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Topic: Perfusion

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	E-Journal of Perfusion Technology
		Perfusion of both carotids may be necessary only in patients with a compromised circle of Willis or severe carotid artery stenosis.
		The perfusion to the BT-Shunt was stopped and the whole body was perfused with 2,8 l/m2/min by the arterial cannula in the neoaorta.
		During antegrade cerebral perfusion the subaortic vessels and the descending aorta have to be occluded to avoid return of blood into the operative field.
	perfline.com /ejournal/2002/ca0202.html (2163 words)

	Perfusion -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-21)
		Perfusion is a physiological term that refers to the process of nutritive delivery of arterial blood to a (Any of the minute blood vessels connecting arterioles with venules) capillary bed in the (Click link for more info and facts about biological tissue) biological tissue.
		Two main categories of functional magnetic resonance imaging ((The use of nuclear magnetic resonance of protons to produce proton density images) MRI) techniques can be used to measure tissue perfusion (Click link for more info and facts about in vivo) in vivo.
		The other category is based on arterial spin labeling (ASL) where arterial blood is magnetically tagged before it enters into the tissue of interest and the amount of labeling is measured and compared to a control recording obtained without spin labeling.
	www.absoluteastronomy.com /encyclopedia/p/pe/perfusion.htm (157 words)

	Encyclopedia of Nursing and Allied Health: Lung perfusion and ventilation scan (Site not responding. Last check: 2007-10-21)
		A perfusion scan alone or both tests are frequently performed for patients with a suspected pulmonary embolism (blood clot in the lung) or for follow-up in patients with known pulmonary embolism.
		For a lung perfusion scan, the patient is injected intravenously with radioactive particles, known as Tc 99m MAA (macroaggregated albumin).
		For the lung perfusion scan, diminished or absent perfusion suggests decreased blood flow to that part of the lung, and possibly a pulmonary embolism.
	www.findarticles.com /p/articles/mi_gGENH/is_/ai_2699003466 (823 words)

	Pulmonary ventilation/perfusion scan
		A pulmonary ventilation/perfusion scan is a pair of nuclear scan tests that use inhaled and injected radioactive material (radioisotopes) to measure breathing (ventilation) and circulation (perfusion) in all areas of the lungs.
		A ventilation and perfusion scan is most often performed to detect a pulmonary embolus.
		A pulmonary ventilation and perfusion scan may be a lower-risk alternative to pulmonary angiography for evaluating disorders of the lung blood supply.
	www.pennhealth.com /ency/article/003828.htm (814 words)

	Perfusion CT with Iodinated Contrast Material -- Eastwood et al. 180 (1): 3 -- American Journal of Roentgenology
		Perfusion CT of the brain: diagnostic approach for early detection of ischemic stroke.
		Dynamic CT perfusion imaging with acetazolamide challenge for the preprocedural assessment of a patient with symptomatic middle cerebral artery occlusive disease.
		Klotz E, Konig M. Perfusion measurements of the brain: using dynamic CT for the quantitative assessment of cerebral ischemia in acute stroke.
	www.ajronline.org /cgi/content/full/180/1/3 (6134 words)

	Perfusion Magnetic Resonance Imaging to Assess Brain Tumor Responses to New Therapies (Site not responding. Last check: 2007-10-21)
		Conclusions: Perfusion MRI not only may be as effective as radionuclide-based techniques in sensitivity and specificity in assessing brain tumor responses to new therapies, but also may offer higher resolution and convenient co-registration with conventional MRI, as well as time- and cost-effectiveness.
		In rCBV perfusion imaging, the T2 (or T2*) MRI signal drop within or across a brain region is caused by spin dephasing from susceptibility effects during rapid passage of a paramagnetic contrast agent (eg, gadolinium) through the capillary bed.
		Perfusion MRI techniques are likely to be at least as sensitive and specific as radionuclide-based techniques, and they offer the added advantages of higher intrinsic resolution, convenient co-registration with conventional MRI, and time- and cost-effective imaging in a patient population that already receives frequent follow-up conventional MRI studies.
	www.moffitt.usf.edu /pubs/ccj/v5n2/article2.html (4893 words)

	Texas Heart Institute School of Perfusion Technology
		Perfusion technologists set up and operate the heart-lung machine and other sophisticated equipment used in the operating room.
		In addition, "perfusionists," directed by the surgeon and anesthesiologist, are responsible for regulating the patient's levels of oxygen and carbon dioxide; for measuring selected laboratory values such as blood cell count; and for monitoring circulation.
		Although perfusion technologists usually work in hospitals affiliated with large medical centers, they may also work in educational institutions as teachers or researchers.
	www.tmc.edu /thi/perfusio.html (450 words)

	American Board of Cardiovascular Perfusion
		Both the Perfusion Basic Science Examination and the Clinical Applications in Perfusion Examination are given twice a year, in the spring and in the fall.
		Applicants retaking the Perfusion Basic Science Examination are NOT required to resubmit or arrange for resubmission of items 1-3, the Clinical Education Record, the official transcript, and the Clinical Competency statement.
		The American Board of Cardiovascular Perfusion recognizes the Accreditation Committee for Perfusion Education (AC-PE) in cooperation with the Commission on Accreditation of Allied Health Education Programs (CAAHEP), and the Conjoint Committee on Accreditation of the Canadian Medical Association (CMA) as the official accrediting agencies for perfusion education programs.
	www.abcp.org /certification.htm (1386 words)

	► Pulmonary ventilation/perfusion scan (Site not responding. Last check: 2007-10-21)
		A nuclear scan test using inhaled and injected radioactive material (radioisotopes) to measure breathing (ventilation) and circulation (perfusion) in all areas of the lungs.
		The perfusion scan is performed by injecting radioactive albumin (99m Tc macroaggregated albumin) into a vein.
		There may be a sharp prick during injection of material into the vein for the perfusion portion of the scan.
	www.umm.edu /ency/article/003828.htm (496 words)

	Perfusion Instructions
		Sufficient perfusion pressure is obtained with the bottles 80-100 cm above the animal (but no more!).
		Release the hose clamp on the perfusion tube so that the fluid is just barely passing out of the cannula tip.
		Consider the perfusion a dialysis process, exchanging formaldehyde and water, rather than a ‘flushing’ process.
	www.neuroscienceassociates.com /perf-protocol.htm (593 words)

	Myocardial Perfusion (Site not responding. Last check: 2007-10-21)
		The basic principle using these tracers for the study of myocardial perfusion is that when injected intravenously, they are trapped in the myocardium in proportion to the regional blood flow.
		A perfusion abnormality that is present on both the stress and rest studies represents scar while a perfusion abnormality that is present only in stress study represents ischemia.
		This combination of perfusion and function assessment is unique to nuclear techniques and is a powerful tool for risk stratification.
	webcampus.med.drexel.edu /cme/medicine/ncardiac/perf.htm (765 words)

	Perfusion Line
		The VTECT is a peer reviewed, electronic source of information freely available to the international perfusion community.
		Perfusion News is a selected collection of the most recent reports and publications.
		See what's new on cardiovascular perfusion and related disciplines.
	perfline.com (144 words)

	Miniature Perfusion Systems. Complete computerized and automated system for fast, local or bath perfusion. Single ...
		Consider adding a syringe holder and a perfusion chamber, vacuum pump, and water trap for a complete system.
		This system can be used for fast focal and intracellular perfusion, as well as to change solution in the bath around your sample.
		Four channels of the perfusion system are used to change solutions inside the bath and for washout, and other four are used for single cell superfusion through micro-manifold (choose tip size from 100, 250 or 360 micron).
	biosciencetools.com /catalog/perfusionMini.htm (1139 words)

	Cambridge Perfusion Services LLP - Suppliers of Clinical Perfusion Services & Accredited Locum Perfusionists, ...
		Based at Papworth Hospital, Cambridgeshire, Cambridge Perfusion Services is the oldest and largest medical perfusion company in the United Kingdom that can supply clinical, technical and disposable services relating to clinical perfusion.
		Cambridge Perfusion Services has major contracts within the private and public sector supplying perfusion related and perfusion services amounting to approximately 3000 cases per year.
		Cambridge perfusion services have experience in practically all perfusion-related disciplines from routine coronary artery surgery to paediatric E.C.M.O. In conjunction with technical, medical and nursing staff the company actively supports on-going training and research programmes and strives to make it one of the most up-to date and forward thinking clinical perfusion companies in Europe.
	cambridgeperfusionservices.co.uk (166 words)

	The Christ Hospital School of Perfusion Science in the Health Alliance of Greater Cincinnati (Site not responding. Last check: 2007-10-21)
		A Perfusionist is a medical professional trained in the operation of heart-lung machines to assist open-heart surgical teams divert blood away from the core circulatory organs during the procedure, to be artificially cleansed and oxigenated.
		The perfusionist must constantly monitor both the heart-lung machine and the patient, and must be competently trained to communicate with the surgeon and anesthesiologist to effectively coordinate the operation.
		Many hospitals also require the student of perfusion science to support other medical technical specialists in pre-op and post-op procedures dealing with circulation and the blood.
	www.health-alliance.com /perfusion (104 words)

	Virtual Hospital: ElectricPE: The Diagnosis of Pulmonary Embolism: Ventilation Perfusion Scanning (Site not responding. Last check: 2007-10-21)
		A normal perfusion scan is characterized by even distribution of radiotracer throughout both lungs.
		A high probability ventilation perfusion scan is represented by multiple segmental or larger defects with normal ventilation in at least one area of abnormal perfusion.
		The differential diagnosis for a ventilation perfusion mismatch includes acute pulmonary embolus, previous pulmonary embolus, congenital vascular abnormalities, vasculitis, bronchogenic carcinoma, lymphangitic carcinomatosis and, radiation therapy.
	www.vh.org /adult/provider/radiology/ElectricPE/Text/VQ.html (566 words)

	Regional ventilation-perfusion distribution is more uniform in the prone position -- Mure et al. 88 (3): 1076 -- ...
		Distribution of pulmonary ventilation and perfusion measured simultaneously in awake goats.
		Pulmonary perfusion is more uniform in the prone than in the supine position: scintigraphy in healthy humans.
		Tomography of regional ventilation and perfusion using krypton 81m in normal subjects and asthmatic patients.
	www.jap.org /cgi/content/full/88/3/1076 (3520 words)

	Impact of hypertension on the accuracy of exercise stress myocardial perfusion imaging for the diagnosis of coronary ...
		Impact of hypertension on the accuracy of exercise stress myocardial perfusion imaging for the diagnosis of coronary artery disease -- Elhendy et al.
		Impact of hypertension on the accuracy of exercise stress myocardial perfusion imaging for the diagnosis of coronary artery disease
		In hypertensive patients, myocardial perfusion abnormalities were detected in 79 of 102 patients with significant coronary
	www.heartjnl.com /cgi/content/abstract/85/6/655 (463 words)

	Brain SPECT: Radiopharmaceuticals
		Perfusion may also be referred to as regional blood flow or, in the brain, regional cerebral blood flow (rCBF)".
		Implicit in the use of those tracers that remain in the brain is the notion of a multicompartment clearance (the microsphere model).
		Despite these caveats, work in animals and humans has demonstrated that, under properly controlled conditions, SPECT data obtained with perfusion agents approximates perfusion closely enough to be meaningful in clinical and research studies.
	brighamrad.harvard.edu /education/online/BrainSPECT/Theory/Agents.html (683 words)

	Bedside assessment of cerebral perfusion reductions in patients with acute ischaemic stroke by near-infrared ...
		Bedside assessment of cerebral perfusion reductions in patients with acute ischaemic stroke by near-infrared spectroscopy and indocyanine green -- Terborg et al.
		Bedside assessment of cerebral perfusion reductions in patients with acute ischaemic stroke by near-infrared spectroscopy and indocyanine green
		perfusion deficits in acute stroke in CT and MRI studies.
	www.jnnp.com /cgi/content/full/75/1/38 (2315 words)

	Perfusion Books - PERFUSION.COM, INC.
		The Manual of Clinical Perfusion is the premier clinical perfusion reference manual.
		This book is a "must have" for every perfusion student and practicing perfusionist in the world.
		Perfusion provides current information on all aspects of perfusion, oxygenation and biocompatibility and their use in modern cardiac surgery.
	www.perfusion.com /perfusion/bookstore.html (447 words)

	The effects of dorzolamide on choroidal and retinal perfusion in non-exudative age related macular degeneration -- ...
		The effects of dorzolamide on choroidal and retinal perfusion in non-exudative age related macular degeneration -- Harris et al.
		Foveal electroretinograms and choroidal perfusion characteristics in fellow eyes of patients with unilateral neovascular age-related macular degeneration.
		Evolution of age-related macular degeneration with choroidal perfusion abnormality.
	bjo.bmjjournals.com /cgi/content/full/87/6/753 (2429 words)

	Warner Instruments - VC-8 Eight Channel Perfusion Valve Control Systems
		The VC-8 valve controller lies at the heart of a multi-valve perfusion system designed to automate and control the delivery of solutions to Warner Instruments imaging and recording chambers.
		Warner perfusion valve control systems are uncomplicated and easy to operate.
		A spill sensor probe is included for detecting an overflow condition in your perfusion chambers and will shut off all valves thereby protecting your valuable microscope optics.
	www.warneronline.com /product_info.cfm?ID=960 (483 words)

	Dynamic Magnetic Resonance Perfusion Imaging of Brain Tumors -- Covarrubias et al. 9 (5): 528 -- The Oncologist
		The overall principle of MR perfusion oncologic imaging is that
		MR perfusion without the use of an intravenous contrast agent.
		MR perfusion of brain tumors, as the confounding effect of steroid
	theoncologist.alphamedpress.org /cgi/content/full/9/5/528 (4922 words)

	Role of myocardial perfusion imaging for risk stratification in suspected or known coronary artery disease -- Sabharwal ...
		Long-term additive prognostic value of thallium-201 myocardial perfusion imaging over clinical and exercise stress test in low to intermediate risk patients: study in 1137 patients with 6-year follow-up.
		Incremental prognostic value of myocardial perfusion single photon emission computed tomography for the prediction of cardiac death: differential stratification for risk of cardiac death and myocardial infarction [Published erratum appears in Circulation 1998; 98:190].
		Enhanced detection of reversible perfusion defects by Tc-99m sestamibi compared to Tc-99m tetrofosmin during vasodilator stress SPECT imaging in mild-to-moderate coronary artery disease.
	heart.bmjjournals.com /cgi/content/full/89/11/1291 (3803 words)

	Nursing Encyclopedia
		Pediatric Liver Care Center Encyclopedia - includes terms and definitions you might hear during a child's liver-related evaluation and treatment.
		Perfusion Technology - Terms and acronym expansions for perfusion technology, open heart surgery and cardiology.
		Psychotherapy Terms - Encyclopedia of terms from the 2001 edition of "Guide to Psychotherapists in Private Practice".
	www.rtstudents.com /rnstudents/rn-encyclopedia.htm (804 words)

	Guidelines and Recommendations for Perfusion Imaging in Cerebral Ischemia: A Scientific Statement for Healthcare ... (Site not responding. Last check: 2007-10-21)
		Guidelines and Recommendations for Perfusion Imaging in Cerebral Ischemia: A Scientific Statement for Healthcare Professionals by the Writing Group on Perfusion Imaging, From the Council on Cardiovascular Radiology of the American Heart Association -- Latchaw et al.
		Perfusion imaging may be of aid in cases in which the clinical
		However, the MTT map of the perfusion study demonstrated markedly slow flow in the medial left posterior frontal and anterior parietal lobes (B).
	stroke.ahajournals.org /cgi/content/full/34/4/1084 (9294 words)

	Course Descriptions, Cardiovascular Perfusion, BS, Natural and Health Sciences, Miami, Florida - Barry University
		Exposure of sterile and aseptic techniques, interrelationships among personnel and surgical techniques within the operating room relating to perfusion.
		Introduction to the various components that comprise the software and hardware of the perfusion circuit and techniques in their utilization.
		Operation of complex perfusion related devices and students' participation in emergency procedures.
	www.barry.edu /snhs/BSprograms/cardioPerfusion/courseDescription.htm (295 words)

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