15 Frequently Asked Questions : Proton Therapy in India for Bangladeshi Patients

Q1 · What is Proton Therapy?

Proton Therapy is a type of external-beam radiation therapy that uses high-energy protons to deliver radiation to a tumour. Like conventional radiation, Proton Therapy damages the DNA of cancer cells. When the damage is sufficiently severe, cancer cells can stop dividing or die. The major difference is how the radiation dose is deposited.

Conventional Photon Radiation

Photon radiation travels through the body and continues beyond the tumour, exposing tissues along its path and beyond the target.

Proton Radiation

Protons can be planned to deposit much of their radiation dose at a specific depth and then stop, reducing the amount of radiation delivered beyond the target.

This physical property is sometimes called the Bragg peak. The practical objective is to deliver the prescribed dose to the tumour while reducing unnecessary radiation exposure to surrounding normal tissues.

Potential Advantages

For selected patients, Proton Therapy may

• Reduce radiation dose to nearby healthy tissues
• Reduce radiation exposure beyond the tumour
• Help protect critical organs close to the treatment area
• Be useful when tumours are close to sensitive structures
• Be valuable in selected children because of the importance of reducing unnecessary radiation exposure to developing tissues

However, the potential advantage depends on the individual treatment plan. A conventional photon technique such as IMRT or VMAT may provide an equally appropriate or preferable treatment plan for some patients.

Q2 · How much does Proton Therapy cost in Bangladesh compared with India?

Proton Therapy is generally more expensive than many conventional radiation techniques because of the specialised equipment, facility requirements, treatment planning and multidisciplinary infrastructure involved.

The total cost depends on

• Cancer type
• Tumour location
• Treatment objective
• Number of fractions
• Proton treatment technique
• Treatment planning
• Imaging
• Immobilisation
• Anaesthesia where required
• Concurrent chemotherapy
• Hospitalisation
• Additional cancer medicines
• Follow-up

For planning purposes, this guide uses

• US$1 ≈ BDT 122
• US$1 ≈ INR 96

Potential savings are indicative planning ranges and are not guaranteed. Actual costs can vary substantially according to the treatment centre, cancer type, treatment complexity, number of fractions, treatment planning, medicines, anaesthesia, hospitalisation and associated cancer treatment. Proton Therapy can be substantially more expensive than conventional radiation, and evidence comparing proton and photon treatment continues to develop for different cancer types.

Patients should ask whether the quotation includes

• Proton-oncology consultation
• Radiation-oncology consultation
• Pathology review
• CT simulation
• MRI fusion where required
• Treatment planning
• Dosimetry
• Immobilisation
• Proton treatment sessions
• Image guidance
• Anaesthesia where required
• Concurrent chemotherapy
• Other cancer medicines
• Hospitalisation
• Follow-up consultations
• Additional imaging

Patients should request a detailed written quotation and ask the treatment centre to specify the number of planned fractions and what is included in the total package.

Q3 · Which Indian cities can Bangladeshi patients consider for Proton Therapy?

For Proton Therapy specifically, Bangladeshi patients should verify the availability of an operating proton facility and confirm that the centre is currently accepting the particular cancer type before making travel arrangements. The choice of city should be based on the patient's diagnosis and the availability of the required proton service rather than city size alone.

Q4 · Which hospitals in India can Bangladeshi patients consider for Proton Therapy and Modern Cancer Treatment?

The following hospitals are part of the established Indian hospital reference list. Because Proton Therapy is a highly specialised service, patients should specifically confirm whether the required proton service is available at the selected centre before travelling.

Q5 · What types of Proton Therapy and Modern Cancer Treatments are available?

Proton Therapy itself can be delivered using different technological approaches and treatment-planning methods.

1. Passive Scattering Proton Therapy

An earlier proton-delivery approach that uses scattering systems to spread and shape the proton beam.

2. Pencil Beam Scanning

Pencil beam scanning directs narrow proton beams across the tumour according to the treatment plan.

It can allow highly conformal dose distribution and is particularly useful for selected complex tumour shapes.

3. Intensity-Modulated Proton Therapy

Intensity-modulated proton approaches can vary beam intensity and delivery to create a customised dose distribution.

4. Image-Guided Proton Therapy

Imaging may be used to improve patient positioning and treatment accuracy.

5. Proton Therapy for Brain Tumours

Proton treatment may be considered for selected brain tumours, particularly where reducing radiation to surrounding normal brain or other critical structures is important.

6. Proton Therapy for Skull-Base Tumours

Tumours close to the brainstem, optic structures and other sensitive anatomy may require particularly careful radiation planning.

7. Proton Therapy for Head and Neck Cancers

In selected patients, proton therapy may help reduce radiation exposure to nearby normal structures.

8. Proton Therapy for Spine Tumours

Selected spinal tumours may be considered for proton treatment when the tumour is close to the spinal cord or other critical structures.

9. Proton Therapy for Paediatric Cancers

Children may sometimes be considered for proton therapy because limiting unnecessary radiation exposure to developing tissues can be particularly important.

10. Proton Therapy for Selected Thoracic Cancers

Selected lung and mediastinal tumours may be considered after detailed radiation planning.

11. Proton Therapy for Selected Prostate Cancers

Proton therapy is available as one radiation option for selected prostate cancer patients, although conventional modern photon radiation is also an established treatment option.

12. Proton Therapy Combined with Chemotherapy

Some cancers require radiation and chemotherapy together.

13. Proton Therapy Combined with Surgery

Radiation may be delivered before or after surgery depending on the tumour.

14. Proton Therapy Combined with Other Systemic

Treatment

Selected patients may receive targeted therapy, immunotherapy or hormone therapy according to the cancer.

15. Conventional Advanced Radiotherapy as an

Alternative

Modern photon-based techniques such as IMRT, IGRT, VMAT and stereotactic radiotherapy may provide highly conformal treatment for many cancers.

The appropriate treatment should be determined through comparison of actual radiation plans rather than assuming that Proton Therapy is automatically the preferred option.

Q6 · Who may be suitable for Proton Therapy?

Proton Therapy may be considered when the planned proton dose distribution offers a clinically meaningful potential advantage.

Potential situations include tumours

• Close to critical organs
• Near the brain or spinal cord
• Near the optic structures
• Near the heart
• Near the lungs
• Near other sensitive organs
• In children where reducing unnecessary radiation exposure may be important
• In selected patients requiring re-irradiation

Proton Therapy has been used for cancers involving the brain, eye, head and neck, spine, lung and prostate, among other sites.

Previous Radiation

Patients who have already received radiation require particularly careful assessment.

The previous radiation dose and treatment field must be reviewed before considering additional radiation.

Proton Therapy is not automatically suitable when:

• The tumour is not appropriately located
• Conventional radiation can achieve a comparable or adequate dose distribution
• The expected benefit does not justify the additional cost or travel
• The required proton facility or treatment protocol is unavailable

A radiation oncologist should compare proton and photon treatment plans when the choice is clinically relevant.

Q7 · What tests are required before Proton Therapy?

Proton Therapy planning requires detailed anatomical and cancer information.

Depending on the cancer, investigations may include

• Biopsy
• Histopathology
• Immunohistochemistry
• Molecular testing
• CT scan
• MRI
• PET-CT
• Ultrasound
• Endoscopy
• Blood tests
• Previous radiation records

CT Simulation

A planning CT is generally important for determining

• Tumour location
• Target volume
• Nearby organs
• Patient positioning
• Proton beam path

MRI Fusion

For brain, head-and-neck, spine and other selected cancers, MRI information may be incorporated into treatment planning.

PET-CT

PET-CT may help determine active tumour areas in selected cancers.

Previous Radiation Review

Patients who previously received radiation should provide

• Previous treatment plan
• Total dose
• Fractionation
• Treatment area
• Dose distribution if available

Additional Assessment

Depending on the cancer, the patient may require

• Blood counts
• Kidney-function tests
• Liver-function tests
• Cardiac evaluation
• Pulmonary assessment
• Anaesthesia assessment
• Neurocognitive assessment

The exact tests depend on the cancer and treatment plan.

Q8 · What medical records should Bangladeshi patients send before travelling?

Bangladeshi patients should send a complete cancer-treatment file for preliminary review.

Important documents include

• Biopsy report
• Histopathology report
• Immunohistochemistry report
• Molecular-testing report
• Genetic-testing report where applicable
• CT scan reports
• CT images
• MRI reports
• MRI images
• PET-CT reports
• PET-CT images
• Previous operation reports
• Previous chemotherapy records
• Previous radiation-treatment summary
• Previous radiation dose
• Previous radiation treatment plan if available
• Current medication list
• Blood-test reports
• Discharge summaries

Patients should also provide

• Exact cancer diagnosis
• Cancer stage
• Date of diagnosis
• Current symptoms
• Previous treatment
• Response to treatment
• Current medications
• Previous radiation exposure
• Current oncologist's recommendation
• Known molecular or biomarker results

For patients who have already received radiation, previous treatment information is especially important because the amount and location of prior radiation can affect the safety and feasibility of additional radiation. Where appropriate, pathology slides or tissue blocks may be requested for review.

Q9 · How does Proton Therapy work?

Proton Therapy generally involves several stages.

Step 1: Cancer Diagnosis Review

The oncology team confirms

• Cancer type
• Stage
• Tumour location
• Previous treatment
• Treatment objective

Step 2: Radiation-Oncology Consultation

The radiation oncologist evaluates whether Proton Therapy could provide a meaningful advantage.

Step 3: Comparison with Other Radiation Techniques

The team may compare Proton Therapy with

• IMRT
• VMAT
• IGRT
• Stereotactic radiation
• Other appropriate techniques

The objective is to determine which treatment can deliver the required tumour dose while appropriately limiting exposure to normal tissues.

Step 4: CT Simulation

A planning CT establishes the patient's anatomy and treatment position.

Step 5: Treatment Planning

The radiation team determines

• Target volume
• Proton beam direction
• Dose
• Fractionation
• Organs at risk
• Beam arrangement

Step 6: Quality Assurance

The treatment plan undergoes technical verification before treatment begins.

Step 7: Proton Treatment

The patient is positioned on the treatment table and the proton beam is delivered according to the approved plan.

The machine generally does not touch the patient.

Step 8: Monitoring

The radiation team monitors

• Positioning
• Treatment tolerance
• Side effects
• Clinical status

Step 9: Follow-Up

After treatment, the patient may require

• Imaging
• Oncology review
• Blood tests
• Additional systemic therapy
• Rehabilitation
• Long-term surveillance

Q10 · What are the alternatives to Proton Therapy?

Proton Therapy is one of several radiation-treatment options.

IMRT

Intensity-Modulated Radiation Therapy can provide highly conformal photon radiation and is widely used for many cancers.

VMAT

VMAT delivers modulated radiation while the machine rotates around the patient.

IGRT

Image-guided radiation can improve treatment positioning and targeting.

Stereotactic Radiation

For selected tumours, SRS, SRT or SBRT can deliver highly focused radiation over a limited number of treatments.

Brachytherapy

Internal radiation may be appropriate for selected cancers.

Surgery

Some localised tumours may be treated primarily with surgery.

Chemotherapy

Systemic treatment may be used before, after or instead of local treatment depending on the cancer.

Immunotherapy

Selected cancers may respond to immunotherapy.

Targeted Therapy

Molecularly selected cancers may be treated with targeted medicines.

Active Surveillance

Selected low-risk cancers may sometimes be monitored instead of immediately treated.

Why comparison matters

The National Cancer Institute notes that proton therapy may reduce radiation exposure to normal tissues, but research comparing proton and conventional radiation continues across cancer types.

Therefore, patients should ask the radiation team to compare the expected dose distribution and clinical benefits of Proton Therapy with appropriate photon-based treatment.

Q11 · What should Bangladeshi patients ask before accepting a Proton Therapy quotation?

Patients should ask

• What is the exact cancer diagnosis?
• What is the cancer stage?
• What is the treatment objective?
• Why is Proton Therapy being recommended?
• What specific advantage is expected over IMRT or VMAT?
• Has a comparative radiation plan been prepared?
• Which organs are expected to receive less radiation?
• What proton technology will be used?
• Is pencil beam scanning available?
• How many proton treatment sessions are required?
• Is CT simulation included?
• Is MRI fusion included where required?
• Is treatment planning included?
• Is dosimetry included?
• Is image guidance included?
• Are immobilisation devices included?
• Is chemotherapy required?
• Are other cancer medicines required?
• What side effects are expected?
• What additional expenses could arise?
• What happens if treatment needs to be changed?
• How long will the patient need to stay in India?
• When can the patient return to Bangladesh?
• What follow-up imaging is required?
• Can follow-up be coordinated with an oncologist in Bangladesh?

Patients should request a written quotation and treatment plan before travelling.

Q12 · How long should Bangladeshi patients stay in India for Proton Therapy?

The duration depends on the cancer and prescribed proton treatment schedule.

Initial Assessment

Approximately 3–7 days may be required for

• Oncology consultation
• Radiation-oncology consultation
• Pathology review
• Imaging
• CT simulation
• Treatment planning

Proton Treatment

Some patients may receive a relatively short course, while others may require several weeks of daily treatment.

The number of fractions depends on

• Cancer type
• Tumour location
• Treatment objective
• Total prescribed dose
• Fractionation strategy

External-beam radiation is commonly delivered in repeated sessions, although schedules vary significantly by cancer and treatment approach.

International Patients

Bangladeshi patients should allow additional time for

• Treatment planning
• Additional investigations
• Treatment verification
• Medical review
• Side-effect management
• Unexpected schedule changes

Patients should not book a rigid return flight until the treatment team confirms the expected treatment schedule.

Q13 · What is recovery like after Proton Therapy?

Recovery varies according to

• Cancer type
• Treatment site
• Total radiation dose
• Number of fractions
• Concurrent chemotherapy
• Patient's general health

Proton Therapy can still cause radiation side effects because the therapeutic radiation itself can affect normal tissues close to the treatment target.

Possible Side Effects

Depending on the treatment area, patients may experience

• Fatigue
• Skin irritation
• Redness
• Swelling
• Appetite changes
• Nausea
• Local pain
• Headache
• Mouth or throat symptoms
• Difficulty swallowing
• Bowel changes
• Urinary symptoms
• Site-specific effects

The side effects depend heavily on the area being treated.

Brain and Head-and-Neck Treatment

Patients may experience

• Fatigue
• Headache
• Skin changes
• Hair loss in the treatment area
• Mouth or throat discomfort
• Swallowing difficulties depending on the treatment field

Chest Treatment

Possible effects may include

• Fatigue
• Cough
• Chest discomfort
• Difficulty breathing in some cases

Abdominal or Pelvic Treatment

Possible effects may include

• Nausea
• Diarrhoea
• Abdominal discomfort
• Urinary symptoms

Paediatric Patients

Children require particularly careful long-term follow-up because treatment-related effects can sometimes appear months or years after therapy.

Patients should follow the radiation team's instructions regarding

• Skin care
• Nutrition
• Hydration
• Activity
• Medicines
• Follow-up imaging

Q14 · How can follow-up be managed after returning to Bangladesh?

Before returning to Bangladesh, patients should obtain a complete treatment file.

It should include

• Final diagnosis
• Cancer stage
• Proton treatment summary
• Total proton dose
• Number of fractions
• Treatment area
• Treatment technique
• Radiation-plan information where available
• Concurrent chemotherapy details
• Other cancer medicines
• Pathology reports
• Molecular-testing results
• Imaging reports
• Follow-up recommendations

Follow-Up in Bangladesh

Depending on the cancer, follow-up may involve

• Radiation oncologist
• Medical oncologist
• Surgical oncologist
• Imaging specialist
• Other relevant specialists

Follow-up may include

• CT
• MRI
• PET-CT
• Blood tests
• Tumour markers where appropriate
• Clinical examination

Patients should ask the treating team

• When should the first follow-up occur?
• When should imaging be performed?
• Which symptoms require urgent assessment?
• What medicines should continue?
• Is additional chemotherapy required?
• Is additional radiation planned?

Urgent Medical Attention

Patients should seek prompt medical care for

• Severe breathing difficulty
• High fever
• Severe dehydration
• Persistent vomiting
• Severe uncontrolled pain
• Significant bleeding
• Sudden neurological symptoms
• Severe weakness
• Rapid deterioration

Q15 · Should a Bangladeshi patient travel to India for Proton Therapy?

Bangladeshi patients may consider India for Proton Therapy when a specialist determines that proton treatment may provide a meaningful clinical or dosimetric advantage.

Potential situations may include selected

• Brain tumours
• Skull-base tumours
• Head and neck cancers
• Spine tumours
• Eye tumours
• Paediatric cancers
• Lung or thoracic tumours
• Prostate cancers
• Other tumours close to critical structures

Proton Therapy is not automatically preferable for every cancer. The NCI notes that proton therapy can reduce radiation exposure to nearby normal tissue, but comparative evidence is still developing for different cancers and treatment situations.

Before travelling, Bangladeshi patients should compare

• Exact cancer diagnosis
• Cancer stage
• Treatment objective
• Proton eligibility
• Expected benefit over IMRT/VMAT or another technique
• Treatment plan
• Number of fractions
• Expected stay in India
• Total treatment cost
• Additional cancer-treatment requirements
• Follow-up arrangements in Bangladesh

Patients should ideally send their pathology reports, imaging, previous treatment records and previous radiation plans before travelling. The final decision regarding Proton Therapy should be made after individual assessment by an appropriately qualified radiation-oncology team.