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Guided Biopsy Needle Localization for Bone Marrow Aspiration/Biopsy (with MRI guidance)

Published: August 9, 2026Updated: August 16, 2026

This test involves using MRI imaging to precisely locate a needle during a bone marrow procedure, which may include either aspiration (taking a sample) or biopsy (removing a small tissue sample) from your bone marrow.

Quick summary

["MRI guidance improves accuracy and safety during bone marrow sampling or biopsy procedures."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
80498-9
Short code
MR Guided Brst-L Needle loc
Synonyms
MR Guided Brst-L Needle loc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Is Performed

Your healthcare provider may recommend this test if you have conditions that require bone marrow evaluation, such as blood disorders (e.g., anemia, leukemia), cancer screening, or assessing immune function. MRI guidance helps ensure the needle is placed correctly to avoid complications like nerve or vessel damage.

Procedure Overview

You’ll lie on an MRI table while a needle is guided under imaging to reach your bone marrow. The procedure may involve a small injection for numbing. The MRI provides real-time images to confirm the needle’s position before sampling or biopsy.

Preparation

No special preparation is needed, but inform your provider about any allergies, medications (especially blood thinners), or pregnancy. Fast if instructed for contrast dye use, if applicable.

Risks and Complications

Common risks include mild bruising, soreness, or infection at the site. Rarely, deeper complications like nerve injury or bleeding may occur. MRI exposure is safe for most people, but avoid metal objects during the scan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

MRI-Guided Bone Marrow Procedure

Frequently asked questions

How long will the MRI-guided procedure take?
The procedure itself typically takes 15–45 minutes, but the full process (preparation, imaging, and follow-up) may extend to 1–2 hours.
Will I feel pain during the procedure?
You’ll likely feel pressure or a slight pinch during needle insertion, but local anesthesia numbs the area. You may hear MRI machine noise but can communicate with staff.
Can I eat or drink before the procedure?
Check with your provider first, as some patients may need to fast if contrast dye is used. Generally, light snacks are allowed unless instructed otherwise.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy