Let's learn about MRI-Guided Prostate Biopsy?

Have you ever heard of an MRI-guided prostate biopsy? Although it may sound like a complicated name, it is actually an important test for men. Today, we will talk about it in a simple way that you can understand.

What is MRI-guided prostate biopsy?

Simply put, this is a special test that helps doctors diagnose prostate cancer, determine its stage, and plan treatment. This involves taking small tissue samples, called a biopsy, from your prostate using MRI technology and sometimes ultrasound. This tissue sample is then examined under a high-powered microscope by a medical specialist, called a pathologist, to check for cancer cells.

What is this prostate gland?

The prostate is part of the male reproductive and urinary system. It is a small gland about the size of a walnut. It is located in front of your bladder. This gland produces seminal fluid. When you ejaculate, this fluid mixes with the sperm. This fluid keeps the sperm healthy and suitable for conception and pregnancy.

The urethra runs through the prostate gland. This tube is part of your urinary system. When you urinate , urine is carried from the bladder through this tube and out of the penis. It is also the tube that carries seminal fluid and sperm when you ejaculate.

What are the methods for performing a prostate biopsy?

There are actually different ways to do a biopsy. Your doctor will discuss these methods with you and choose the one that best suits your situation. There are two main methods:

• Transrectal biopsy: This is where the doctor takes a tissue sample through your rectum, which is the last part of your large intestine/colon.
• Transperineal biopsy: This involves taking a tissue sample through the perineum, the area of ​​skin between your anus and your scrotum.

What is Multiparametric MRI-assisted prostate biopsy?

Doctors are performing further tests using MRI technology and needle biopsy:

• Multiparametric MRI (mpMRI):Here, the doctor compares the results of a regular MRI with the results of a new MRI. This mpMRI is very sensitive. It can detect possible cancer sites better than a regular MRI. However, an mpMRI alone cannot rule out prostate cancer. In most cases, a prostate biopsy is required.
• Fusion-guided prostate biopsy: This test combines, or 'fuses', MRI and transrectal ultrasound (TRUS) technologies. First, you have an MRI. This helps your doctor find any suspicious areas in your prostate. Then, during the biopsy, your doctor uses a prostate ultrasound probe and advanced software to combine the MRI and ultrasound images. This combined image allows your doctor to take tissue samples from the areas where the problems are most likely to occur.

What does an MRI-assisted prostate biopsy reveal?

With this test, doctors can find the following:

• Prostate cancer and its severity (grade/aggressiveness).
• Recurrent prostate cancer is prostate cancer that comes back after treatment.

What other things do doctors use MRI-guided prostate biopsy for?

If you have prostate cancer, these biopsy results will help your doctor create the most effective treatment plan for you.

It can also detect noncancerous/benign conditions that show similar symptoms to prostate cancer (for example, an elevated PSA blood test). Such conditions include:

• Enlarged prostate (benign prostatic enlargement/hyperplasia or BPE/BPH).
• Prostatitis - infection, inflammation and pain in the prostate gland.

Who needs an MRI-assisted prostate biopsy?

If your PSA (prostate-specific antigen) level is elevated in a blood test, your doctor may do a prostate biopsy, which is done with the help of an MRI. Your doctor may also do a prostate biopsy if your doctor feels a lump or firmness in your prostate during a digital rectal exam (DRE), or if your MRI shows anything suspicious. These changes could be a sign of prostate cancer or a noncancerous problem.

You may also need an MRI-assisted prostate biopsy in these cases:

• If an ultrasound-guided prostate biopsy does not find cancer, but your PSA level continues to rise.
• If you have already been diagnosed with prostate cancer and your doctor is monitoring it (active surveillance).
• If you have been diagnosed with prostate cancer and are considering some focal treatments.

What are the advantages of an MRI-assisted biopsy?

Compared to ultrasound, an MRI can produce clearer, more detailed images of the prostate. This can help pinpoint areas where cancer may be present, where biopsy samples may be needed, and where treatment may be needed. An mpMRI can also reduce the number of biopsies you need to have. It can also detect prostate cancer more effectively than a regular MRI.

What happens before an MRI-assisted prostate biopsy?

To prepare for a prostate biopsy, you should follow your doctor's instructions exactly. You will need to do the following:

• Before the MRI, tell your doctor about any implanted metal devices (e.g., pacemakers, joint replacements).
• Empty your bowels. Some doctors recommend using an enema before a biopsy, but this is not always necessary.
• Stop taking medications such as nonsteroidal anti-inflammatory drugs (NSAIDs) and blood thinners. Some medications can increase the risk of bleeding and bruising.
• To reduce the risk of infection, you may be given antibiotics before and after the test. However, in most cases, antibiotics are not needed for a transperineal prostate biopsy because the risk of infection is low.

What happens during an MRI-assisted prostate biopsy?

First, you will have an MRI. During the MRI, you may be given a special liquid called a contrast dye through an IV (through your vein) to get clearer pictures. You may feel a little cold when the IV is put in.

Rarely, you may have an allergic reaction to the fluid given into your IV. You may have hives (urticaria) and swelling (angioedema), or you may feel nauseous. These reactions often occur right after the IV is given. Your doctor can treat this right away.

A biopsy is usually an outpatient procedure done in a doctor's office, clinic, or hospital. You will be given a local anesthetic to numb the area where the prostate is. Sometimes, you may be given a mild sedative during the biopsy. You will go home the same day. If you are not given a sedative, you probably won't need someone to take you. However, it's a good idea to have someone with you, just in case.

Most doctors take about 12 to 16 tissue samples (cores) from different parts of your prostate. You may feel a pinching sensation during the biopsy. The test may be a little uncomfortable, but it shouldn't be painful.

What happens during a transrectal MRI-guided prostate biopsy?

During a transrectal biopsy, you are lying on your side. During the examination, the doctor:

• After applying a lubricant, the biopsy tool is slowly inserted into your rectum.
• Using a guidance slot on the biopsy instrument, the needle is inserted to administer local anesthetic and take the biopsy.
• Using advanced software and images taken from MRI, the needle is guided and tissue samples are taken.

What happens during a transperineal MRI-guided prostate biopsy?

During a perineal biopsy, you will be lying face up with your legs in stirrups. During the examination, the doctor will:

• An ultrasound probe is inserted into your rectum.
• Your skin and prostate are numbed with a local anesthetic.
• Using advanced software and images taken from MRI, the needle is guided and tissue samples are taken.

What happens after an MRI-assisted prostate biopsy?

Once you have recovered and your vital signs are in good condition, you can go home. You may experience the following:

• You may experience some bleeding from the test site, along with mild pain or discomfort .
• You may need to take antibiotics to prevent infection.
• You may notice a small amount of blood in your urine (hematuria) or blood in your semen (hematospermia) for a few days after the test. If you had a transrectal prostate biopsy, you may also have a small amount of blood in your rectum.

When will the biopsy results be available?

The doctor sends the tissue sample to a lab. It can take about a week, sometimes longer, to get the results.

What do the biopsy results say?

Your biopsy results may look like this:

• Negative `(Negative)`:There are no cancer cells. However, sometimes a false-negative result can occur. This means that you may have cancer even though the test does not show it. If your PSA level is high or you have other signs of prostate cancer, your doctor may order another biopsy in a few months.
• Positive: There are cancer cells. This means that you have prostate cancer. The doctor will talk to you about what to do next, such as treatment or monitoring.
• Suspicious: The results are abnormal and it is not certain that cancer is present. The doctor may recommend further testing or another biopsy in a few months.

How is the severity of prostate cancer determined from biopsy results?

If the pathologist finds cancer cells, they give them a grade from 1 to 5 based on how abnormal they look. They then add the two highest grades together to create a Gleason score (which ranges from 6 to 10). Another way to describe this score is the Grade Group scale (1 to 5).

Higher grade cancers (Grade Group 5) are more likely to be more aggressive and spread (metastasize) than lower grade cancers (Grade Group 1). This grade group helps your doctor choose the best treatment for you.

When should I see the doctor?

If you develop signs of infection, such as fever and chills, after a biopsy, you should contact your doctor.

Also, if you have prostate cancer symptoms or any of these problems, you should talk to your doctor:

• Blood in your urine or semen.
• Erectile dysfunction.
• Inability to control bowel movements (Fecal (bowel) incontinence).
• Frequent urination at night (nocturia).
• Painful urination (dysuria) or ejaculation.
• Urinary incontinence, a weak or stopped urine stream.

If certain tests suggest that you have prostate cancer, your doctor may do a prostate biopsy, which is done with the help of an MRI. The MRI helps your doctor find and target suspicious areas in your prostate. Your doctor may also do a fusion-guided biopsy, which combines MRI and ultrasound. If the biopsy results confirm that you have prostate cancer, your doctor can talk to you about treatment options.

Take-Home Message

Okay, so now you have a better idea of ​​what MRI-assisted prostate biopsy is. While it may sound like a scary word, it is actually an advanced test that can help detect conditions like prostate cancer early.

The most important thing is that if your doctor recommends this test, you should be fully informed and not afraid to go through with it. If you have any concerns, talk to your doctor about them openly. Remember, early detection is the best way to successful treatment.

If you have an elevated PSA level or other symptoms, don't ignore it. See a doctor immediately for advice. We can all live a healthy life!

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