Correlation of mean apparent diffusion coefficient (ADC) and maximal standard uptake value (SUVmax) evaluated by diffusion-weighted MRI and 18F-FDG-PET/CT in children with Hodgkin lymphoma: a feasibility study.
In: Radiology & Oncology, Jg. 57 (2023-06-01), Heft 2, S. 150-157
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Zugriff:
The objective was to analyse if magnetic resonance imaging (MRI) can act as a non-radiation exposure surrogate for (18)F-Fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) in children with histologically confirmed Hodgkin lymphoma (HL) before treatment. This was done by analysing a potential correlation between apparent diffusion coefficient (ADC) in MRI and the maximum standardized uptake value (SUVmax) in FDG-PET/CT. Seventeen patients (six female, eleven male, median age: 16 years, range: 12–20 years) with histologically confirmed HL were retrospectively analysed. The patients underwent both MRI and (18)F-FDG PET/CT before the start of treatment. (18)F-FDG PET/CT data and correlating ADC maps in MRI were collected. For each HL-lesion two readers independently evaluated the SUVmax and correlating meanADC. The seventeen patients had a total of 72 evaluable lesions of HL and there was no significant difference in the number of lesions between male and female patients (median male: 15, range: 12–19 years, median female: 17 range: 12–18 years, p = 0.021). The mean duration between MRI and PET/CT was 5.9 ± 5.3 days. The inter-reader agreement as assessed by the intraclass correlation coefficient (ICC) was excellent (ICC = 0.98, 95% CI: 0.97–0.99). The correlated SUVmax and meanADC of all 17 patients (ROIs n = 72) showed a strong negative correlation of −0.75 (95% CI: −0.84, – −0.63, p = 0.001). Analysis revealed a difference in the correlations of the examination fields. The correlated SUVmax and meanADC showed a strong correlation at neck and thoracal examinations (neck: −0.83, 95% CI: −0.93, – −0.63, p < 0.0001, thoracal: −0.82, 95% CI: −0.91, – −0.64, p < 0.0001) and a fair correlation at abdominal examinations of −0.62 (95% CI: −0.83, – −0.28, p = 0.001). SUVmax and meanADC showed a strong negative correlation in paediatric HL lesions. The assessment seemed robust according to inter-reader agreements. Our results suggest that ADC maps and meanADC have the potential to replace PET/CT in the analysis of disease activity in paediatric Hodgkin lymphoma patients. This may help reduce the number of PET/CT examinations and decrease radiation exposure to children. [ABSTRACT FROM AUTHOR]
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Titel: |
Correlation of mean apparent diffusion coefficient (ADC) and maximal standard uptake value (SUVmax) evaluated by diffusion-weighted MRI and 18F-FDG-PET/CT in children with Hodgkin lymphoma: a feasibility study.
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Autor/in / Beteiligte Person: | Rosbach, Nicolas ; Fischer, Sebastian ; Koch, Vitali ; Vogl, Thomas J. ; Bochennek, Konrad ; Lehrnbecher, Thomas ; Mahmoudi, Scherwin ; Grünewald, Leon ; Grünwald, Frank ; Bernatz, Simon |
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Zeitschrift: | Radiology & Oncology, Jg. 57 (2023-06-01), Heft 2, S. 150-157 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 1318-2099 (print) |
DOI: | 10.2478/raon-2023-0021 |
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