UNLABELLED This article demonstrates resolution recovery in 18F SPECT image reconstruction by using an iterative algorithm that corrects for the system geometric response. METHODS Patient and phantom studies were performed using a Picker PRISM 3000 three-detector SPECT system (Picker International, Inc., Cleveland, OH) to image 18F with 511 keV collimators. A measured point response function ...

Introduction Contrast-enhanced dynamic MR angiography (CE-dMRA) has received considerable attention recently owing to its ability to provide temporal information in addition to the otherwise "static" high-resolution 3-D contrast-enhanced MRA for a variety of clinical indications [1]. While the spatial resolution can reach millimeter and sub-millimeter level, the temporal resolution in CE-dMRA i...

Responding to D. E. Balk (2004) about use of the term recovery to describe bereavement outcome, the authors take the view that this term is inadequate. Among the points raised are (a) the term recovery may imply a response to psychological disorder, whereas bereavement responses are generally normative; (b) recovery does not easily allow for transformative outcomes in bereavement, e.g., posttra...

BACKGROUND Previous research estimates that the majority of athletes with sport-related concussion (SRC) will recover between 7 and 10 days after injury. This short temporal window of recovery is based predominately on symptom resolution and cognitive improvement and does not accurately reflect recent advances in the clinical assessment model. OBJECTIVE To characterize SRC recovery at 1-week ...

objective: various approaches have been offered for resolution of pain resulting from spinal cord injuries. one approach is the use of herbal and natural products. in the present research, as a preliminary study, we investigate the effect of crocin on chronic pain induced by contusion in the rat spinal cord (sci). methods: we randomly divided female wistar rats into five groups. groups i and ii...

objective: to evaluate the current scientific evidence for the applicability, safety and effectiveness of pathways of enhanced recovery after emergency surgery (eras). methods: we undertook a search using pubmed and cochrane databases for eras protocols in emergency cases. the search generated 65 titles; after eliminating the papers not meeting search criteria, we selected 4 cohort studies and ...

Understanding the impacts of extreme drought on forest productivity requires a comprehensive assessment tree and resilience. However, current approaches to quantifying resilience limit our understanding response dynamics, recovery trajectories legacies by constraining temporal scale resolution assessment. We compared individual growth histories with forecasted using dynamic regression at an ann...