Radiomics features of the spleen as surrogates for CT-based lymphoma diagnosis and subtype differentiation
The spleen is often involved in malignant lymphoma, which manifests on CT as either splenomegaly or focal, hypodense lymphoma lesions. This study aimed to investigate the diagnostic value of radiomics features of the spleen in classifying malignant lymphoma against non-lymphoma as well as the determ...
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| Hauptverfasser: | , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
29 January 2022
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| In: |
Cancers
Year: 2022, Jahrgang: 14, Heft: 3, Pages: 1-15 |
| ISSN: | 2072-6694 |
| DOI: | 10.3390/cancers14030713 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.3390/cancers14030713 Verlag, kostenfrei, Volltext: https://www.mdpi.com/2072-6694/14/3/713 
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| Verfasserangaben: | Johanna S. Enke, Jan H. Moltz, Melvin D'Anastasi, Wolfgang G. Kunz, Christian Schmidt, Stefan Maurus, Alexander Mühlberg, Alexander Katzmann, Michael Sühling, Horst Hahn, Dominik Nörenberg and Thomas Huber |
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| 245 | 1 | 0 | |a Radiomics features of the spleen as surrogates for CT-based lymphoma diagnosis and subtype differentiation |c Johanna S. Enke, Jan H. Moltz, Melvin D'Anastasi, Wolfgang G. Kunz, Christian Schmidt, Stefan Maurus, Alexander Mühlberg, Alexander Katzmann, Michael Sühling, Horst Hahn, Dominik Nörenberg and Thomas Huber |
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| 520 | |a The spleen is often involved in malignant lymphoma, which manifests on CT as either splenomegaly or focal, hypodense lymphoma lesions. This study aimed to investigate the diagnostic value of radiomics features of the spleen in classifying malignant lymphoma against non-lymphoma as well as the determination of malignant lymphoma subtypes in the case of disease presence—in particular Hodgkin lymphoma (HL), diffuse large B-cell lymphoma (DLBCL), mantle-cell lymphoma (MCL), and follicular lymphoma (FL). Spleen segmentations of 326 patients (139 female, median age 54.1 +/− 18.7 years) were generated and 1317 radiomics features per patient were extracted. For subtype classification, we created four different binary differentiation tasks and addressed them with a Random Forest classifier using 10-fold cross-validation. To detect the most relevant features, permutation importance was analyzed. Classifier results using all features were: malignant lymphoma vs. non-lymphoma AUC = 0.86 (p < 0.01); HL vs. NHL AUC = 0.75 (p < 0.01); DLBCL vs. other NHL AUC = 0.65 (p < 0.01); MCL vs. FL AUC = 0.67 (p < 0.01). Classifying malignant lymphoma vs. non-lymphoma was also possible using only shape features AUC = 0.77 (p < 0.01), with the most important feature being sphericity. Based on only shape features, a significant AUC could be achieved for all tasks, however, best results were achieved combining shape and textural features. This study demonstrates the value of splenic imaging and radiomic analysis in the diagnostic process in malignant lymphoma detection and subtype classification. | ||
| 650 | 4 | |a computer aided diagnosis | |
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| 650 | 4 | |a malignant lymphoma | |
| 650 | 4 | |a quantitative imaging biomarkers | |
| 650 | 4 | |a radiomics | |
| 650 | 4 | |a splenic involvement | |
| 650 | 4 | |a subtype classification | |
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