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Radiation therapy has become increasingly precise, but one important challenge remains: the position of a tumour can change slightly between treatment sessions. Even breathing, digestion, bladder filling, or small changes in body position can affect where the tumour sits.
Image Guided Radiation Therapy in Indirapuram uses imaging as part of the treatment process to help the radiation team verify the treatment area's position before or during radiation delivery. This can support more accurate treatment planning and delivery for selected cancer patients.
Image Guided Radiation Therapy, commonly called IGRT, combines radiation treatment with imaging technology.
Before delivering radiation, the treatment team may use imaging to check the position of the tumour or relevant anatomical structures. Depending on the treatment system and cancer being treated, different types of imaging may be used.
The purpose is to help ensure that the radiation is delivered according to the planned treatment position.
IGRT is particularly useful when a tumour is close to sensitive organs or when its position can vary during the treatment course.
The human body is constantly moving and changing.
For example, tumours in the chest can be affected by breathing. Structures in the abdomen and pelvis can shift depending on digestion, bowel movement, or bladder filling. Even a small difference in patient positioning can influence the treatment area.
Image guidance gives the radiation team an opportunity to check positioning rather than relying entirely on the patient's position from an earlier planning scan.
The process begins with detailed imaging and treatment planning.
A radiation oncologist and treatment-planning team identify the tumour and nearby structures that need consideration. A customised radiation plan is then created.
During subsequent treatment sessions, imaging may be performed immediately before radiation delivery. The treatment team compares the current position with the planned position and can make appropriate adjustments when required.
The exact process depends on the equipment, treatment site, and radiation technique being used.
IGRT may be used in the treatment of various cancers when accurate positioning is important.
It can be considered for selected cancers involving areas such as:
Prostate
Head and neck
Lung
Brain
Spine
Abdomen
Pelvis
The suitability of IGRT is determined by the radiation oncology team based on the patient's diagnosis and treatment plan.
It is not automatically necessary for every radiation treatment.
One of the key advantages of image guidance is improved confidence in patient positioning.
Potential benefits include:
More accurate localisation of the treatment area
Better verification of positioning
Assistance in managing anatomical movement
Greater precision when treating selected tumours
Support for protecting nearby healthy structures
However, the benefits depend on the individual treatment situation. Image guidance is one component of a larger radiation treatment process and does not eliminate all potential risks or side effects.
Not exactly.
Radiation therapy refers broadly to treatment using radiation to control or destroy cancer cells. IGRT refers to the use of imaging to assist with accurate positioning and treatment delivery.
IGRT can be incorporated into different radiation treatment approaches.
For example, a patient receiving external beam radiation may have image guidance incorporated into their treatment plan. More specialised radiation techniques may also use image guidance where appropriate.
The patient is positioned on the treatment table according to the established treatment plan.
The radiation team may then take an image or perform another form of image verification. If there is a relevant positioning difference, adjustments can be made before treatment is delivered.
The patient may be asked to remain still during the process. Depending on the treatment area, specific instructions may also be given regarding breathing, bladder preparation, or other positioning requirements.
Once the treatment position is confirmed, radiation is delivered according to the approved plan.
The imaging portion of IGRT is generally not painful. The radiation treatment itself is also not usually felt while the machine is delivering radiation.
However, patients can experience side effects from radiation depending on the body area being treated and the total treatment dose.
Before starting treatment, patients should discuss possible side effects with their radiation oncologist and report concerning symptoms during the treatment course.
It can be tempting to think that advanced technology alone determines the success of radiation therapy. In reality, technology is only one part of the process.
Accurate diagnosis, appropriate treatment selection, detailed planning, correct patient positioning, quality checks, and regular clinical assessment all contribute to safe and effective radiation care.
The radiation oncologist determines whether image guidance provides meaningful value for a particular patient.
If IGRT has been recommended, patients may want to ask:
Why is image guidance being used for my treatment?
Which imaging method will be used?
How often will imaging be performed?
Does my tumour move with breathing or other body functions?
How will nearby organs be protected?
How long will each treatment session take?
What side effects should I watch for?
Clear answers can help patients understand what will happen before treatment begins.
When considering a centre for radiation treatment, patients can look beyond the name of the technology. The experience of the radiation oncology team, treatment-planning capabilities, quality-assurance procedures, availability of appropriate imaging systems, and coordination with other cancer specialists are also important considerations.
Patients should discuss their individual diagnosis with a qualified radiation oncologist to determine whether IGRT or another radiation technique is appropriate.
No. Image guidance is particularly useful in situations where accurate positioning or tumour movement is an important consideration. The radiation oncologist decides whether it is appropriate.
No. Image guidance can improve treatment accuracy, but radiation can still affect healthy tissues near the treatment area. Possible side effects depend on the treatment site and radiation dose.
The duration varies according to the treatment technique, treatment area, imaging process, and individual plan. The radiation team can provide an estimated session time before treatment begins.
