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Related Experiment Videos

[NMR tomography in plasmacytoma].

A Linden1, C Gückel, R Widder

  • 1Klinik und Poliklinik für Nuklearmedizin, Universität Köln.

Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|January 1, 1992
PubMed
Summary

Magnetic resonance imaging (MRI) is the most sensitive method for detecting multiple myeloma bone marrow infiltration, outperforming X-rays and bone scans. Bone marrow biopsy also showed false negatives.

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Area of Science:

  • Oncology
  • Radiology
  • Pathology

Background:

  • Multiple myeloma is a cancer of plasma cells, often affecting the bone marrow.
  • Accurate detection of bone marrow infiltration is crucial for staging and treatment planning.
  • Various imaging and biopsy techniques are used, but their comparative sensitivity is debated.

Purpose of the Study:

  • To compare the diagnostic accuracy of Magnetic Resonance imaging (MRI), X-ray, bone scintigraphy, bone marrow scintigraphy, and bone marrow biopsy for detecting bone marrow infiltration in multiple myeloma patients.
  • To determine the most sensitive imaging modality for identifying bone marrow involvement in multiple myeloma.

Main Methods:

  • A comparative study involving 20 patients diagnosed with multiple myeloma.
  • Evaluation of bone marrow infiltration using MRI, conventional X-ray, bone scintigraphy, bone marrow scintigraphy, and bone marrow biopsy.

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  • Direct comparison of findings across different imaging modalities and biopsy in specific anatomical regions.

    • Main Results:

    • MRI demonstrated the highest sensitivity in detecting bone marrow infiltration.
    • X-ray examinations were the second most sensitive imaging method.
    • Bone scintigraphy and bone marrow scintigraphy exhibited a higher rate of false-negative results.
    • Bone marrow biopsy yielded false-negative results in 4 patients with confirmed pathology via MRI and X-ray.
    • No false-positive results were observed for any imaging method.

    Conclusions:

    • MRI is the most effective imaging technique for assessing bone marrow infiltration in multiple myeloma.
    • Conventional X-rays are also valuable, while bone scintigraphy methods are less reliable due to higher false-negative rates.
    • Careful interpretation is needed, as bone marrow biopsy can also produce false negatives when compared to advanced imaging.