provides CT imaging services in Tarneit. Availability of specific guided procedures depends on the procedure, referral and appointment requirements.
Where is CareWell Diagnostix located?
CareWell Diagnostix has a clinic at 205 Bethany Road, Tarneit VIC 3029. The centre supports patients from Tarneit and surrounding Melbourne West communities.
Key Takeaways
- A CT-guided procedure uses CT imaging to help a specialist plan and guide a medical procedure towards a specific area of the body.
- CT creates cross-sectional images that can provide information about the location and relationship of anatomical structures.
- Additional CT images may be taken during a procedure to assist with positioning and guidance.
- Preparation depends on the specific procedure and your individual circumstances.
- CT guidance is different from a routine CT scan because imaging is being used as part of a medical procedure.
- Your healthcare team can explain the purpose of the procedure, preparation, recovery and expected follow-up based on your individual circumstances.
Been Referred for a CT-Guided Procedure?
If you have been referred for CT imaging or a guided procedure, CareWell Diagnostix can provide information about available services, appointment requirements and preparation.
Located in Tarneit, CareWell supports patients from across Melbourne West and surrounding communities.
Make an AppointmentThis article is provided for general educational purposes only and does not replace advice, diagnosis or treatment from a qualified healthcare professional. The appropriate procedure, imaging guidance, preparation and aftercare depend on your individual circumstances and clinical needs. Always follow the instructions provided by your referring healthcare professional and imaging provider.