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Shadpour Demehri
Researcher at Johns Hopkins University
Publications - 123
Citations - 2040
Shadpour Demehri is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Medicine & Osteoarthritis. The author has an hindex of 22, co-authored 93 publications receiving 1180 citations. Previous affiliations of Shadpour Demehri include Johns Hopkins University School of Medicine & Siemens.
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Journal ArticleDOI
Flexible Adult Acquired Flatfoot Deformity: Comparison Between Weight-Bearing and Non-Weight-Bearing Measurements Using Cone-Beam Computed Tomography.
Cesar de Cesar Netto,Lew C. Schon,Gaurav K. Thawait,Lucas Furtado da Fonseca,Apisan Chinanuvathana,Apisan Chinanuvathana,Wojciech Zbijewski,Jeffrey H. Siewerdsen,Shadpour Demehri +8 more
TL;DR: WB images better demonstrated the severity of osseous derangement in patients with flexible adult acquired flatfoot deformity, and are obtainable using high-resolution cone-beam CT.
Journal ArticleDOI
Compressed Sensing SEMAC: 8-fold Accelerated High Resolution Metal Artifact Reduction MRI of Cobalt-Chromium Knee Arthroplasty Implants.
Jan Fritz,Shivani Ahlawat,Shadpour Demehri,Gaurav K. Thawait,Esther Raithel,Wesley D. Gilson,Mathias Nittka +6 more
TL;DR: The hypothesis that prospective compressed sensing acceleration of SEMAC is feasible for high-quality metal artifact reduction MRI of cobalt-chromium knee arthroplasty implants in less than 5 minutes and yields better quality than high-BW TSE and similarly high quality than lengthier SEMAC pulse sequences is accepted.
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Angiogenesis stimulated by elevated PDGF-BB in subchondral bone contributes to osteoarthritis development
Weiping Su,Guanqiao Liu,Guanqiao Liu,Xiaonan Liu,Xiaonan Liu,Yangying Zhou,Qi Sun,Qi Sun,Gehua Zhen,Xiao Wang,Yihe Hu,Peisong Gao,Shadpour Demehri,Xu Cao,Mei Wan +14 more
TL;DR: This study provides the first evidence that PDGF-BB derived from preosteoclasts is a key driver of pathological subchondral bone angiogenesis during osteoarthritis development and offers a new avenue for developing early treatments for this disease.
Journal ArticleDOI
Axial and reformatted four-chamber right ventricle-to-left ventricle diameter ratios on pulmonary CT angiography as predictors of death after acute pulmonary embolism
Michael T. Lu,Shadpour Demehri,Tianxi Cai,Layla Parast,Andetta R. Hunsaker,Samuel Z. Goldhaber,Frank J. Rybicki +6 more
TL;DR: The axial RV/LV diameter ratio is no less accurate than the reformatted four-chamber RV/ LV diameter ratio for predicting 30-day mortality after PE and there was no significant difference in overall accuracy for predicting all-cause and PE-related mortality.
Journal ArticleDOI
Assessment of image quality in soft tissue and bone visualization tasks for a dedicated extremity cone-beam CT system.
Shadpour Demehri,Abdullah Al Muhit,Wojciech Zbijewski,Joseph Webster Stayman,J. Yorkston,Nathan J. Packard,Robert A. Senn,Dong Yang,David H. Foos,Gaurav K. Thawait,Laura M. Fayad,Avneesh Chhabra,John A. Carrino,Jeffrey H. Siewerdsen +13 more
TL;DR: CBCT provided excellent image quality for bone visualization and adequate imagequality for soft tissue visualization tasks in extremity imaging.