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| Hauptseite > Publikationsdatenbank > Automated Brain Tumor Detection and Segmentation for Treatment Response Assessment Using Amino Acid PET. > print |
| Hauptseite > Publikationsdatenbank > Automated Brain Tumor Detection and Segmentation for Treatment Response Assessment Using Amino Acid PET. > print |
| 001 | 1010425 | ||
| 005 | 20240408211952.0 | ||
| 024 | 7 | _ | |a pmid:37562802 |2 pmid |
| 024 | 7 | _ | |a 0097-9058 |2 ISSN |
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| 024 | 7 | _ | |a 0161-5505 |2 ISSN |
| 024 | 7 | _ | |a 1535-5667 |2 ISSN |
| 024 | 7 | _ | |a 2159-662X |2 ISSN |
| 024 | 7 | _ | |a 10.2967/jnumed.123.265725 |2 doi |
| 037 | _ | _ | |a FZJ-2023-03049 |
| 041 | _ | _ | |a English |
| 082 | _ | _ | |a 610 |
| 100 | 1 | _ | |a Gutsche, Robin |0 P:(DE-Juel1)181076 |b 0 |
| 245 | _ | _ | |a Automated Brain Tumor Detection and Segmentation for Treatment Response Assessment Using Amino Acid PET. |
| 260 | _ | _ | |a New York, NY |c 2023 |b Soc. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Evaluation of metabolic tumor volume (MTV) changes using amino acid PET has become an important tool for response assessment in brain tumor patients. MTV is usually determined by manual or semiautomatic delineation, which is laborious and may be prone to intra- and interobserver variability. The goal of our study was to develop a method for automated MTV segmentation and to evaluate its performance for response assessment in patients with gliomas. Methods: In total, 699 amino acid PET scans using the tracer O-(2-[18F]fluoroethyl)-l-tyrosine (18F-FET) from 555 brain tumor patients at initial diagnosis or during follow-up were retrospectively evaluated (mainly glioma patients, 76%). 18F-FET PET MTVs were segmented semiautomatically by experienced readers. An artificial neural network (no new U-Net) was configured on 476 scans from 399 patients, and the network performance was evaluated on a test dataset including 223 scans from 156 patients. Surface and volumetric Dice similarity coefficients (DSCs) were used to evaluate segmentation quality. Finally, the network was applied to a recently published 18F-FET PET study on response assessment in glioblastoma patients treated with adjuvant temozolomide chemotherapy for a fully automated response assessment in comparison to an experienced physician. Results: In the test dataset, 92% of lesions with increased uptake (n = 189) and 85% of lesions with iso- or hypometabolic uptake (n = 33) were correctly identified (F1 score, 92%). Single lesions with a contiguous uptake had the highest DSC, followed by lesions with heterogeneous, noncontiguous uptake and multifocal lesions (surface DSC: 0.96, 0.93, and 0.81 respectively; volume DSC: 0.83, 0.77, and 0.67, respectively). Change in MTV, as detected by the automated segmentation, was a significant determinant of disease-free and overall survival, in agreement with the physician's assessment. Conclusion: Our deep learning-based 18F-FET PET segmentation allows reliable, robust, and fully automated evaluation of MTV in brain tumor patients and demonstrates clinical value for automated response assessment. |
| 536 | _ | _ | |a 5253 - Neuroimaging (POF4-525) |0 G:(DE-HGF)POF4-5253 |c POF4-525 |f POF IV |x 0 |
| 536 | _ | _ | |a DFG project 428090865 - Radiomics basierend auf MRT und Aminosäure PET in der Neuroonkologie (428090865) |0 G:(GEPRIS)428090865 |c 428090865 |x 1 |
| 536 | _ | _ | |a DFG project 491111487 - Open-Access-Publikationskosten / 2022 - 2024 / Forschungszentrum Jülich (OAPKFZJ) (491111487) |0 G:(GEPRIS)491111487 |c 491111487 |x 2 |
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| 650 | _ | 7 | |a AI |2 Other |
| 650 | _ | 7 | |a FET PET |2 Other |
| 650 | _ | 7 | |a artificial intelligence |2 Other |
| 650 | _ | 7 | |a machine learning |2 Other |
| 650 | _ | 7 | |a neurooncology |2 Other |
| 650 | _ | 7 | |a volumetry |2 Other |
| 700 | 1 | _ | |a Lowis, Carsten |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Ziemons, Karl |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Kocher, Martin |0 P:(DE-Juel1)173675 |b 3 |
| 700 | 1 | _ | |a Ceccon, Garry |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Brambilla, Cláudia Régio |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Shah, Nadim J |0 P:(DE-Juel1)131794 |b 6 |
| 700 | 1 | _ | |a Langen, Karl-Josef |0 P:(DE-Juel1)131777 |b 7 |
| 700 | 1 | _ | |a Galldiks, Norbert |0 P:(DE-Juel1)143792 |b 8 |
| 700 | 1 | _ | |a Isensee, Fabian |0 P:(DE-HGF)0 |b 9 |
| 700 | 1 | _ | |a Lohmann, Philipp |0 P:(DE-Juel1)145110 |b 10 |e Corresponding author |
| 773 | _ | _ | |a 10.2967/jnumed.123.265725 |g Vol. 64, no. 10, p. 1594 - 1602 |0 PERI:(DE-600)2040222-3 |n 10 |p - |t Journal of nuclear medicine |v 64 |y 2023 |x 0097-9058 |
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