التفاصيل البيبلوغرافية
| العنوان: |
Assessment of Image Quality and Lesion Detectability With Digital PET/CT System |
| المؤلفون: |
Olivier Delcroix, David Bourhis, Nathalie Keromnes, Philippe Robin, Pierre-Yves Le Roux, Ronan Abgral, Pierre-Yves Salaun, Solène Querellou |
| المصدر: |
Frontiers in Medicine, Vol 8 (2021) |
| بيانات النشر: |
Frontiers Media S.A., 2021. |
| سنة النشر: |
2021 |
| المجموعة: |
LCC:Medicine (General) |
| مصطلحات موضوعية: |
analog detectors, PET/CT, clinical evaluation, image quality, SiPM, Medicine (General), R5-920 |
| الوصف: |
Purpose: The aim of this study was to assess image quality and lesion detectability acquired with a digital Positron Emission Tomography/Computed Tomography (PET/CT) Siemens Biograph Vision 600 system.Material and Methods: Consecutive patients who underwent a FDG PET/CT during the first week of use of a digital PET/CT (Siemens Biograph Vision 600) at the nuclear medicine department of the university hospital of Brest were analyzed. PET were realized using list mode acquisition. For all patients, 4 datasets were reconstructed. We determined, according to phantom measurements, an equivalent time acquisition/reconstruction parameters pair of the digital PET/CT corresponding to an analog PET/CT image quality (“analog-like”) as reference dataset. We compared the reference dataset with 3 others digital PET/CT reconstruction parameters, allowing a decrease of emission duration: 60, 90, and 120 s per bed position. Three nuclear medicine physicians evaluated independently, for each dataset, overall image quality [Maximal Intensity Projection (MIP), noise, sharpness] using a 4-point scale. Physicians assessed also lesion detection capability by reporting new visible lesions on each digital datasets with their confidence level in comparison with analog-like dataset.Results: Ninety-eight patients were analyzed. Image quality of MIP (IQMIP), sharpness (IQSHARPNESS), and noise (IQNOISE) of all digital datasets (60, 90, and 120 s) were better than those evaluated with analog-like reconstruction. Moreover, digital PET/CT system improved IQMIP, IQNOISE, and IQSHARPNESS whatever the BMI. Lesion detection capability and confidence level were higher for 60, 90, 120 s per bed position, respectively, than for analog-like images.Conclusion: Our study demonstrated an improvement of image quality and lesion detectability with a digital PET/CT system. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2296-858X |
| Relation: |
https://www.frontiersin.org/articles/10.3389/fmed.2021.629096/full; https://doaj.org/toc/2296-858X |
| DOI: |
10.3389/fmed.2021.629096 |
| URL الوصول: |
https://doaj.org/article/9eecbc6457494c138090777326711759 |
| رقم الانضمام: |
edsdoj.9eecbc6457494c138090777326711759 |
| قاعدة البيانات: |
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