Biomedical Engineering
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Recent papers in Biomedical Engineering
Pulse sequences which permit imaging and volume‐selective determination of parameters characterizing the frequency dependence of the spin‐lattice relaxation time in the rotating frame, T1ρ are presented. The contrasts are due to slowly... more
Background:We compared the effectiveness of stretching and strengthening exercises combined with myofascial releasing and mobilization techniques to a stretching and strengthening only home program in plantar fasciitis (PF)... more
We performed intra-articular reconstruction of the anterior cruciate ligament (ACL) with the semitendinosus tendon placed in 2 mm diameter tunnels in 21 skeletally immature rabbits. The operation caused 11% damage to the physis of the... more
Application of umbilical cord blood (UCB) transplantation in adults as a treatment post‐chemotherapy is hampered due to delayed platelet recovery. A potential solution suggested is the transfusion of ex vivo expanded megakaryocytes (Mks)... more
A bio-scaffold can be broadly termed as a structure used to substitute an organ either permanently or temporarily to restore functionality. The material that can be used varies with the application intended. Tissue engineering is one such... more
Cerebral palsy (CP) is a group of nonprogressive neuro-developmental conditions occurring in early childhood that causes movement disorders and physical disability. Measuring activity levels and gait patterns is an important aspect of CP... more
PurposeThe purpose of this study is to safely acquire the first human head images at 10.5T.MethodsTo ensure safety of subjects, we validated the electromagnetic simulation model of our coil. We obtained quantitative agreement between... more
PurposeTo investigate the feasibility of imaging the human torso and to evaluate the performance of several radiofrequency (RF) management strategies at 10.5T.MethodsHealthy volunteers were imaged on a 10.5T whole‐body scanner in multiple... more
PurposeDespite the clear synergy between high channel counts in a receive array and magnetic fields ≥ 7 Tesla, to date such systems have been restricted to a maximum of 32 channels. Here, we examine SNR gains at 7 Tesla in unaccelerated... more
To validate electromagnetic and thermal simulations with in vivo temperature measurements, and to demonstrate a framework that can be used to predict temperature increase caused by radiofrequency (RF) excitation with dipole transmitter... more
PurposeIn this work, we investigated the relative effects of static magnetic field exposure (10.5 Tesla [T]) on two physiological parameters; blood pressure (BP) and heart rate (HR).MethodsIn vivo, we recorded both BP and HR in 4 swine (3... more
To explore the potential of performing body imaging at 10.5 Tesla (T) compared with 7.0T through evaluating the transmit/receive performance of similarly configured dipole antenna arrays. Fractionated dipole antenna elements for 10.5T... more
Complete rupture of the anterior cruciate ligament (ACL) is a common problem in orthopedics. At present, there are many techniques to reconstruct ligaments, which include the use of autografts, allografts, and, in some cases, artificial... more
2008 George Papaioannou / Vasilios.C. Protopappas / Tsopelas Panagiotis / Christos Mitrogiannis / George Nianios / Scott Tashman A NEW METHOD FOR PRESSURE SENSOR EQUILLIBRATION AND CONDITIONING Brazilian Journal of Biomotricity, setembro,... more
The purpose of this study was to identify the effects that X-ray source misalignment has on common measurements made from anterior-poster (AP) and medial-lateral (ML) view foot radiographs. A cadaveric foot model was used to obtain ML... more
ABSTRACTThis study explored three dimensional (3D) talonavicular joint (TNJ) coverage/orientation and bone morphology to reveal parameters that could classify and identify predispositions to cavus and planus feet. 3D models of 65 feet... more
In transplantation surgery, extending the criteria for organ donation to include organs that may have otherwise been previously discarded has provided the impetus to improve organ preservation. The traditional method of cold static... more