Patrick Linson, MD, MPH

SBRT Prostate Radiation Therapy

A focused five-treatment prostate radiation guide.

Patient Guide

SBRT Prostate Radiation Therapy

Stereotactic Body Radiation Therapy (SBRT) is a highly focused form of external-beam radiation. This pathway uses five treatment sessions to treat the prostate while limiting radiation to nearby normal tissue.

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How We Keep Your Treatment Accurate

Fiducial markers help locate the prostate during imaging and treatment.
A self-absorbing rectal spacer (hydrogel) helps move the rectum away from the prostate.
A customized support such as a Vac-Lok cushion helps reproduce your position.
Follow the bladder and bowel instructions supplied by the care team.
CT simulation maps the prostate and nearby organs.
The physician defines the target and organs to protect; the dosimetrist and medical physicist create and verify the plan.
Image guidance, including cone-beam CT, confirms the prostate location and positioning before radiation is delivered.

Before the First Treatment

SBRT may be an option for selected patients with early-stage prostate cancer. Treatment may include the prostate and, in some cases, the seminal vesicles. Dr. Linson will determine whether SBRT is appropriate for you.

Complete consultation and insurance authorization.
Fiducial markers and a rectal spacer (hydrogel) may be placed by Urology or Interventional Radiology.
Complete CT simulation and MRI 7–10 days after the procedure.
The day before, limit large amounts of foods that increase gas.
On the day of CT simulation and treatment, eat lightly and, if possible, have a bowel movement before the appointment.
Follow the bladder and bowel instructions supplied by the care team.
The physician, dosimetrist and medical physicist design and verify the treatment plan. Planning and quality checks commonly take 7–10 business days.

During Treatment

Imaging confirms your position before each treatment. You will meet with the doctor and nurse once during the SBRT course to discuss urinary, bowel, energy or other changes.

Possible short-term effects include urinary frequency, urgency or burning; bowel irritation, loose stools or gas; mild fatigue; and changes in sexual function.
Tell the care team about symptoms that persist or worsen. Seek urgent or emergency care as directed, or call 911 for a medical emergency.

After Treatment

Short-term urinary and rectal symptoms often improve within 4–6 weeks, although recovery varies.
Continue routine care with your primary care clinician and other members of your cancer-care team.

Important: This guide is for patient education only. Your care team’s instructions and individualized treatment prescription take priority.