TRANSRECTAL ULTRASONOGRAPHY (TRUSS) ULTRASOUND SCAN

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About The Test

A Transrectal Ultrasonography (TRUS) Ultrasound Scan uses high-frequency sound waves delivered through a small probe inserted into the rectum. The probe creates real-time images of the prostate, seminal vesicles, and nearby structures. This outpatient procedure typically takes 10–20 minutes.


What is Transrectal Ultrasonography (TRUS) Ultrasound Scan?

  • Definition: An internal ultrasound of the prostate gland performed via the rectum.
  • Technology: Uses a lubricated transducer probe (about the width of a finger) that emits painless sound waves.
  • Purpose: Provides detailed pictures to detect abnormalities, guide biopsies, or monitor known conditions.

Types of Transrectal Ultrasonography (TRUS) Ultrasound Scan

Diagnostic TRUS

  • Used to measure prostate size, detect cysts, stones, or enlargement.
  • No needles involved; purely imaging.

TRUS-Guided Biopsy

  • Combines imaging with targeted needle sampling of suspicious areas.
  • Performed under local anaesthesia; 6–12 tissue samples may be taken.

List of Parameters

  • Prostate volume (size in cc).
  • Presence of hypoechoic lesions (dark spots that might indicate cancer).
  • Capsular integrity (whether the outer layer is intact).
  • Seminal vesicle appearance.
  • Blood flow (using colour Doppler).

Why This Test

  • Investigate prostate enlargement and BPH.
  • Check for prostatitis (inflammation).
  • Guide prostate biopsy when PSA is high.
  • Evaluate male infertility by examining seminal vesicles and ejaculatory ducts.

When to Take Test

You may need a TRUS if you have:

  • Elevated or rising PSA (prostate-specific antigen) levels.
  • Trouble urinating, weak stream, or frequent nighttime urination.
  • A family history of prostate disorders or prostate cancer.
  • Suspicious findings on a digital rectal exam (DRE).

Benefits

Benefits of Taking the Transrectal Ultrasonography (TRUS) Ultrasound Scan

  • Real-time imaging allows immediate evaluation.
  • No radiation—safe for repeated use.
  • Outpatient procedure—return home the same day.
  • Accurate guidance for biopsies, reducing unnecessary tissue removal.

Illnesses Diagnosed with Transrectal Ultrasonography (TRUS) Ultrasound Scan

  • Benign Prostatic Hyperplasia (BPH)
  • Prostate cancer (initial detection and staging)
  • Chronic prostatitis
  • Seminal vesicle cysts or obstruction
  • Abscesses or calcifications

Preparing for test

  • Bowel prep: Mild enema or laxative the night before (as advised).
  • Antibiotics: Take prescribed tablets 1 hour prior if recommended.
  • Comfort clothing: Wear loose trousers or kurta for easy undressing from the waist down.

Pre-requisites Transrectal Ultrasonography (TRUS) Ultrasound Scan

  • Bring valid ID and doctor’s prescription.
  • Inform the team about blood-thinning medications or allergies.
  • Empty bladder 30 minutes before arrival.

Best Time to Take the Transrectal Ultrasonography (TRUS) Ultrasound Scan

  • Schedule early morning to follow fasting or antibiotic instructions easily.
  • Avoid booking during acute urinary infection; postpone until infection clears.

Eligibility

  • Men aged 40+ with urinary symptoms or elevated PSA.
  • Younger men with family history or specific symptoms.
  • Not recommended if you have active rectal bleeding, severe haemorrhoids, or anal stricture—consult your doctor first.

Procedure for Taking a Transrectal Ultrasonography (TRUS) Ultrasound Scan

  1. Position: Lie on your left side with knees bent.
  2. Probe insertion: A lubricated, covered probe is gently inserted into the rectum.
  3. Image capture: The probe rotates to capture multiple angles.
  4. Biopsy (if needed): Local anaesthetic is applied, then thin needles collect tissue.
  5. Completion: Probe is removed; you can dress and rest briefly.

Caution Before Taking the Test

  • Stop blood thinners only if your doctor advises.
  • Report fever or rectal pain—reschedule if unwell.
  • Avoid heavy meals 2 hours prior to reduce nausea.

Test Results

Explanations and Results

Result / StepDetails
Same-day reportImaging findings available within 30–60 minutes.
Biopsy resultsTissue samples sent to pathology; results in 3–5 working days.
Next stepsNormal: Routine follow-up or lifestyle advice. Abnormal: Further imaging, biopsy, or specialist referral.

Risks & Limitations

  • Minimal risk: Temporary discomfort, slight bleeding, or infection (rare).
  • Limitations: May miss very small cancers; additional tests like MRI or biopsy could be required.
  • Antibiotic cover: Sometimes prescribed to reduce infection risk.

FAQs

Is the Transrectal Ultrasonography (TRUS) Ultrasound Scan painful?

Most patients feel mild pressure, not pain. Local anaesthesia minimises discomfort during biopsies.

How soon can I drive after the scan?

You can drive immediately unless you received sedatives (rare). Cadabams Diagnostics staff will confirm before discharge.

Are there dietary restrictions after the scan?

Resume normal diet. Drink extra water to flush out any contrast dye used during biopsy.

Will I need a repeat TRUS?

Only if your doctor monitors prostate size, PSA trends, or post-treatment changes.

Does insurance cover the test?

Most policies cover medically indicated TRUS; Cadabams Diagnostics provides cashless and reimbursement options.

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