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Comparison of MRI-based and PET-based image pre-processing for quantification of 11C-PBB3 uptake in human brain
https://repo.qst.go.jp/records/85380
https://repo.qst.go.jp/records/85380e5bda66d-4e23-4cab-a677-df45c4415c96
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-12-28 | |||||
| タイトル | ||||||
| タイトル | Comparison of MRI-based and PET-based image pre-processing for quantification of 11C-PBB3 uptake in human brain | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Elham, Yousefzadeh-Nowshahr
× Elham, Yousefzadeh-Nowshahr× Winter, Gordon× Bohn, Peter× Kneer, Katharina× A.F. von Arnim, Christine× Otto, Markus× Solbach, Christoph× Sarah, Anderl-Straub× Dörte, Polivka× Fissler, Patrick× Prasad, Vikas× Kletting, Peter× W. Riepe, Matthias× Makoto, Higuchi× Ludolph, Albert× J. Beer, Ambros× Glatting, Gerhard× Makoto, Higuchi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose Quantification of tau load using 11C-PBB3-PET has the potential to improve diagnosis of neurodegenerative diseases. Although MRI-based pre-processing is used as a reference method, not all patients have MRI. The feasibility of a PET-based pre-processing for the quantification of 11C-PBB3 tracer was evaluated and compared with the MRI-based method. Materials and methods Fourteen patients with decreased recent memory were examined with 11C-PBB3-PET and MRI. The PET scans were visually assessed and rated as either PBB3(+) or PBB3(−). The image processing based on the PET-based method was validated against the MRI-based approach. The regional uptakes were quantified using the Mesial-temporal/Temporoparietal/Rest of neocortex (MeTeR) regions. SUVR values were calculated by normalizing to the cerebellar reference region to compare both methods within the patient groups. Results Significant correlations were observed between the SUVRs of the MRI-based and the PET-based methods in the MeTeR regions (rMe = 0.91; rTe = 0.98; rR = 0.96; p < 0.0001). However, the Bland–Altman plot showed a significant bias between both methods in the subcortical Me region (bias: −0.041; 95% CI: −0.061 to −0.024; p = 0.003). As in the MRI-based method, the 11C-PBB3 uptake obtained with the PET-based method was higher for the PBB3(+) group in each of the cortical regions and for the whole brain than for the PBB3(−) group (PET-basedGlobal: 1.11 vs. 0.96; Cliff's Delta (d) = 0.68; p = 0.04; MRI-basedGlobal: 1.11 vs. 0.97; d = 0.70; p = 0.03). To differentiate between positive and negative scans, Youden's index estimated the best cut-off of 0.99 from the ROC curve with good accuracy (AUC: 0.88 ± 0.10; 95% CI: 0.67–1.00) and the same sensitivity (83%) and specificity (88%) for both methods. Conclusion The PET-based pre-processing method developed to quantify the tau burden with 11C-PBB3 provided comparable SUVR values and effect sizes as the MRI-based reference method. Furthermore, both methods have a comparable discrimination accuracy between PBB3(+) and PBB3(−) groups as assessed by visual rating. Therefore, the presented PET-based method can be used for clinical diagnosis if no MRI image is available. |
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| 書誌情報 |
Zeitschrift für Medizinische Physik 巻 31, 号 1, p. 37-47, 発行日 2021-01 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0939-3889 | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 33454153 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.zemedi.2020.12.002 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0939388920301318?via%3Dihub | |||||
