Role of 2-(fluorine-18) Fluoro-2-deoxy-D-glucose Positron Emission Tomography/Computed Tomography in Initial Staging and Bone Marrow Involvement Prediction in Patients with Newly Diagnosed Lymphoma in Correlation with Bone Marrow Study
- 1Department of Nuclear Medicine, AII India Institute of Medical Sciences, Raipur, Chhattisgarh, India.
- 2Department of Radiation Oncology, AII India Institute of Medical Sciences, Raipur, Chhattisgarh, India.
- 0Department of Nuclear Medicine, AII India Institute of Medical Sciences, Raipur, Chhattisgarh, India.
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May 31, 2024
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View abstract on PubMed
Summary
This summary is machine-generated.18F-FDG PET-CT effectively detects bone marrow involvement in lymphoma patients, potentially obviating the need for invasive bone marrow biopsy. This imaging technique aids in disease staging and treatment decisions.
Area Of Science
- Oncology
- Nuclear Medicine
- Radiology
Background
- Lymphoma diagnosis and staging are critical for patient prognosis.
- Bone marrow biopsy is the standard for detecting bone marrow infiltration but is invasive.
- 18F-FDG PET-CT offers a non-invasive method for assessing metabolic activity and detecting disease involvement.
Purpose Of The Study
- To evaluate the utility of 18F-FDG PET-CT in detecting bone marrow and extra-medullary organ involvement in lymphoma.
- To correlate FDG uptake patterns in the bone marrow with bone marrow study findings.
- To assess the role of 18F-FDG PET-CT in lymphoma staging.
Main Methods
- Thirty newly diagnosed lymphoma patients underwent 18F-FDG PET-CT.
- Bone marrow uptake was categorized (diffuse, unifocal, multifocal, no uptake).
- Agreement between PET-CT and bone marrow study was assessed using Cohen's kappa; sensitivity, specificity, PPV, and NPV were calculated.
Main Results
- 18F-FDG PET-CT demonstrated 86.6% sensitivity and 77.7% specificity for detecting bone marrow involvement.
- A moderate agreement (Cohen's kappa = 0.6) was found between PET-CT and bone marrow study.
- The imaging detected bone marrow involvement in 13 of 15 positive cases across Hodgkin lymphoma and non-Hodgkin lymphoma.
Conclusions
- 18F-FDG PET-CT is a sensitive tool for identifying extra-nodal involvement and bone marrow infiltration in lymphoma.
- While not a complete replacement for bone marrow biopsy, PET-CT can help avoid invasive procedures in select cases.
- PET-CT findings can significantly impact disease staging and influence treatment strategies.
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