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Scott David Wollenweber
Researcher at GE Healthcare
Publications - 108
Citations - 1966
Scott David Wollenweber is an academic researcher from GE Healthcare. The author has contributed to research in topics: Imaging phantom & Positron emission tomography. The author has an hindex of 22, co-authored 106 publications receiving 1794 citations. Previous affiliations of Scott David Wollenweber include University of North Carolina at Chapel Hill & General Electric.
Papers
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Journal ArticleDOI
PET/MR imaging of bone lesions – implications for PET quantification from imperfect attenuation correction
Andrei Samarin,Cyrill Burger,Scott David Wollenweber,David W. Crook,Irene A. Burger,Daniel T. Schmid,Gustav K. von Schulthess,Felix P. Kuhn +7 more
TL;DR: CT data simulating treating bone as soft tissue as is currently done in MR maps for PET AC leads to a substantial underestimation of tracer uptake in bone lesions and depends on lesion composition, the largest error being seen in sclerotic lesions.
Journal ArticleDOI
Quantitative comparison of OSEM and penalized likelihood image reconstruction using relative difference penalties for clinical PET.
Sangtae Ahn,Steven G. Ross,Evren Asma,Jun Miao,Xiao Jin,Lishui Cheng,Scott David Wollenweber,Ravindra Mohan Manjeshwar +7 more
TL;DR: Improvements of PL in lesion quantitation accuracy compared to OSEM are demonstrated with a particular improvement in cold background regions such as lungs.
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Quiescent period respiratory gating for PET/CT.
Chi Liu,Adam M. Alessio,Larry Pierce,Kris Thielemans,Scott David Wollenweber,Alexander Ganin,Paul E. Kinahan +6 more
TL;DR: The quiescent period gating methods for respiratory motion compensation could effectively improve tumor quantification with minimal noise increase.
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Comparison of 4-class and continuous fat/water methods for whole-body, MR-based PET attenuation correction
Scott David Wollenweber,Sonal Ambwani,Albert Henry Roger Lonn,Dattesh Dayanand Shanbhag,Sheshadri Thiruvenkadam,Sandeep Kaushik,Rakesh Mullick,Florian Wiesinger,Hua Qian,Gaspar Delso +9 more
TL;DR: It is demonstrated that both 4class and continuousFat/water AC methods provided adequate quantitation in the body, and that the continuous fat/water method was within 5.7% on average for SUV mean in liver and 1.6% onaverage for SUV max for FDG-avid features.
Journal ArticleDOI
Evaluation of an atlas-based PET head attenuation correction using PET/CT & MR patient data
Scott David Wollenweber,Sonal Ambwani,Gaspar Delso,Albert Henry Roger Lonn,Rakesh Mullick,Florian Wiesinger,Z. Piti,A. Tari,G. Novak,M. Fidrich +9 more
TL;DR: PET image visualization demonstrated spatial variations in activity concentration accuracy induced by the AC methods that were consistent with the approximations in each method, demonstrating that the atlas-based AC in the head provides adequate PET quantitation and image quality as compared to methods that do not account for bone.