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- Lubberink, Mark, et al.
(författare)
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Validity of Simplified 3′-Deoxy-3′-[18F]Fluorothymidine Uptake Measures for Monitoring Response to Chemotherapy in Locally Advanced Breast Cancer
- 2012
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Ingår i: Molecular Imaging and Biology. - : Springer Science and Business Media LLC. - 1536-1632 .- 1860-2002. ; 14:6, s. 777-782
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Tidskriftsartikel (refereegranskat)abstract
- Purpose:Positron emission tomography using 3′-deoxy-3′-[18F]fluorothymidine ([18F]FLT) has been suggested as a means for monitoring response to chemotherapy. The aim of this study was to evaluate the validity of simplified uptake measures for assessing response to chemotherapy using [18F]FLT in locally advanced breast cancer (LABC).Procedures:Fifteen LABC patients underwent dynamic [18F]FLT scans both prior to and after the first cycle of chemotherapy with fluorouracil, epirubicin or doxorubicin, and cyclophosphamide. The net uptake rate constant of [18F]FLT, K i , determined by non-linear regression (NLR) of an irreversible two-tissue compartment model was used as the gold standard. In addition to Patlak graphical analysis, standardised uptake values (SUV) and tumour-to-whole blood ratio (TBR) were used for analysing [18F]FLT data. Correlations and relationships between simplified uptake measures and NLR before and after chemotherapy were assessed using regression analysis.Results: No significant differences in both pre- and post-chemotherapy relationships between any of the simplified uptake measures and NLR were found. However, changes in SUV between baseline and post-therapy scans showed a significant negative bias and slope less than one, while TBR did not.Conclusions:In LABC, TBR instead of SUV may be preferred for monitoring response to chemotherapy with [18F]FLT.
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- Salazar, Ramon, et al.
(författare)
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Comparison of ColoPrint risk classification with clinical risk in the prospective PARSC trial
- 2014
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Ingår i: Journal of Clinical Oncology. - Inst Catala Oncol, Early Clin Res Unit, Lhospitalet Barcelona, Spain. Vall dHebron Univ Hosp, Barcelona, Spain. Kantonsspital Baden, Dept Surg, Baden, Switzerland. Akad Univ Hosp, Uppsala, Sweden. Westfries Gasthuis, Hoorn, Netherlands. Inst Canc Montpelier, Dept Pathol, Montpellier, France. Med Spectrum Twente, Enschede, Netherlands. Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA. Med Ctr Alkmaar, Alkmaar, Netherlands. Med Univ Vienna, Vienna, Austria. Univ Oxford, Dept Oncol, Oxford, England. Wake Forest Univ, Bowman Gray Sch Med, Winston Salem, NC USA. Matsuda Hosp, Hamamatsu, Shizuoka, Japan. Acad Teaching Hosp, Linz, Austria. South Orange Cty Surg Med Grp, Laguna Hills, CA USA. Norfolk & Norwich Univ Hosp NHS FT, Norwich, Norfolk, England. Univ Hong Kong, Queen Mary Hosp, Hong Kong, Hong Kong, Peoples R China. Long Beach Mem Med Ctr, Long Beach, CA USA. Agendia, Amsterdam, Netherlands. Georgetown Univ, Lombardi Comprehens Canc Ctr, Washington, DC USA.. - 0732-183X .- 1527-7755. ; 32:15
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Tidskriftsartikel (refereegranskat)
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- Sciarretta, A., et al.
(författare)
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A control benchmark on the energy management of a plug-in hybrid electric vehicle
- 2014
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Ingår i: Control Engineering Practice. - : Pergamon Press. - 0967-0661 .- 1873-6939. ; 29, s. 287-298
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Tidskriftsartikel (refereegranskat)abstract
- A benchmark control problem was developed for a special session of the IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling (E-COSM 12), held in Rueil-Malmaison, France, in October 2012. The online energy management of a plug-in hybrid-electric vehicle was to be developed by the benchmark participants. The simulator, provided by the benchmark organizers, implements a model of the GM Voltec powertrain. Each solution was evaluated according to several metrics, comprising of energy and fuel economy on two driving profiles unknown to the participants, acceleration and braking performance, computational performance. The nine solutions received are analyzed in terms of the control technique adopted (heuristic rule-based energy management vs. equivalent consumption minimization strategies, ECMS), battery discharge strategy (charge depleting-charge sustaining vs. blended mode), ECMS implementation (vector-based vs. map-based), ways to improve the implementation and improve the computational performance. The solution having achieved the best combined score is compared with a global optimal solution calculated offline using the Pontryagins minimum principle-derived optimization tool HOT.
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- Topjian, Alexis A., et al.
(författare)
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Brain Resuscitation in the Drowning Victim
- 2012
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Ingår i: Neurocritical Care. - : Springer Science and Business Media LLC. - 1541-6933 .- 1556-0961. ; 17:3, s. 441-467
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Tidskriftsartikel (refereegranskat)abstract
- Drowning is a leading cause of accidental death. Survivors may sustain severe neurologic morbidity. There is negligible research specific to brain injury in drowning making current clinical management non-specific to this disorder. This review represents an evidence-based consensus effort to provide recommendations for management and investigation of the drowning victim. Epidemiology, brain-oriented prehospital and intensive care, therapeutic hypothermia, neuroimaging/monitoring, biomarkers, and neuroresuscitative pharmacology are addressed. When cardiac arrest is present, chest compressions with rescue breathing are recommended due to the asphyxial insult. In the comatose patient with restoration of spontaneous circulation, hypoxemia and hyperoxemia should be avoided, hyperthermia treated, and induced hypothermia (32-34 A degrees C) considered. Arterial hypotension/hypertension should be recognized and treated. Prevent hypoglycemia and treat hyperglycemia. Treat clinical seizures and consider treating non-convulsive status epilepticus. Serial neurologic examinations should be provided. Brain imaging and serial biomarker measurement may aid prognostication. Continuous electroencephalography and N20 somatosensory evoked potential monitoring may be considered. Serial biomarker measurement (e.g., neuron specific enolase) may aid prognostication. There is insufficient evidence to recommend use of any specific brain-oriented neuroresuscitative pharmacologic therapy other than that required to restore and maintain normal physiology. Following initial stabilization, victims should be transferred to centers with expertise in age-specific post-resuscitation neurocritical care. Care should be documented, reviewed, and quality improvement assessment performed. Preclinical research should focus on models of asphyxial cardiac arrest. Clinical research should focus on improved cardiopulmonary resuscitation, re-oxygenation/reperfusion strategies, therapeutic hypothermia, neuroprotection, neurorehabilitation, and consideration of drowning in advances made in treatment of other central nervous system disorders.
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